Beamforming and Reflection Coefficient Control for Multiantenna Backscatter Communication With Nonorthogonal Multiple Access

被引:17
作者
Sacarelo, Gerardo [1 ]
Kim, Yun Hee [1 ,2 ]
机构
[1] Kyung Hee Univ, Dept Elect & Informat Convergence Engn, Yongin 17104, South Korea
[2] Kyung Hee Univ, Dept Elect Engn, Yongin 17104, South Korea
基金
新加坡国家研究基金会;
关键词
NOMA; Backscatter; Uplink; Silicon carbide; Optimization; Resource management; Downlink; Backscatter communication; beamforming; nonorthogonal multiple access; reflection coefficient; successive interference cancellation;
D O I
10.1109/ACCESS.2021.3072481
中图分类号
TP [自动化技术、计算机技术];
学科分类号
0812 ;
摘要
For ultralow-power Internet of Things, we consider a monostatic multiantenna backscatter communication network (MBCN) supporting massive devices through nonorthogonal multiple access (NOMA) over space division multiple access (SDMA). For the network, we optimize the transmit beamforming (BF) for signal excitation of a reader, reflection coefficients of devices for backscattering and energy harvesting, and receive BF for information decoding at the reader toward the maximum fairness in data collection. We first show that the optimization problem for the MBCN without successive interference cancellation (SIC) has a similarity with the problem considered for a wireless power communication network but the conventional algorithm is not applicable to the MBCN with SIC. Thus, we propose a new alternating optimization algorithm that is applicable to both problems with and without SIC at a lower complexity. Simulation results show that the proposed algorithm provides a remarkable gain over the conventional one for the MBCN with SIC while exhibiting a similar performance for the MBCN without SIC. In addition, NOMA/SDMA enhanced by the proposed algorithm increases the minimum system throughput as well as the total energy harvested in the network by utilizing limited resources more effectively for a larger number of devices.
引用
收藏
页码:56104 / 56114
页数:11
相关论文
共 46 条
[1]   WIRELESS POWERED COMMUNICATION NETWORKS: AN OVERVIEW [J].
Bi, Suzhi ;
Zeng, Yong ;
Zhang, Rui .
IEEE WIRELESS COMMUNICATIONS, 2016, 23 (02) :10-18
[2]   Practical Non-Linear Energy Harvesting Model and Resource Allocation for SWIPT Systems [J].
Boshkovska, Elena ;
Ng, Derrick Wing Kwan ;
Zlatanov, Nikola ;
Schober, Robert .
IEEE COMMUNICATIONS LETTERS, 2015, 19 (12) :2082-2085
[3]  
Boyd Stephen, 2004, Convex Optimization, DOI DOI 10.1017/CBO9780511804441
[4]   Backscatter Communication and RFID: Coding, Energy, and MIMO Analysis [J].
Boyer, Colby ;
Roy, Sumit .
IEEE TRANSACTIONS ON COMMUNICATIONS, 2014, 62 (03) :770-785
[5]   Coded QAM Backscatter Modulation for RFID [J].
Boyer, Colby ;
Roy, Sumit .
IEEE TRANSACTIONS ON COMMUNICATIONS, 2012, 60 (07) :1925-1934
[6]   Energy-Efficient and Secure Resource Allocation for Multiple-Antenna NOMA With Wireless Power Transfer [J].
Chang, Zheng ;
Lei, Lei ;
Zhang, Huaqing ;
Ristaniemi, Tapani ;
Chatzinotas, Symeon ;
Ottersten, Bjorn ;
Han, Zhu .
IEEE TRANSACTIONS ON GREEN COMMUNICATIONS AND NETWORKING, 2018, 2 (04) :1059-1071
[7]   Resource Allocation in Wireless Powered Communication Networks With Non-Orthogonal Multiple Access [J].
Chingoska, Hristina ;
Hadzi-Velkov, Zoran ;
Nikoloska, Ivana ;
Zlatanov, Nikola .
IEEE WIRELESS COMMUNICATIONS LETTERS, 2016, 5 (06) :684-687
[8]   Wirelessly Powered Backscatter Communications: Waveform Design and SNR-Energy Tradeoff [J].
Clerckx, Bruno ;
Zawawi, Zati Bayani ;
Huang, Kaibin .
IEEE COMMUNICATIONS LETTERS, 2017, 21 (10) :2234-2237
[9]   Modeling and Performance Analysis of Wireless Networks With Ambient Backscatter Devices [J].
Darsena, Donatella ;
Gelli, Giacinto ;
Verde, Francesco .
IEEE TRANSACTIONS ON COMMUNICATIONS, 2017, 65 (04) :1797-1814
[10]   Wireless-Powered Communications With Non-Orthogonal Multiple Access [J].
Diamantoulakis, Panagiotis D. ;
Pappi, Koralia N. ;
Ding, Zhiguo ;
Karagiannidis, George K. .
IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS, 2016, 15 (12) :8422-8436