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Zou, Zhuo
Publications (7 of 7) Show all publications
Jin, Y., Shen, J., Nejad, M. B., Xie, L., Zou, Z., Mao, J., . . . Zheng, L. (2017). A Power management scheme for wirelessly-powered RFID tags with inkjet-printed display. In: 2017 IEEE International Conference on RFID Technology and Application, RFID-TA 2017: . Paper presented at 2017 IEEE International Conference on RFID Technology and Application, RFID-TA 2017, Warsaw, Poland, 20 September 2017 through 22 September 2017 (pp. 180-185). Institute of Electrical and Electronics Engineers (IEEE)
Open this publication in new window or tab >>A Power management scheme for wirelessly-powered RFID tags with inkjet-printed display
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2017 (English)In: 2017 IEEE International Conference on RFID Technology and Application, RFID-TA 2017, Institute of Electrical and Electronics Engineers (IEEE), 2017, p. 180-185Conference paper, Published 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.

Place, publisher, year, edition, pages
Institute of Electrical and Electronics Engineers (IEEE), 2017
National Category
Other Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
urn:nbn:se:kth:diva-221972 (URN)10.1109/RFID-TA.2017.8098640 (DOI)2-s2.0-85040721930 (Scopus ID)9781538618332 (ISBN)
Conference
2017 IEEE International Conference on RFID Technology and Application, RFID-TA 2017, Warsaw, Poland, 20 September 2017 through 22 September 2017
Note

QC 20180130

Available from: 2018-01-30 Created: 2018-01-30 Last updated: 2018-01-30Bibliographically approved
Liu, L., Jin, Y., Liu, Y., Ma, N., Zou, Z. & Zheng, L. (2017). Designing bio-inspired autonomous error-tolerant massively parallel computing architectures. In: 30th IEEE International System on Chip Conference, SOCC 2017: . Paper presented at 30th IEEE International System on Chip Conference, SOCC 2017, Hotel Novotel, Munich, Germany, 5 September 2017 through 8 September 2017 (pp. 274-279). IEEE Computer Society
Open this publication in new window or tab >>Designing bio-inspired autonomous error-tolerant massively parallel computing architectures
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2017 (English)In: 30th IEEE International System on Chip Conference, SOCC 2017, IEEE Computer Society, 2017, p. 274-279Conference paper, Published 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.

Place, publisher, year, edition, pages
IEEE Computer Society, 2017
Series
International System on Chip Conference, ISSN 2164-1676 ; 2017
Keywords
Error-tolerant, Neuromorphic, NoC, Perceptron
National Category
Embedded Systems
Identifiers
urn:nbn:se:kth:diva-225500 (URN)10.1109/SOCC.2017.8226057 (DOI)000427618200051 ()2-s2.0-85044290039 (Scopus ID)9781538640333 (ISBN)
Conference
30th IEEE International System on Chip Conference, SOCC 2017, Hotel Novotel, Munich, Germany, 5 September 2017 through 8 September 2017
Note

QC 20180406

Available from: 2018-04-06 Created: 2018-04-06 Last updated: 2018-04-11Bibliographically approved
Tcarenko, I., Huan, Y., Juhasz, D., Rahmani, A. M., Zou, Z., Westerlund, T., . . . Tenhunen, H. (2017). Smart Energy Efficient Gateway for Internet of Mobile Things. In: 2017 14TH IEEE ANNUAL CONSUMER COMMUNICATIONS & NETWORKING CONFERENCE (CCNC): . Paper presented at 14th IEEE Annual Consumer Communications and Networking Conference (CCNC), JAN 08-11, 2017, Las Vegas, NV (pp. 1016-1017). IEEE
Open this publication in new window or tab >>Smart Energy Efficient Gateway for Internet of Mobile Things
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2017 (English)In: 2017 14TH IEEE ANNUAL CONSUMER COMMUNICATIONS & NETWORKING CONFERENCE (CCNC), IEEE , 2017, p. 1016-1017Conference paper, Published 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.

Place, publisher, year, edition, pages
IEEE, 2017
Series
IEEE Consumer Communications and Networking Conference, ISSN 2331-9852
Keywords
Internet of Things, Internet of Mobile Things, Fog Computing, Smart Gateway, Energy Efficiency
National Category
Energy Systems
Identifiers
urn:nbn:se:kth:diva-217079 (URN)000412117100225 ()978-1-5090-6196-9 (ISBN)
Conference
14th IEEE Annual Consumer Communications and Networking Conference (CCNC), JAN 08-11, 2017, Las Vegas, NV
Note

QC 20171121

Available from: 2017-11-21 Created: 2017-11-21 Last updated: 2017-11-21Bibliographically approved
Mao, J., Zhou, Q., Sarmiento, D., Chen, J., Wang, P., Jönsson, F., . . . Zou, Z. (2016). A hybrid reader tranceiver design for industrial internet of things. Journal of Industrial Information Integration, 2, 19-29
Open this publication in new window or tab >>A hybrid reader tranceiver design for industrial internet of things
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2016 (English)In: Journal of Industrial Information Integration, ISSN 2452-414X, Vol. 2, p. 19-29Article in journal (Refereed) Published
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.

Place, publisher, year, edition, pages
Elsevier, 2016
Keywords
Impulse radio, Industrial integration, Internet-of-Things, Transceiver architecture, Ultra-wideband, Wireless sensor network
National Category
Telecommunications
Identifiers
urn:nbn:se:kth:diva-202184 (URN)10.1016/j.jii.2016.05.001 (DOI)2-s2.0-85010430953 (Scopus ID)
Note

QC 20170228

Available from: 2017-02-28 Created: 2017-02-28 Last updated: 2017-02-28Bibliographically approved
Zou, Z., Gidmark, A., Charalambous, T. & Johansson, M. (2016). Optimal Radio Frequency Energy Harvesting with Limited Energy Arrival Knowledge. IEEE Journal on Selected Areas in Communications, 34(12), 3528-3539, Article ID 7543484.
Open this publication in new window or tab >>Optimal Radio Frequency Energy Harvesting with Limited Energy Arrival Knowledge
2016 (English)In: 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) Published
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.

Place, publisher, year, edition, pages
Institute of Electrical and Electronics Engineers (IEEE), 2016
Keywords
ambient radio frequency energy, Bayesian inference, Energy harvesting, learning, partially observable Markov decision process, Bayesian networks, Chains, Inference engines, Optimization, Radio waves, Sleep research, Markov chain models, Radio-frequency energy, Radio-frequency energy harvesting, Sampling algorithm, Transition probabilities, Markov processes
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
urn:nbn:se:kth:diva-201892 (URN)10.1109/JSAC.2016.2600364 (DOI)000392473600032 ()2-s2.0-85009732782 (Scopus ID)
Note

QC 20170308

Available from: 2017-03-08 Created: 2017-03-08 Last updated: 2017-11-29Bibliographically approved
Zheng, L.-r., Tenhunen, H. & Zou, Z. (2016). Smart electronic systems: Heterogeneous integration of silicon and printed electronics. Wiley-VCH Verlag
Open this publication in new window or tab >>Smart electronic systems: Heterogeneous integration of silicon and printed electronics
2016 (English)Book (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. 

Place, publisher, year, edition, pages
Wiley-VCH Verlag, 2016
Series
Smart Electron. Syst.: Heterog. Integr. of Silicon and Print. Electron.
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
urn:nbn:se:kth:diva-246629 (URN)10.1002/9783527691685 (DOI)
Note

QC 20190617

Available from: 2019-06-17 Created: 2019-06-17 Last updated: 2019-06-17Bibliographically approved
Wang, T., Qian, B., Liu, Y., Zheng, L.-R. -., Huan, Y. & Zou, Z. (2015). Architectural design of radiation-hardened SOC solution for nanosatellite power management. In: Proceedings of the International Astronautical Congress, IAC: . Paper presented at 66th International Astronautical Congress 2015: Space - The Gateway for Mankind's Future, IAC 2015, 12 October 2015 through 16 October 2015 (pp. 7171-7174). International Astronautical Federation
Open this publication in new window or tab >>Architectural design of radiation-hardened SOC solution for nanosatellite power management
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2015 (English)In: Proceedings of the International Astronautical Congress, IAC, International Astronautical Federation, 2015, p. 7171-7174Conference paper, Published 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.

Place, publisher, year, edition, pages
International Astronautical Federation, 2015
Keywords
Architectural design, Battery management systems, Energy management, Fault tolerance, Flash memory, Internet protocols, Ionizing radiation, Nanosatellites, Power management, Programmable logic controllers, Pulse width modulation, Radiation hardening, Reconfigurable architectures, Reconfigurable hardware, Spacecraft power supplies, System-on-chip, Voltage control, Application scenario, In-orbit calibrations, Main error amplifier, Monitor and control, Power management systems, Practical stability, Radiation tolerant system, Total Ionizing Dose, Integrated circuit design
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
urn:nbn:se:kth:diva-202907 (URN)2-s2.0-84994338884 (Scopus ID)9781510818934 (ISBN)
Conference
66th International Astronautical Congress 2015: Space - The Gateway for Mankind's Future, IAC 2015, 12 October 2015 through 16 October 2015
Note

QC 20170307

Available from: 2017-03-07 Created: 2017-03-07 Last updated: 2017-03-07Bibliographically approved
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