Change search
Refine search result
1 - 7 of 7
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)
  • Disputation date (earliest first)
  • Disputation date (latest 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)
  • Disputation date (earliest first)
  • Disputation date (latest 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. Jin, Y.
    et al.
    Shen, Jue
    KTH, School of Information and Communication Technology (ICT).
    Nejad, M. B.
    Xie, Li
    KTH, School of Information and Communication Technology (ICT).
    Zou, Zhuo
    KTH, School of Information and Communication Technology (ICT). Fudan University, China.
    Mao, Jia
    KTH, School of Information and Communication Technology (ICT).
    Tenhunen, Hannu
    KTH, School of Information and Communication Technology (ICT), Electronics, Integrated devices and circuits.
    Zheng, L.
    A Power management scheme for wirelessly-powered RFID tags with inkjet-printed display2017In: 2017 IEEE International Conference on RFID Technology and Application, RFID-TA 2017, Institute of Electrical and Electronics Engineers (IEEE), 2017, p. 180-185Conference paper (Refereed)
    Abstract [en]

    This work proposes a new power management scheme for wirelessly-powered UHF RFID tags with flexible inkjet-printed Electrochromic (EC) display for human-to-device interaction. EC display on polyimide substrate is integrated at tag side to provide an ambient and direct human-to-device display interface. An aggressive duty-cycling power management scheme with dual supplies is designed to drive the EC display under the tag power budget in microwatt level through RF energy harvesting. In this scheme, energy for display refreshing is accumulated over multiple power management cycles. A single-pixel addressing scheme with minimal pixel size is proposed to further reduce display power and improve tag sensitivity by exploiting EC display bi-stability. The experimental results show that the EC display can be refreshed with the tag sensitivity of -10.5 dBm at 11.7 sec/cm2 update rate.

  • 2. Liu, L.
    et al.
    Jin, Y.
    Liu, Y.
    Ma, Ning
    KTH. Fudan University, China.
    Zou, Zhuo
    KTH. Fudan University, China.
    Zheng, L.
    Designing bio-inspired autonomous error-tolerant massively parallel computing architectures2017In: 30th IEEE International System on Chip Conference, SOCC 2017, IEEE Computer Society, 2017, p. 274-279Conference paper (Refereed)
    Abstract [en]

    The scalable and massively parallel computing systems composed of many processors, which are connected on chips that will become more and more complex and unreliable. This paper presents a bio-inspired error tolerance framework and three design principles based on the Autonomous Error Tolerant (AET) architecture. A nearby error perception mechanism is carefully designed to detect faults and an initiative evolutions strategy is studied to handle unrecoverable errors. A circuit backup mechanism is proposed for generating an effective way by setting the routing rules to bypass the failed link or node to achieve fault tolerance capabilities. The print circuit board (PCB) prototype is designed and implemented based on a reconfigurable and scalable control-centric dual-core embedded processor (ReSC). Different testing programs associating fault-detection or self-backup schemes and routing algorithms are explored in the platform. Experimental results show that error perceptron can detect the faults and reassign the task for other remaining free and healthy AET cell through Network-on-chip (NoC) when faults occur at the AET cell. The system can complete error recovery within 3 seconds, the paper shows the error-tolerant capability of the proposed architecture is better than the conventional multi-modular redundant system.

  • 3.
    Mao, Jia
    et al.
    KTH, School of Information and Communication Technology (ICT), Industrial and Medical Electronics.
    Zhou, Qin
    KTH, School of Information and Communication Technology (ICT).
    Sarmiento, David
    KTH, School of Information and Communication Technology (ICT).
    Chen, Jun
    KTH, School of Information and Communication Technology (ICT).
    Wang, P.
    KTH, School of Information and Communication Technology (ICT).
    Jönsson, Fredrik
    KTH, School of Information and Communication Technology (ICT).
    Xu, L. D.
    Zheng, Li-rong
    KTH, School of Information and Communication Technology (ICT), Industrial and Medical Electronics. State Key Laboratory of ASICs and Systems, Fudan University.
    Zou, Zhuo
    KTH, School of Information and Communication Technology (ICT), Electronic Systems. KTH, School of Information and Communication Technology (ICT), Centres, VinnExcellence Center for Intelligence in Paper and Packaging, iPACK. State Key Laboratory of ASICs and Systems, Fudan University.
    A hybrid reader tranceiver design for industrial internet of things2016In: Journal of Industrial Information Integration, ISSN 2452-414X, Vol. 2, p. 19-29Article in journal (Refereed)
    Abstract [en]

    This paper presents an integrated asymmetric UHF/UWB reader transceiver in 90 nm CMOS technology for industrial enterprise IoT applications. The reader uses UHF transmitter to power up and inventory the tags. Instead of backscattering, tag replies the reader using Ultra-wideband (UWB) pulses, allowing high throughput transmission and precise positioning. Therefore, a UWB receiver is deployed in the proposed reader for data reception and Time-of-Arrival (ToA) estimation using energy detection schemes. The transmitter delivers 160 kb/s ASK modulated data by an integrated modulator and a Digital Controlled Oscillator (DCO). The DCO has 11% tuning range ability to cover different UHF signal channels. On the UWB receiver side, the 3–5 GHz energy detection receiver supports maximum 33 Mb/s data rate in both OOK and PPM modulations. The receiver front-end provides 59 dB voltage gain and 8.5 dB noise figure (NF). Measurement results shows that the receiver achieves an input sensitivity of -79 dBm at 10 Mb/s, and the power consumption of transceiver is 21.5 mW.

  • 4. Tcarenko, Igor
    et al.
    Huan, Yuxiang
    KTH, School of Information and Communication Technology (ICT), Electronics, Integrated devices and circuits.
    Juhasz, David
    Rahmani, Amir M.
    Zou, Zhuo
    KTH, School of Information and Communication Technology (ICT), Centres, VinnExcellence Center for Intelligence in Paper and Packaging, iPACK.
    Westerlund, Tomi
    Liljeberg, Pasi
    Zheng, Lirong
    Tenhunen, Hannu
    KTH, School of Information and Communication Technology (ICT), Electronics, Integrated devices and circuits. KTH, School of Information and Communication Technology (ICT), Centres, VinnExcellence Center for Intelligence in Paper and Packaging, iPACK.
    Smart Energy Efficient Gateway for Internet of Mobile Things2017In: 2017 14TH IEEE ANNUAL CONSUMER COMMUNICATIONS & NETWORKING CONFERENCE (CCNC), IEEE , 2017, p. 1016-1017Conference paper (Refereed)
    Abstract [en]

    Internet of Things (IoT) is a fast developing vision in which physical quantities are digitized, processed and analyzed. Internet of Mobile Things (IoMT) as one of new domains of IoT, due to mobility, requires a more demanding and rigorous solution in many aspects, especially in terms of energy efficiency. We propose a solution consisting of energy efficient and fast hardware platform for building IoMT Fog layer facilities. Experimental results are presented to prove superiority of the proposed hardware in several aspects to popular general purpose platforms.

  • 5. Wang, T.
    et al.
    Qian, B.
    Liu, Y.
    Zheng, L. -R
    Huan, Y.
    Zou, Zhuo
    KTH, School of Information and Communication Technology (ICT).
    Architectural design of radiation-hardened SOC solution for nanosatellite power management2015In: Proceedings of the International Astronautical Congress, IAC, International Astronautical Federation, 2015, p. 7171-7174Conference paper (Refereed)
    Abstract [en]

    With the rapid development of nanosatellite industry, adaptive and ultra-small-scale power management system is demanded for maintenance and sustainable use of space power supply. Radiation-tolerant System-on-Chip (SoC) technology has been recognized as a promising solution but challenges still exist. In this paper, we present a comprehensive architectural design of SoC power solution for nanosatellite applications including space-level 16-bit processor, 8-channel ADC, precision amplifiers, interface units etc. Based on antiradiation requirements, we customize three application scenarios for nanosatellite. It comprises reconfigurable architecture, fault tolerance strategy and in-orbit calibration strategy. The space-level processor named FC-4065 uses these anti-irradiation solutions after Total Ionizing Dose (TID) and Single Event Upset (SEU) tests. Then, by exsiting radiation-tolerant SoC platform, optimized nanosatellite power conditioning procedures are proposed. The modularized power management system is composed of Main Error Amplifier (MEA) IP, Pulse Width Modulation (PWM) IP, Battery Balancing (BB) IP, S3R IP and other soft IP cores. This microsystem can monitor and control the entire nanosatellite power modules without manual operations. Finally, TID trial is carried out in the Shanghai Institute of Applied Physics in China. Practical stability and accuracy of SoC architectures are proven, and suggestions for future nanosatellite power development are discussed based on the spaceflight missions.

  • 6.
    Zheng, Li-rong
    et al.
    KTH.
    Tenhunen, Hannu
    KTH, School of Electrical Engineering and Computer Science (EECS), Electronics, Integrated devices and circuits.
    Zou, Zhuo
    KTH.
    Smart electronic systems: Heterogeneous integration of silicon and printed electronics2016Book (Other academic)
    Abstract [en]

    Unique in focusing on both organic and inorganic materials from a system point of view, this text offers a complete overview of printed electronics integrated with classical silicon electronics. Following an introduction to the topic, the book discusses the materials and processes required for printed electronics, covering conducting, semiconducting and insulating materials, as well as various substrates, such as paper and plastics. Subsequent chapters describe the various building blocks for printed electronics, while the final part describes the resulting novel applications and technologies, including wearable electronics, RFID tags and flexible circuit boards. Suitable for a broad target group, both industrial and academic, ranging from mechanical engineers to ink developers, and from chemists to engineers. 

  • 7.
    Zou, Zhuo
    et al.
    KTH, School of Information and Communication Technology (ICT), Centres, VinnExcellence Center for Intelligence in Paper and Packaging, iPACK.
    Gidmark, A.
    Charalambous, T.
    Johansson, M.
    Optimal Radio Frequency Energy Harvesting with Limited Energy Arrival Knowledge2016In: IEEE Journal on Selected Areas in Communications, ISSN 0733-8716, E-ISSN 1558-0008, Vol. 34, no 12, p. 3528-3539, article id 7543484Article in journal (Refereed)
    Abstract [en]

    We develop optimal sleeping and harvesting policies for radio frequency (RF) energy harvesting devices, formalizing the following intuition: when the ambient RF energy is low, devices consume more energy being awake than what can be harvested and should enter sleep mode; when the ambient RF energy is high, on the other hand, it is essential to wake up and harvest. Toward this end, we consider a scenario with intermittent energy arrivals described by a two-state Gilbert-Elliott Markov chain model. The challenge is that the state of the Markov chain can only be observed during the harvesting action, and not while in sleep mode. Two scenarios are studied under this model. In the first scenario, we assume that the transition probabilities of the Markov chain are known and formulate the problem as a partially observable Markov decision process (POMDP). We prove that the optimal policy has a threshold structure and derive the optimal decision parameters. In the practical scenario where the ratio between the reward and the penalty is neither too large nor too small, the POMDP framework and the threshold-based optimal policies are very useful for finding non-Trivial optimal sleeping times. In the second scenario, we assume that the Markov chain parameters are unknown and formulate the problem as a Bayesian adaptive POMDP and propose a heuristic posterior sampling algorithm to reduce the computational complexity. The performance of our approaches is demonstrated via numerical examples.

1 - 7 of 7
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