Change search
Refine search result
1 - 20 of 20
CiteExportLink to result list
Permanent link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Rows per page
  • 5
  • 10
  • 20
  • 50
  • 100
  • 250
Sort
  • Standard (Relevance)
  • Author A-Ö
  • Author Ö-A
  • Title A-Ö
  • Title Ö-A
  • Publication type A-Ö
  • Publication type Ö-A
  • Issued (Oldest first)
  • Issued (Newest first)
  • Created (Oldest first)
  • Created (Newest first)
  • Last updated (Oldest first)
  • Last updated (Newest first)
  • Standard (Relevance)
  • Author A-Ö
  • Author Ö-A
  • Title A-Ö
  • Title Ö-A
  • Publication type A-Ö
  • Publication type Ö-A
  • Issued (Oldest first)
  • Issued (Newest first)
  • Created (Oldest first)
  • Created (Newest first)
  • Last updated (Oldest first)
  • Last updated (Newest first)
Select
The maximal number of hits you can export is 250. When you want to export more records please use the 'Create feeds' function.
  • 1.
    Ghanbari, Amirhossein
    et al.
    KTH, School of Information and Communication Technology (ICT), Communication Systems, CoS, Radio Systems Laboratory (RS Lab). KTH, School of Information and Communication Technology (ICT), Centres, Center for Wireless Systems, Wireless@kth.
    Laya, Andrés
    KTH, School of Information and Communication Technology (ICT), Communication Systems, CoS, Radio Systems Laboratory (RS Lab).
    Markendahl, Jan
    KTH, School of Information and Communication Technology (ICT), Communication Systems, CoS, Radio Systems Laboratory (RS Lab). KTH, School of Information and Communication Technology (ICT), Centres, Center for Wireless Systems, Wireless@kth.
    Value Creation and Coopetition in M2M Ecosystem: - The Case of Smart City2016In: 2016 IEEE 27TH ANNUAL INTERNATIONAL SYMPOSIUM ON PERSONAL, INDOOR, AND MOBILE RADIO COMMUNICATIONS (PIMRC), IEEE , 2016, 330-335 p.Conference paper (Refereed)
    Abstract [en]

    Wireless ICT as a subcategory of the ICT industry has long been serving end users as its direct customers. The value for end users, i.e. connectivity as the end product of this industry, has been created in a linear chain where two major group of actors have been cooperating with each other: Telecom Equipment Vendors (TEV) and Mobile Network Operators (MNO). By the demand of other industries for connecting devices/machines in order to enable various services, Machine to Machine (M2M) communications and Internet of Things have emerged as new concepts where Wireless ICT could serve other industries. As a result “connectivity” became an enabler (service) and not the final product.

    In this paper we argue that linear telecom value chains are incapable of serving this new demand, since wireless ICT requires to co-create value with other industries. This causes the formation of telecom value networks in which traditional telecom actors have to form new (different) business relationships with each other; Cooperation with competitors and Competition with cooperators.

  • 2.
    Laya, Andres
    et al.
    KTH, School of Information and Communication Technology (ICT), Communication Systems, CoS, Radio Systems Laboratory (RS Lab).
    Alonso, L.
    Alonso-Zarate, J.
    Efficient Contention Resolution in Highly Dense LTE Networks for Machine Type Communications2015In: 2015 IEEE Global Communications Conference, GLOBECOM 2015, Institute of Electrical and Electronics Engineers (IEEE), 2015, 7417669Conference paper (Refereed)
    Abstract [en]

    In this paper, we propose a solution to efficiently handle the initial access contention for highly dense LTE networks, which still represents a challenge in terms of the high number of devices associated to Machine Type Communications. The analysis is based on the fact that, as the radius of a LTE cell is larger, the number of available preambles generated from a single root sequence is reduced. The current access mechanism, based on frame-slotted ALOHA, does not operate efficiently under these conditions, negatively affecting the access delay and collision probability. We show how the access procedure can be improved by implementing tree-splitting algorithms in order to cope with high number of simultaneous arrivals in large cells, above 5 km in radius. The implementation achieves as much as 85% reduction on the access delay and 54% reduction on energy consumption for cells with radius larger than 39 km.

  • 3.
    Laya, Andres
    et al.
    KTH, School of Information and Communication Technology (ICT), Communication Systems, CoS.
    Alonso, L.
    Chatzimisios, P.
    Alonso-Zarate, J.
    Massive access in the Random Access Channel of LTE for M2M communications: An energy perspective2015In: 2015 IEEE International Conference on Communication Workshop, ICCW 2015, IEEE conference proceedings, 2015, 1452-1457 p.Conference paper (Refereed)
    Abstract [en]

    The capacity limits of the Random Access Channel (RACH) of Long Term Evolution (LTE) for highly dense Machine-to-Machine communications are studied in this paper. We consider the case study when a high number of devices attempt to transmit information to the same base station in a very short period of time. Simulations have been performed considering several parameter configurations related to the random access procedure of LTE. The energy consumption is used as a primordial metric to compare any improvement regarding the random access procedure in future releases, in order to evaluate the impact on the battery lifetime of autonomous devices.

  • 4.
    Laya, Andres
    et al.
    Universitat Politecnica de Catalunya (UPC).
    Alonso, Luis
    Universitat Politecnica de Catalunya (UPC).
    Alonso-Zarate, Jesus
    Centre Tecnoloogic de Telecomunicacions de Catalunya (CTTC).
    Is the Random Access Channel of LTE and LTE-A Suitable for M2M Communications? A Survey of Alternatives2014In: IEEE Communications Surveys and Tutorials, ISSN 1553-877X, E-ISSN 1553-877X, Vol. 16, no 1, 4-16 p.Article in journal (Refereed)
    Abstract [sv]

    The 3GPP has raised the need to revisit the design of next generations of cellular networks in order to make them capable and efficient to provide M2M services. One of the key challenges that has been identified is the need to enhance the operation of the random access channel of LTE and LTE-A. The current mechanism to request access to the system is known to suffer from congestion and overloading in the presence of a huge number of devices. For this reason, different research groups around the globe are working towards the design of more efficient ways of managing the access to these networks in such circumstances. This paper aims to provide a survey of the alternatives that have been proposed over the last years to improve the operation of the random access channel of LTE and LTE-A. A comprehensive discussion of the different alternatives is provided, identifying strengths and weaknesses of each one of them, while drawing future trends to steer the efforts over the same shooting line. In addition, while existing literature has been focused on the performance in terms of delay, the energy efficiency of the access mechanism of LTE will play a key role in the deployment of M2M networks. For this reason, a comprehensive performance evaluation of the energy efficiency of the random access mechanism of LTE is provided in this paper. The aim of this computer-based simulation study is to set a baseline performance upon which new and more energy-efficient mechanisms can be designed in the near future.

  • 5.
    Laya, Andres
    et al.
    KTH, School of Information and Communication Technology (ICT), Communication Systems, CoS, Radio Systems Laboratory (RS Lab).
    Alonso, Luis
    Alonso-Zarate, Jesus
    Dohler, Mischa
    Green MTC, M2M, Internet of Things2015In: Green Communications: Principles, Concepts and Practice / [ed] Konstantinos Samdanis, Peter Rost, Andreas Maeder, Michela Meo and Christos Verikoukis, John Wiley & Sons, 2015, 217-236 p.Chapter in book (Refereed)
    Abstract [en]

    The capability of having any type of object interconnected and Internet-connected creates an unprecedented access and exchange of information that has been baptized as the Internet of Things (IoT). With the advancement of integrated technologies, improved batteries, and electronic miniaturization, everyday things will be equipped with sensors and microprocessors to collect information around them and execute smart applications. In addition, they will be able to communicate with each other. The IoT has the potential to revolutionize innovations; create new products, services, business; and reshape consumer’s behavior. IoT represents a major player for the future of Information and Communications Technologies (ICT).The development of the IoT must be environment friendly. ICT have shown to be a key contributor to global warming and environmental pollution; it is predicted that the global greenhouse gas (GHG) emissions from ICT will account for 12% of all emissions by 2020 at a growth rate of 6% per year. Therefore, it is mandatory to develop environmentally friendly - or “green” - technologies for the IoT, and ICT in general.Machine-to-Machine (M2M) communications constitute a fundamental part of the IoT. The term M2M refers to the exchange of data between two or more entities, objects, or machines that do not necessarily need human interaction. The envisioned market for such kind of communications is broader than the one traditional human-based communications in terms of number of users and variety of applications. Some forecasts predict figures up to 50 billion machines that will be connecting to communication networks by 2020. This is a very big number compared to the entire world population of around 7 billion people. Therefore, there are some challenges that need to be addressed in order to fully supportM2Mservices in current communication networks. From the technical point of view, M2M communications are substantially different from Human-to-Human (H2H) communications. For example, network operators should provide communication services at low cost in order to face the low Average Revenue Per User (ARPU). Despite the large number of expected M2M connections, most of them will generate very little and infrequent data traffic. Communication networks shall also provide suitable congestion and overload control solutions in order to handle a huge number of simultaneous connections. Features such as low mobility, time-controlled data delivery, group-based policing and addressing, low connection delays, and a wide variety of Quality of Service requirements are among other challenges that need to be addressed. All of them must have the “green” concept embedded. In order to ensure that devices can operate autonomously for years or even decades without human intervention, it is necessary to provide networks with highly efficient communication protocols. This is the main focus of this chapter.The European Telecommunications Standards Institute (ETSI) created in 2009 a dedicated technical committee to identify key M2M use cases, understand the service requirements, and promote standards for the complete end-to-end M2M functional architecture. Later, in 2012, the global One M2M project was also established by ETSI, with other international standardization bodies, in order to define M2M standards that can accelerate the deployment and success of M2M applications.

  • 6.
    Laya, Andres
    et al.
    KTH, School of Information and Communication Technology (ICT), Communication Systems, CoS, Radio Systems Laboratory (RS Lab). Universitat Politècnica de Catalunya (UPC), Catalunya, Spain.
    Alonso, Luis
    Chatzimisios, Periklis
    Alonso-Zarate, Jesus
    Reliable Machine-to-Machine Multicast Services with Multi-Radio Cooperative Retransmissions2015In: Journal on spesial topics in mobile networks and applications, ISSN 1383-469X, E-ISSN 1572-8153, Vol. 20, no 6, 734-744 p.Article in journal (Refereed)
    Abstract [en]

    The 3GPP is working towards the definition of service requirements and technical solutions to provide support for energy-efficient Machine Type Communications (MTC) in the forthcoming generations of cellular networks. One of the envisioned solutions consists in applying group management policies to clusters of devices in order to reduce control signaling and improve upon energy efficiency, e.g., multicast Over-The-Air (OTA) firmware updates. In this paper, a Multi-Radio Cooperative Retransmission Scheme is proposed to efficiently carry out multicast transmissions in MTC networks, reducing both control signaling and improving energy-efficiency. The proposal can be executed in networks composed by devices equipped with multiple radio interfaces which enable them to connect to both a cellular access network, e.g., LTE, and a short-range MTC area network, e.g., Low-Power Wi-Fi or ZigBee, as foreseen by the MTC architecture defined by ETSI. The main idea is to carry out retransmissions over the M2M area network upon error in the main cellular link. This yields a reduction in both the traffic load over the cellular link and the energy consumption of the devices. Computer-based simulations with ns-3 have been conducted to analyze the performance of the proposed scheme in terms of energy consumption and assess its superior performance compared to non-cooperative retransmission schemes, thus validating its suitability for energy-constrained MTC applications.

  • 7.
    Laya, Andres
    et al.
    KTH, School of Information and Communication Technology (ICT), Centres, Center for Wireless Systems, Wireless@kth. KTH, School of Information and Communication Technology (ICT), Communication Systems, CoS, Radio Systems Laboratory (RS Lab).
    Bratu, Vlad Ioan
    KTH, School of Information and Communication Technology (ICT), Centres, Center for Wireless Systems, Wireless@kth. KTH, School of Information and Communication Technology (ICT), Communication Systems, CoS, Radio Systems Laboratory (RS Lab).
    Markendahl, Jan
    KTH, School of Information and Communication Technology (ICT), Communication Systems, CoS, Radio Systems Laboratory (RS Lab).
    Who Is Investing in Machine-to-Machine Communications?2013In: 24th European Regional ITS Conference, Florence 2013, 2013Conference paper (Refereed)
    Abstract [en]

    Machine-to-Machine (M2M) communications refers to the automate exchange of information between devices for control and monitoring applications. This type of communication is not new since automated systems have been present for more than three decades. However, miniaturization of device’s size, reduction of production costs and drop in communication fees (altogether with the massive adoption of real-time access of information in current society) are expanding the set of applications and solutions currently under consideration. The real complexity relies on the fact that M2M is not only an add-on communication solution, like the case of traditional human-centric broadband communications. M2M usually entails a change in the core business of an industry, since the relationship with external partners and the internal tasks can be radically modified

    In this paper, we anaylise the players involved in M2M communications and how they position themselves in a market which requires them to adjust their traditional business approach. The main question addressed in this work refers to “which players are investing in M2M, which is their view and how could their approach affect the current ICT sector?” We highlight the dominance and relationship between different actors and also look at barriers that prevent investments, regulations in the area and standardization efforts.

    Using data from interviews, use case analysis, and expert workshops we place our analysis in a real-market context. It can be concluded that there is a consensus about the potential benefits of services based on M2M communications and key succes factors are partnerships among different actors, re-thinking of roles, e.g., transition to a service provider and defining the right type of value added service

  • 8.
    Laya, Andres
    et al.
    KTH, School of Information and Communication Technology (ICT), Communication Systems, CoS, Radio Systems Laboratory (RS Lab). KTH, School of Information and Communication Technology (ICT), Centres, Center for Wireless Systems, Wireless@kth.
    Ghanbari, Amirhossein
    KTH, School of Information and Communication Technology (ICT), Communication Systems, CoS, Radio Systems Laboratory (RS Lab). KTH, School of Information and Communication Technology (ICT), Centres, Center for Wireless Systems, Wireless@kth.
    Markendahl, Jan
    KTH, School of Information and Communication Technology (ICT), Communication Systems, CoS, Radio Systems Laboratory (RS Lab). KTH, School of Information and Communication Technology (ICT), Centres, Center for Wireless Systems, Wireless@kth.
    Tele-economics in MTC: what numbers would not show2015In: EAI Endorsed Transactions on Internet of Things, ISSN 2414-1399, Vol. 1, no 1Article in journal (Refereed)
    Abstract [en]

    This paper elaborates on the relevance of Tele-Economic research to understand the effect that Machine-Type Commu- nications (MTC) has on different markets and also the market forces affecting the adoption of services based on MTC. The paper is presented in a tutorial form, offering concept and definitions of economic terms that are gaining relevance in the technical community in the MTC context. The concept of services is further analysed in as a change in the tele- communication industry mind-set in order to tap into the economic value of MTC in the realization of the Internet-of- Things. Finally, insights are presented looking forward into the relevance of Tele-Economic research for 5G.

  • 9.
    Laya, Andres
    et al.
    KTH, School of Information and Communication Technology (ICT), Communication Systems, CoS.
    Kalalas, Charalampos
    Vazquez-Gallego, Francisco
    Alonso, Luis
    Alonso-Zarate, Jesus
    Goodbye, ALOHA!2016In: IEEE Access, E-ISSN 2169-3536, Vol. 4, 2029-2044 p.Article in journal (Refereed)
    Abstract [en]

    The vision of the Internet of Things (IoT) to interconnect and Internet-connect everyday people, objects, and machines poses new challenges in the design of wireless communication networks. The design of medium access control (MAC) protocols has been traditionally an intense area of research due to their high impact on the overall performance of wireless communications. The majority of research activities in this field deal with different variations of protocols somehow based on ALOHA, either with or without listen before talk, i.e., carrier sensing multiple access. These protocols operate well under low traffic loads and low number of simultaneous devices. However, they suffer from congestion as the traffic load and the number of devices increase. For this reason, unless revisited, the MAC layer can become a bottleneck for the success of the IoT. In this paper, we provide an overview of the existing MAC solutions for the IoT, describing current limitations and envisioned challenges for the near future. Motivated by those, we identify a family of simple algorithms based on distributed queueing (DQ), which can operate for an infinite number of devices generating any traffic load and pattern. A description of the DQ mechanism is provided and most relevant existing studies of DQ applied in different scenarios are described in this paper. In addition, we provide a novel performance evaluation of DQ when applied for the IoT. Finally, a description of the very first demo of DQ for its use in the IoT is also included in this paper.

  • 10.
    Laya, Andres
    et al.
    KTH, School of Information and Communication Technology (ICT), Communication Systems, CoS, Radio Systems Laboratory (RS Lab). Universitat Politècnica de Catalunya (UPC), Spain.
    Wang, K.
    Alonso, L.
    Alonso-Zarate, J.
    Markendahl, Jan
    KTH, School of Information and Communication Technology (ICT), Communication Systems, CoS, Radio Systems Laboratory (RS Lab).
    Supporting Machine-to-Machine Communications in Long-Term Evolution Networks2015In: Machine-to-machine (M2M) Communications: Architecture, Performance and Applications / [ed] Anton-Haro, Carles; Dohler, Mischa, Woodhead Publishing , 2015, 109-129 p.Chapter in book (Refereed)
    Abstract [en]

    Abstract This chapter describes key challenges that must be faced to turn long-term evolution (LTE) into a suitable technology for machine-to-machine (M2M) and machine-type communications (MTC). In particular, the challenges dealt with in this chapter relate to managing a large number of devices, attaining very low energy consumption, ensuring low-complexity protocols to bring down the cost of devices, and extending coverage to facilitate one-hop transmissions. Beyond being technically feasible, network operators must adopt network optimization; therefore, a techno-economic perspective is presented in this chapter as well. Business-related requirements and implications that emerge from the traffic mix between humans and machines are covered, including scalability and deployment cost issues, as well as migration options from current solutions.

  • 11.
    Laya, Andres
    et al.
    KTH, School of Information and Communication Technology (ICT), Communication Systems, CoS, Radio Systems Laboratory (RS Lab).
    Wang, Kun
    Ahmed, Ashraf Awadelkarim Widaa
    KTH, School of Information and Communication Technology (ICT), Communication Systems, CoS, Radio Systems Laboratory (RS Lab).
    Alonso-Zarate, Jesus
    Markendahl, Jan
    KTH, School of Information and Communication Technology (ICT), Communication Systems, CoS, Radio Systems Laboratory (RS Lab).
    Alonso, Luis
    Device-to-device communications and small cells: Enabling spectrum reuse for dense networks2014In: IEEE wireless communications, ISSN 1536-1284, E-ISSN 1558-0687, Vol. 21, no 4, 98-105 p.Article in journal (Refereed)
    Abstract [en]

    In the evolution of communication networks, there has always been a need to increase the capacity to cope with the continuous growing demand for data transmission. However, with the arrival of the Internet-of-Things and the commoditization of broadband access through smartphones, tablets, smart-watches, and all types of connecting devices, future networks must be capable of providing higher bandwidth and Quality of Experience, as wellas operating in dense networks with a massive number of simultaneous connections. This high number of connections will be very heterogeneous, spanning from highly-demanding data rate applications to low-complexity and high energy-efficient Machine-to-Machine communications. In such a dense and complex scenario, a more flexible use of spectrum resources is deemed to be the way to meet the growing requirements for data transmission. In particular, this article focuses on Device-to-Device communications and small cell deployments as emerging facilitators of such a demanding and heterogeneous scenario. The pros and cons of both complementary strategies are identified from both a technical and a business point of view, and main standardization activities are discussed. The aim of this article is to identify and describe open challenges and to inspire new areas for research that make viable the next generation of dense networks.

  • 12.
    Laya, Andrés
    KTH, School of Information and Communication Technology (ICT), Communication Systems, CoS, Radio Systems Laboratory (RS Lab).
    Challenges Adopting Internet-of-Things for Healthcare in SwedenManuscript (preprint) (Other academic)
    Abstract [en]

    PURPOSE: To review how public and private organizations innovate at the convergence of the ICT and the healthcare industries with services based on connected devices in Sweden.

     

    DESIGN/METHODOLOGY/APPROACH: Country case study, using aggregation of primary and secondary data about challenges associated to the adoption of new solutions in the public health and social care systems; taking a business ecosystem approach.

     

    FINDINGS: There are four key challenges affecting innovation based on connected devices and distinctive development patterns of services based on connected devices. For each development pattern, the paper identifies different ways to handle the existing challenges, and it is followed by different types of actors in the business ecosystem.

     

    ORIGINALITY/VALUE: The key contribution of this study is to show how innovative initiatives are addressing the existing challenges by following one of the three distinctive development patterns in Sweden—the public sector, the private sector, or the wellbeing sector.

  • 13.
    Laya, Andrés
    KTH, School of Information and Communication Technology (ICT), Communication Systems, CoS, Radio Systems Laboratory (RS Lab).
    The Internet of Things in Health, Social Care, and Wellbeing2017Doctoral thesis, comprehensive summary (Other academic)
    Abstract [en]

    The Internet of Things (IoT) enables opportunities to remotely sense and control objects via communication networks. We study services based on connected devices and the collaboration they generate between the ICT and the Health, Social Care and Wellbeing (HSCWB) industries.

    In HSCWB, IoT can support a change from episodic treatments of illness to preventive care and wellbeing solutions. The IoT can be a supporter in cost efficient and high quality health care. The objective is to achieve healthier life years and more efficiency in health and social care. Even if the potential of IoT in HSCWB has been proven in pilot projects and small-scale solutions, the benefits and opportunities for many actors are still unclear. There is a research gap in studying the roles and business opportunities for market-driven technology-based solutions enabled by connected devices.

    The research approach separates technological and business domains. On the technology side, the focus is on advances in connectivity for IoT. We present the technical details on a limitation to support IoT devices in cellular networks. We quantify the limitations in the Random Access Channel of the LTE air interface to support IoT devices. Moreover, we propose the adaptation of an access mechanism to enable massive number of simultaneous access attempt in cellular networks.

    On the business side, we identify and present how the conditions of the health and social care structure in Sweden affect the establishment of IoT solutions in HSCWB. We then show how these conditions have generated three distinctive development patterns—to innovate within the public sector, to develop solutions in the private care sector, or to target the wellbeing sector to avoid regulatory setbacks.

    Based on these patterns, we look closer into study cases to show how business opportunities have been addressed from a business network perspective. When deploying an IoT service, not all critical challenges can be appreciated at a single firm level. Therefore, we rely on a network-level business model framework to analyze emerging IoT services in HSCWB.

    The findings suggest that IoT components can improve an existing service by automating internal working processes, or they can enable new value propositions and convenience to end users. In general terms, the collaboration can be used (i) to improve the efficiency of existing services in health and social care without an original intention to change the service offering, or (ii) to create novelty and differentiation, without affecting the internal logics of existing HSCWB services.

  • 14.
    Laya, Andrés
    et al.
    KTH, School of Information and Communication Technology (ICT), Communication Systems, CoS, Radio Systems Laboratory (RS Lab). KTH, School of Information and Communication Technology (ICT), Centres, Center for Wireless Systems, Wireless@kth.
    Markendahl, Jan
    KTH, School of Information and Communication Technology (ICT), Communication Systems, CoS, Radio Systems Laboratory (RS Lab). KTH, School of Information and Communication Technology (ICT), Centres, Center for Wireless Systems, Wireless@kth.
    The M2M promise, what could make it happen?2013In: 2013 IEEE 14th International Symposium on a World of Wireless, Mobile and Multimedia Networks, WoWMoM 2013, IEEE , 2013, 6583489- p.Conference paper (Refereed)
    Abstract [en]

    Machine-to-Machine (M2M) communications is a topic of great importance that maintains an ongoing interest in the academic community and in countless industries and services. Technological advances allow the successful deployment of particular solutions but many potential applications still face limitations that prevent them from happening. This paper compares data collected from five implementation cases in order to analyze key issues related to their value proposition and the challenges that currently limit the adoption of M2M communications.

  • 15.
    Laya, Andrés
    et al.
    KTH, School of Information and Communication Technology (ICT), Communication Systems, CoS, Radio Systems Laboratory (RS Lab).
    Markendahl, Jan
    KTH, School of Information and Communication Technology (ICT), Communication Systems, CoS, Radio Systems Laboratory (RS Lab).
    Lundberg, Stefan
    KTH, School of Technology and Health (STH), Health Systems Engineering, Ergonomics.
    Network-Centric Business Models for Health, Social Care and Wellbeing Solutions in the Internet of ThingsManuscript (preprint) (Other academic)
    Abstract [en]

    In this multiple case study we analyze solutions based on connected devices in the context of health, social care and wellbeing. Based on the consideration that a solution is a combination of services and products, we build on the notion that business models can be studied at a firm- and a network-level. These two levels are used to motivate the reasons why solutions emerging at the intersection of the healthcare and the ICT industries benefit from collaboration among different actors. We conclude that the firm- and the network-level development of business models provide alignment in the business network and are useful to establish the relation that technological component have with overall solutions. Our findings suggest that some component bring novelty in the final offer with affecting the ongoing operation, while other component aim at improving the internal working processes, with minimal effects on the final offer to end users. We discuss the benefits of a network-level perspective for each case.

  • 16.
    Laya, Andrés
    et al.
    KTH, School of Information and Communication Technology (ICT), Communication Systems, CoS, Radio Systems Laboratory (RS Lab). u18hwyj1.
    Sundquist, Mårten
    KTH, School of Information and Communication Technology (ICT), Communication Systems, CoS, Radio Systems Laboratory (RS Lab).
    Markendahl, Jan
    KTH, School of Information and Communication Technology (ICT), Communication Systems, CoS, Radio Systems Laboratory (RS Lab).
    Motivation, Regulation And Actor Constellations - Experiences From A Multidisciplinary Research Project On Health And Wellbeing As Part Of The Internet Of Things2015Conference paper (Refereed)
    Abstract [en]

    Internet of Things is an inherently multi-disciplinary area, as mobile connectivity, sensor device technologies and cloud solutions make strong impact in a multitude of applications in diverse sectors. In this paper we study some technical solutions, business models and behavior aspects of IoT in a Health and Wellbeing context. The work is based on an ongoing research project initiated by a wireless research center. This project includes two startup-up companies that are developing services based on connected devices. As part of the evaluation activities, the project counts with the collaboration of the largest nonprofit training organization in Sweden. As part of the research project, a prototype application is developed for training. Leveraging on the insights related to the individual motivational aspects, collected from an end-user study on motivational and adoptability aspects of Internet of Things in a workout context. In order to better understand the context on which services are provided, an ecosystem analysis is elaborated in order to highlight the differences between the healthcare and wellbeing contexts.

  • 17.
    Laya, Romero Andres
    et al.
    KTH, School of Information and Communication Technology (ICT), Communication Systems, CoS, Radio Systems Laboratory (RS Lab).
    Alonso, L.
    Alonso-Zarate, J.
    Contention resolution queues for massive machine type communications in LTE2015In: 2015 IEEE 26th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications (PIMRC), Institute of Electrical and Electronics Engineers (IEEE), 2015, 2314-2318 p.Conference paper (Refereed)
    Abstract [en]

    In this paper, we address the challenge of high device density performing simultaneous transmissions by proposing and evaluating a solution to efficiently handle the initial access contention for highly dense LTE networks. We present the implementation of a tree-splitting algorithm in the access procedure of LTE, which is capable to cope with high number of simultaneous arrivals. Based on simulations we show a feasible implementation capable to achieve, under certain network configuration conditions, up to 85% average access delay reduction and 40% reduction on the average energy consumption, while maintaining a consistently low blocking probability, regardless of the number of initial simultaneous access attempts.

  • 18.
    Markendahl, Jan
    et al.
    KTH, School of Information and Communication Technology (ICT), Communication Systems, CoS, Radio Systems Laboratory (RS Lab).
    Laya, Andres
    KTH, School of Information and Communication Technology (ICT), Communication Systems, CoS, Radio Systems Laboratory (RS Lab).
    Transformation of home care services, related working processes and business models due to introduction of mobile technology2014In: Transformation of home care services, related working processes and business models due to introduction of mobile technology, IMP , 2014Conference paper (Refereed)
  • 19.
    Markendahl, Jan
    et al.
    KTH, School of Information and Communication Technology (ICT), Communication Systems, CoS, Radio Systems Laboratory (RS Lab).
    Laya, Andrés
    KTH, School of Information and Communication Technology (ICT), Communication Systems, CoS, Radio Systems Laboratory (RS Lab).
    Business Challenges for Internet of Things: Findings from e-Home Care, Smart Access Control, Smart Cities and Homes2013Conference paper (Refereed)
    Abstract [en]

    Services based on the Internet of Things (IoT) and Machine to Machine (M2M) communications are actively being proposed for several industries. A lot of initiatives are presented for smart cities, smart homes and smart energy systems. But even with advances in new technology and substantial amount of research funding, most of these services are not deployed on a large scale. Innovation is not needed only for the technical solutions but also for the business models and how actors cooperate.In this paper, a number of projects on smart cities, smart homes and energy systems are presented and compared with some successful cases where new IoT and M2M concepts have been applied. Also, an analysis in presented for the benefits and values that can be identified for different IoT services, including cost saving in service provisioning and ease of use for end-users. It is also studied how drivers, such as improvement in resource utilization, are often hampered by the unwillingness of traditional actors to share a service platform, afraid of losing control over their customers.Examples show how the business models changed or need to be changed. The co-existence of services from parallel sectors and within the same sector is studied in this paper and further compared with a case of competing solutions for the same service (mobile parking). The application of new technology entails changes in the organization of actors; this paper reveals the decreased relevance of some traditional actors, like communication providers, in the service delivery when IoT and M2M solutions are adopted.

  • 20. Shariatmadari, Hamidreza
    et al.
    Ratasuk, Rapeepat
    Iraji, Sassan
    Laya, Andres
    KTH, School of Information and Communication Technology (ICT), Communication Systems, CoS, Radio Systems Laboratory (RS Lab).
    Taleb, Tarik
    Jaentti, Riku
    Ghosh, Amitava
    Machine-type communications: current status and future perspectives toward 5G systems2015In: IEEE Communications Magazine, ISSN 0163-6804, E-ISSN 1558-1896, Vol. 53, 10-17 p.Article in journal (Refereed)
    Abstract [en]

    Machine-type communications (MTC) enables a broad range of applications from mission-critical services to massive deployment of autonomous devices. To spread these applications widely, cellular systems are considered as a potential candidate to provide connectivity for MTC devices. The ubiquitous deployment of these systems reduces network installation cost and provides mobility support. However, based on the service functions, there are key challenges that currently hinder the broad use of cellular systems for MTC. This article provides a clear mapping between the main MTC service requirements and their associated challenges. The goal is to develop a comprehensive understanding of these challenges and the potential solutions. This study presents, in part, a roadmap from the current cellular technologies toward fully MTC-capable 5G mobile systems.

1 - 20 of 20
CiteExportLink to result list
Permanent link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf