Wirelessly Powered Backscatter Communications: Waveform Design and SNR-Energy Tradeoff

被引：40

作者：

Clerckx, Bruno ^{[1
]}

Zawawi, Zati Bayani ^{[1
]}

Huang, Kaibin ^{[2
]}

机构：

[1] Imperial Coll London, Dept Elect & Elect Engn, London SW7 2AZ, England

[2] Univ Hong Kong, Dept Elect & Elect Engn, Hong Kong, Hong Kong, Peoples R China

来源：

IEEE COMMUNICATIONS LETTERS | 2017年 / 21卷 / 10期

基金：

英国工程与自然科学研究理事会;

关键词：

Backscatter communications; waveform design; SNR-energy tradeoff; wireless power transfer;

D O I：

10.1109/LCOMM.2017.2716341

中图分类号：

TN [电子技术、通信技术];

学科分类号：

0809 ;

摘要：

This letter shows that wirelessly powered backscatter communications is subject to a fundamental tradeoff between the harvested energy at the tag and the reliability of the backscatter communication, measured in terms of SNR at the reader. Assuming the RF transmit signal is a multisine waveform adaptive to the channel state information, we derive a systematic approach to optimize the transmit waveform weights (amplitudes and phases) in order to enlarge as much as possible the SNR-energy region. Performance evaluations confirm the significant benefits of using multiple frequency components in the adaptive transmit multisine waveform to exploit the nonlinearity of the rectifier and a frequency diversity gain.

引用

页码：2234 / 2237

页数：4

共 13 条

[1]

[Anonymous], 2014, Matlab software for disciplined convex programming

[2]

[Anonymous], 2013, Wirelessly powered sensor networks and computational RFID

[3] Backscatter Communication and RFID: Coding, Energy, and MIMO Analysis [J].

Boyer, Colby ;

Roy, Sumit .

IEEE TRANSACTIONS ON COMMUNICATIONS, 2014, 62 (03) :770-785

[4] Power control by geometric programming [J].

Chiang, Mung ;

Tan, Chee Wei ;

Palomar, Daniel P. ;

O'Neill, Daniel ;

Julian, David .

IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS, 2007, 6 (07) :2640-2651

[5]

Clerckx Bruno, 2015, 2015 International Symposium on Wireless Communication Systems (ISWCS). Proceedings, P276, DOI 10.1109/ISWCS.2015.7454345

[6]

Clerckx B., 2016, WSA 2016 20 INT ITG, P1

[7] Waveform Design for Wireless Power Transfer [J].

Clerckx, Bruno ;

Bayguzina, Ekaterina .

IEEE TRANSACTIONS ON SIGNAL PROCESSING, 2016, 64 (23) :6313-6328

[8]

ETSI, 1998, 3ERI085B ETSI EP BRA, P1

[9] Wirelessly Powered Backscatter Communication Networks: Modeling, Coverage, and Capacity [J].

Han, Kaifeng ;

Huang, Kaibin .

IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS, 2017, 16 (04) :2548-2561

[10] Improving magnesium uptake, photosynthesis and antioxidant enzyme activities of watermelon by grafting onto pumpkin rootstock under low magnesium [J].

Huang, Yuan ;

Jiao, Yanyan ;

Nawaz, Muhammad Azher ;

Chen, Chen ;

Liu, Li ;

Lu, Zhen ;

Kong, Qiusheng ;

Cheng, Fei ;

Bie, Zhilong .

PLANT AND SOIL, 2016, 409 (1-2) :229-246

← 1 2 →