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Publications (10 of 132) Show all publications
Yang, G., Xiao, M., Al-Zubaidy, H., Huang, Y. & Gross, J. (2018). Analysis of Millimeter-Wave Multi-Hop Networks With Full-Duplex Buffered Relays. IEEE/ACM Transactions on Networking, 26(1), 576-590
Open this publication in new window or tab >>Analysis of Millimeter-Wave Multi-Hop Networks With Full-Duplex Buffered Relays
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2018 (English)In: IEEE/ACM Transactions on Networking, ISSN 1063-6692, E-ISSN 1558-2566, Vol. 26, no 1, p. 576-590Article in journal (Refereed) Published
Abstract [en]

The abundance of spectrum in the millimeter-wave (mm-wave) bands makes it an attractive alternative for future wireless communication systems. Such systems are expected to provide data transmission rates in the order of multi-gigabits per second in order to satisfy the ever-increasing demand for high rate data communication. Unfortunately, mm-wave radio is subject to severe path loss, which limits its usability for long-range outdoor communication. In this paper, we propose a multi-hop mm-wave wireless network for outdoor communication, where multiple full-duplex buffered relays are used to extend the communication range, while providing end-to-end performance guarantees to the traffic traversing the network. We provide a cumulative service process characterization for the mm-wave propagation channel with self-interference in terms of the moment generating function of its channel capacity. Then, we then use this characterization to compute probabilistic upper bounds on the overall network performance, i.e., total backlog and end-to-end delay. Furthermore, we study the effect of self-interference on the network performance and propose an optimal power allocation scheme to mitigate its impact in order to enhance network performance. Finally, we investigate the relation between relay density and network performance under a sum power constraint. We show that increasing relay density may have adverse effects on network performance, unless the selfinterference can be kept sufficiently small.

Place, publisher, year, edition, pages
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 2018
Keyword
Millimeter-wave, multi-hop, moment generating functions, delay, backlog
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
urn:nbn:se:kth:diva-224045 (URN)10.1109/TNET.2017.2786341 (DOI)000425324000042 ()2-s2.0-85041182670 (Scopus ID)
Note

QC 20180320

Available from: 2018-03-20 Created: 2018-03-20 Last updated: 2018-04-16Bibliographically approved
Liu, Y., Fang, X. & Xiao, M. (2018). Discrete Power Control and Transmission Duration Allocation for Self-Backhauling Dense mmWave Cellular Networks. IEEE Transactions on Communications, 66(1), 432-447
Open this publication in new window or tab >>Discrete Power Control and Transmission Duration Allocation for Self-Backhauling Dense mmWave Cellular Networks
2018 (English)In: IEEE Transactions on Communications, ISSN 0090-6778, E-ISSN 1558-0857, Vol. 66, no 1, p. 432-447Article in journal (Refereed) Published
Abstract [en]

Wireless self-backhauling is a promising solution for dense millimeter wave (mmWave) small cell networks, the system efficiency of which, however, depends upon the balance of resources between the backhaul link and access links of each small cell. In this paper, we address the discrete power control and non-unified transmission duration allocation problem for self-backhauling mmWave cellular networks, in which each small cell is allowed to adopt individual transmission duration allocation ratio according to its own channel and load conditions. We first formulate the considered problem as a non-cooperative game G with a common utility function. We prove the feasibility and existence of the pure strategy Nash equilibrium (NE) of game G under some mild conditions. Then, we design a centralized resource allocation algorithm based on the best response dynamic and a decentralized resource allocation algorithm (DRA) based on control-plane/user-plane split architecture and loglinear learning to obtain a feasible pure strategy NE of game G. For speeding up convergence and reducing signaling overheads, we reformulate the considered problem as a non-cooperative game G' with local interaction, in which only local information exchange is required. Based on DRA, we design a concurrent DRA to obtain the best feasible pure strategy NE of game G'. Furthermore, we extend the proposed algorithms to the discrete power control and unified transmission duration allocation optimization problem. Extensive simulations are conducted with different system configurations to demonstrate the convergence and effectiveness of the proposed algorithms.

Place, publisher, year, edition, pages
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 2018
Keyword
Dense millimeter wave (mmWave) cellular networks, wireless self-backhauling, power control, control-plane/user-plane (C-plane/U-plane) split architecture
National Category
Computer and Information Sciences
Identifiers
urn:nbn:se:kth:diva-221948 (URN)10.1109/TCOMM.2017.2757017 (DOI)000422754400033 ()2-s2.0-85030670863 (Scopus ID)
Funder
Wireless@kthEU, FP7, Seventh Framework Programme, PIRSESGA-2013-612652
Note

QC 20180130

Available from: 2018-01-30 Created: 2018-01-30 Last updated: 2018-02-02Bibliographically approved
Xing, W., Liu, F., Wang, C., Xiao, M. & Wang, P. (2018). Multi-Source Network-Coded D2D Cooperative Content Distribution Systems. Journal of Communications and Networks, 20(1), 69-84
Open this publication in new window or tab >>Multi-Source Network-Coded D2D Cooperative Content Distribution Systems
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2018 (English)In: Journal of Communications and Networks, ISSN 1229-2370, E-ISSN 1976-5541, Vol. 20, no 1, p. 69-84Article in journal (Refereed) Published
Abstract [en]

In this paper, we investigate the information transmission in a typical 5G device-to-device (D2D) communication application scenario, i.e., a content distribution system with a number of information sources intending to broadcast their messages to multiple destinations in the vicinity. Due to the dynamic nature of wireless signal propagation links, it is hard to guarantee a satisfactory performance by direct source-destination transmissions, especially when the system is operating in a reuse-mode. Relays can be introduced to the system to solve this problem. However, adopting the conventional repetition coding at relays inefficiently utilizes the available resources, for the considered multi-source scenario. Therefore, we investigate applying a class of finite-field network codes at the relays, when potentially three types of relays are deployed to assist the information distribution process. We proposed the algorithms to derive the system outage probability and analyze the trade-off between energy efficiency and spectral efficiency. Our analytical and numerical results clearly demonstrate the potential of exploiting network-coded cooperative communications in future 5G D2D systems.

Place, publisher, year, edition, pages
KOREAN INST COMMUNICATIONS SCIENCES (K I C S), 2018
Keyword
Cooperative communication, device-to-device (D2D) communication, energy efficiency, network coding, spectral efficiency
National Category
Computer and Information Sciences
Identifiers
urn:nbn:se:kth:diva-225747 (URN)10.1109/JCN.2018.000007 (DOI)000428149300007 ()
Note

QC 20180410

Available from: 2018-04-10 Created: 2018-04-10 Last updated: 2018-04-10Bibliographically approved
Ma, Z., Chien, J.-T., Tan, Z.-H., Song, Y.-Z., Taghia, J. & Xiao, M. (2018). Recent advances in machine learning for non-Gaussian data processing. Neurocomputing, 278, 1-3
Open this publication in new window or tab >>Recent advances in machine learning for non-Gaussian data processing
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2018 (English)In: Neurocomputing, ISSN 0925-2312, E-ISSN 1872-8286, Vol. 278, p. 1-3Article in journal, Editorial material (Refereed) Published
Place, publisher, year, edition, pages
Elsevier, 2018
National Category
Bioinformatics (Computational Biology)
Identifiers
urn:nbn:se:kth:diva-223256 (URN)10.1016/j.neucom.2017.09.002 (DOI)000423965000001 ()
Note

QC 20180219

Available from: 2018-02-19 Created: 2018-02-19 Last updated: 2018-02-19Bibliographically approved
Huang, J. & Xiao, M. (2018). State of the art on road traffic sensing and learning based on mobile user network log data. Neurocomputing, 278, 110-118
Open this publication in new window or tab >>State of the art on road traffic sensing and learning based on mobile user network log data
2018 (English)In: Neurocomputing, ISSN 0925-2312, E-ISSN 1872-8286, Vol. 278, p. 110-118Article in journal (Refereed) Published
Abstract [en]

With the improvement of the storage and big data processing technology, mobile operators are able to extract and store a large amount of mobile network generated user behavior data, in order to develop various intelligent applications. One interesting application based on these data is traffic sensing, which uses techniques of learning human mobility patterns from updated location information in network interaction log data. Mobile networks, under which a huge amount of frequently updated location information of mobile users are tracked, can provide complete coverage to estimate traffic condition on roads and highways. This paper studies potential challenges and opportunities in intelligent traffic sensing from the data science point of view with mobile network generated data. Firstly, we classify the data resources available in the commercial radio network according to different taxonomy criteria. Then we outline the broken-down problems that fit in the framework of traffic sensing based on mobile user network log data. We study the existing data processing and learning algorithms on extracting traffic condition information from a large amount of mobile network log data. Finally we make suggestion on potential future work for traffic sensing on data from mobile networks. We believe the techniques and insights provided here will inspire the research community in data science to develop the machine learning models of traffic sensing on the widely collected mobile user behavior data.

Place, publisher, year, edition, pages
Elsevier, 2018
Keyword
Mobile network log, Traffic sensing, Traffic estimation, CDR, IPDR, Big data
National Category
Other Computer and Information Science
Identifiers
urn:nbn:se:kth:diva-223257 (URN)10.1016/j.neucom.2017.03.096 (DOI)000423965000012 ()
Note

QC 20180219

Available from: 2018-02-19 Created: 2018-02-19 Last updated: 2018-02-19Bibliographically approved
Zhang, L., Xiao, M., Wu, G., Alam, M., Liang, Y.-C. & Li, S. (2017). A SURVEY OF ADVANCED TECHNIQUES FOR SPECTRUM SHARING IN 5G NETWORKS. IEEE wireless communications, 24(5), 44-51
Open this publication in new window or tab >>A SURVEY OF ADVANCED TECHNIQUES FOR SPECTRUM SHARING IN 5G NETWORKS
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2017 (English)In: IEEE wireless communications, ISSN 1536-1284, E-ISSN 1558-0687, Vol. 24, no 5, p. 44-51Article in journal (Refereed) Published
Abstract [en]

Spectrum efficiency is one of the key performance metrics in 5G communication networks. To enhance spectrum efficiency, advanced spectrum sharing techniques are normally used. In this article, we provide a survey of the recent development of advanced techniques for spectrum sharing. In particular, we elaborate cognitive radio, device-to-device communication, in-band full-duplex communication, non-orthogonal multiple access, and Long Term Evolution on unlicensed spectrum. For each technique, we present the basic principle and research methodology of the state of the art. By considering various promising evolutions in 5G networks, we emphasize challenges to deploy each technique. Finally, we discuss the integration issue of multiple spectrum sharing techniques and identify potential challenges.

Place, publisher, year, edition, pages
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 2017
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
urn:nbn:se:kth:diva-217758 (URN)10.1109/MWC.2017.1700069 (DOI)000414044700008 ()2-s2.0-85034222470 (Scopus ID)
Note

QC 20171121

Available from: 2017-11-21 Created: 2017-11-21 Last updated: 2017-11-21Bibliographically approved
Xiao, M., Mumtaz, S., Huang, Y., Dai, L., Li, Y., Matthaiou, M., . . . Ghosh, A. (2017). Millimeter Wave Communications for Future Mobile Networks. IEEE Journal on Selected Areas in Communications, 35(9), 1909-1935
Open this publication in new window or tab >>Millimeter Wave Communications for Future Mobile Networks
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2017 (English)In: IEEE Journal on Selected Areas in Communications, ISSN 0733-8716, E-ISSN 1558-0008, Vol. 35, no 9, p. 1909-1935Article in journal (Refereed) Published
Abstract [en]

Millimeter wave (mmWave) communications have recently attracted large research interest, since the huge available bandwidth can potentially lead to the rates of multiple gigabit per second per user. Though mmWave can be readily used in stationary scenarios, such as indoor hotspots or backhaul, it is challenging to use mmWave in mobile networks, where the transmitting/receiving nodes may be moving, channels may have a complicated structure, and the coordination among multiple nodes is difficult. To fully exploit the high potential rates of mmWave in mobile networks, lots of technical problems must be addressed. This paper presents a comprehensive survey of mmWave communications for future mobile networks (5G and beyond). We first summarize the recent channel measurement campaigns and modeling results. Then, we discuss in detail recent progresses in multiple input multiple output transceiver design for mmWave communications. After that, we provide an overview of the solution for multiple access and backhauling, followed by the analysis of coverage and connectivity. Finally, the progresses in the standardization and deployment of mmWave for mobile networks are discussed.

Place, publisher, year, edition, pages
Institute of Electrical and Electronics Engineers (IEEE), 2017
Keyword
Millimeter wave communications, mobile networks, channel model, MIMO beamforming, multiple access, standardization
National Category
Computer and Information Sciences
Identifiers
urn:nbn:se:kth:diva-214315 (URN)10.1109/JSAC.2017.2719924 (DOI)000408055300001 ()2-s2.0-85023746035 (Scopus ID)
Note

QC 20170918

Available from: 2017-09-18 Created: 2017-09-18 Last updated: 2018-01-13Bibliographically approved
Xiao, M., Mumtaz, S., Huang, Y., Dai, L., Li, Y., Matthaiou, M., . . . Ghosh, A. (2017). Millimeter Wave Communications for Future Mobile Networks (Guest Editorial), Part I. IEEE Journal on Selected Areas in Communications, 35(7), 1425-1431
Open this publication in new window or tab >>Millimeter Wave Communications for Future Mobile Networks (Guest Editorial), Part I
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2017 (English)In: IEEE Journal on Selected Areas in Communications, ISSN 0733-8716, E-ISSN 1558-0008, Vol. 35, no 7, p. 1425-1431Article in journal, Editorial material (Refereed) Published
Place, publisher, year, edition, pages
IEEE, 2017
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
urn:nbn:se:kth:diva-210995 (URN)10.1109/JSAC.2017.2698698 (DOI)000404242600001 ()2-s2.0-85021318479 (Scopus ID)
Note

QC 20170808

Available from: 2017-08-08 Created: 2017-08-08 Last updated: 2017-12-08Bibliographically approved
Zhang, Z., Ma, Z., Xiao, M., Liu, G. & Fan, P. (2017). Modeling and Analysis of Non-Orthogonal MBMS Transmission in Heterogeneous Networks. IEEE Journal on Selected Areas in Communications, 35(10), 2221-2237
Open this publication in new window or tab >>Modeling and Analysis of Non-Orthogonal MBMS Transmission in Heterogeneous Networks
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2017 (English)In: IEEE Journal on Selected Areas in Communications, ISSN 0733-8716, E-ISSN 1558-0008, Vol. 35, no 10, p. 2221-2237Article in journal (Refereed) Published
Abstract [en]

Multimedia broadcast/multicast service (MBMS) transmission, which distributes the media content to multiple users on the same radio resources by using point-to-multipoint communications, is a highly spectrum efficient mechanism for multimedia communications. In this paper, we study the application of power domain non-orthogonal transmission to MBMS enhancements in a K-tier heterogeneous network, in order to satisfy the ever-increasing demands for emerging applications and performance requirements. Then, we present non-orthogonal multi-rate MBMS transmission (NOMRMT) and non-orthogonal multi-service MBMS transmission schemes and investigate their performance by using stochastic geometry. A tractable mode is developed to analyze the performance of asynchronous and synchronous non-orthogonal MBMS transmission. Based on this model, analytical expressions for the signal-to-interference-plusnoise ratio coverage probability, average number of served users, and sum rate are derived. The results demonstrate that non-orthogonal MBMS transmission can achieve better performance than the orthogonal one, while synchronous non-orthogonal MBMS transmission is superior to the asynchronous one.

Place, publisher, year, edition, pages
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 2017
Keyword
MBMS, non-orthogonal transmission, heterogeneous networks, stochastic geometry
National Category
Telecommunications
Identifiers
urn:nbn:se:kth:diva-214864 (URN)10.1109/JSAC.2017.2724458 (DOI)000410646800004 ()2-s2.0-85023193210 (Scopus ID)
Note

QC 20171024

Available from: 2017-10-24 Created: 2017-10-24 Last updated: 2017-10-24Bibliographically approved
Xue, Q., Fang, X., Xiao, M. & Yan, L. (2017). Multiuser Millimeter Wave Communications With Nonorthogonal Beams. IEEE Transactions on Vehicular Technology, 66(7), 5675-5688
Open this publication in new window or tab >>Multiuser Millimeter Wave Communications With Nonorthogonal Beams
2017 (English)In: IEEE Transactions on Vehicular Technology, ISSN 0018-9545, E-ISSN 1939-9359, Vol. 66, no 7, p. 5675-5688Article in journal (Refereed) Published
Abstract [en]

Recently, millimeter-wave (mmWave) and even terahertz wireless (with higher frequency) networks have attracted significant research interests as alternatives to support the formidable growth of wireless communication services. Normally, directional beamforming (BF) is shown as a promising technique to compensate its high path loss. We focus on mmWave communications and assume that both mmWave base stations (MBSs) and user equipments (UEs) can support directional BF. As mmWave spectrum has short wavelength, massive antenna arrays can be deployed at MBSs to form multiple directional beams through BF training. Then, an MBS can transmit simultaneously to multiple UEs (SUEs) with different beams in the networks. However, the beams that serve different SUEs may transmit (almost) in the same path, especially when SUEs are distributed densely. Thus, they are not in perfect orthogonal beams. Due to the leakage of transmission power, the interference among these beams may be severe. To address this problem, typically the MBS could serve these SUEs in time division multiplex. This will degrade the spectral efficiency. In this context, we investigate the effect of nonorthogonal beam interference and then propose two novel solutions (i.e., dynamic beam switching and static beam selection) to coordinate the transmitting beams effectively. Then, an improved downlink multiuser simultaneous transmission scheme is introduced. In the scheme, an MBS can serve multiple SUEs simultaneously with multiple orthogonal and/or nonorthogonal beams to guarantee SUEs' Quality of Service. The theoretical and numerical results have shown that our scheme can largely improve the performance of the achievable rate and, meanwhile, can serve lots of SUEs simultaneously.

Place, publisher, year, edition, pages
IEEE, 2017
Keyword
Interference, millimeter wave (mmWave), multiuser (MU), nonorthogonal beams
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
urn:nbn:se:kth:diva-211611 (URN)10.1109/TVT.2016.2617083 (DOI)000405691700014 ()
Note

QC 20170811

Available from: 2017-08-11 Created: 2017-08-11 Last updated: 2017-08-11Bibliographically approved
Organisations
Identifiers
ORCID iD: ORCID iD iconorcid.org/0000-0002-5407-0835

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