Transceiver design for SWIPT multicasting MIMO relay system

11th Curtin University Technology, Science and Engineering (CUTSE) International Conference

工业技术（总论）

Tiong, T.C.^1

Department of Electrical and Computer Engineering, Faculty of Engineering and Science, Curtin University, CDT 250, Sarawak, Miri

98009, Malaysia^1

关键词: Amplify-and-Forward relays;    Information and power transfers;    Information decoding;    Mean squared error;    Minimum mean-squared error receivers;    Mobile station (MSs);    Multiuser multiple input multiple outputs (MU MIMO);    Semidefinite relaxation;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/495/1/012039/pdf
DOI  :  10.1088/1757-899X/495/1/012039

学科分类：工业工程学

来源: IOP

【 摘 要 】

Radio signals can potentially transmit wireless information and energy simultaneously, hence energy harvesting (EH) through simultaneous wireless information and power transfer (SWIPT) has been proposed for next generation wireless devices. In this paper, the joint base station and relay station transmitter design, and receiver power splitting for a downlink multiuser multiple-input-multiple-output (MU-MIMO) simultaneous wireless information and power transfer (SWIPT) system was investigated. The objective is to minimize the source and relay transmit powers by jointly optimizing the base station precoder, amplify-and-forward relay matrix, the power splitting (PS) ratio, and information decoding mobile stations (MSs) minimum mean squared error (MMSE) receivers subjected to both given mean squared error (MSE) and energy harvesting (EH) constraints. This non-convex problem can be solved by using semi-definite relaxation (SDR). Simulation results show that the proposed technique can harvest sufficient energy to provide additional powers to recharge the IoT devices.