广东工业大学学报2018，Vol.35Issue(1)：29-34,6.DOI:10.12052/gdutxb.170108
无线携能OFDM中继系统的联合资源分配研究
Joint Resource Allocation in SWIPT OFDM Relay Systems
摘要
Abstract
Simultaneous wireless information and power transfer (SWIPT) is an effective way to prolong the operation time of energy-constrained wireless relay systems. A large-scale antenna array based SWIPT orthogonal frequency division multiplexing (OFDM) decode and forward (DF) relay system, in which the source is equipped with large-scale antenna array, is considered. The transmission process is divided into three time-slots. In the first time-slot, the source transmits power to the relay using maximum ratio transmission beamforming; in the second time-slot, the source transmits information to the relay; in the third time-slots, the relay transmits the information to the destination using the harvested energy in the first time-slot. Both the power allocation (PA) over the sub-carriers for information and power transmissions from the source to the relay and from the relay to the destination, and the time allocation (TA) between the first, second and third time-slots are investigated. An optimal joint PA and TA algorithm has been proposed. Computer simulation results shows that the proposed algorithm outperforms some benchmark schemes.关键词
无线携能通信/正交频分复用/大规模天线阵列/解码转发中继/时间和功率分配Key words
SWIPT/OFDM/large-scale antenna array/decode-and-forward relay/time and power allocation分类
信息技术与安全科学引用本文复制引用
何丽君,张广驰,黄高飞,万林青,崔苗,刘怡俊,林凡..无线携能OFDM中继系统的联合资源分配研究[J].广东工业大学学报,2018,35(1):29-34,6.基金项目
国家自然科学基金资助项目(61571138) （61571138）
广东省自然科学基金资助项目(2015A030313481) （2015A030313481）
广东省学科建设专项资金科技创新项目(2013KJCX0060) （2013KJCX0060）
广东省科技计划项目(2016A050503044,2016KZ010101,2016KZ010107, 2016B090904001,2014B090901061,2015B090901060,2015B090908001) （2016A050503044,2016KZ010101,2016KZ010107, 2016B090904001,2014B090901061,2015B090901060,2015B090908001）
广州市科技计划项目(201604020127,2014Y2-00211) （201604020127,2014Y2-00211）
广东工业大学培英育才计划(220411321) （220411321）
