Enhanced Secure Wireless Information and Power Transfer via Intelligent Reflecting Surface

• Published in: IEEE communications letters Vol. 25; no. 4; pp. 1084 - 1088
• Main Authors: Shi, Weiping, Zhou, Xiaobo, Jia, Linqiong, Wu, Yongpeng, Shu, Feng, Wang, Jiangzhou
• Format: Journal Article
• Language: English
• Published: New York IEEE 01.04.2021; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: Algorithms; Approximation; Array signal processing; Beamforming; Communication system security; Complexity; Computational complexity; Convexity; Energy harvesting; harvested power; Intelligent reflecting surface; Linear programming; MISO communication; Optimization; phase shifts; Power transfer; Reconfigurable intelligent surfaces; secrecy rate; secure transmit beamforming; Wireless communication

In this letter, an intelligent reflecting surface (IRS)-aided secure wireless information and power transfer system is studied. To maximize the harvested power of energy harvesting receiver (EHR), we optimize the secure transmit beamforming at the access point (AP) and phase shifts at the IRS subjec...