Journal on Communications ›› 2022, Vol. 43 ›› Issue (7): 21-30.doi: 10.11959/j.issn.1000-436x.2022144

• Papers • Previous Articles     Next Articles

Double-RIS assisted anti-jamming communication method based on joint active and passive beamforming optimization

Haiyan GUO1, Zhen YANG1, Yulong ZOU1, Bin LYU1, Yuntian FENG2, Yujuan ZHAO3   

  1. 1 School of Communications and Information Engineering, Nanjing University of Posts and Telecommunications, Nanjing 210003, China
    2 State Key Laboratory of Complex Electromagnetic Environment Effects on Electronics and Information System (CEMEE), Luoyang 471003, China
    3 School of Mathematics and Information Technology, Jiangsu Second Normal University, Nanjing 211200, China
  • Revised:2022-06-17 Online:2022-07-25 Published:2022-06-01
  • Supported by:
    The National Natural Science Foundation of China(62071242);The National Natural Science Foundation of China(62071253);The National Natural Science Foundation of China(61901229);The National Natural Science Foundation of China(62071005);The Open Research Fund of the State Key Laboratory of Complex Electromagnetic Environment Effects on Electronics and Informa-tion System (CEMEE)(CEMEE2021Z0102B);The Incubation Project of Nanjing University of Posts and Telecommunications for National Natural Science Foundation of China(NY220179)

Abstract:

For double-reconfigurable intelligent surface (RIS) assisted wireless communication system, an anti-jamming communication method based on joint active and passive beamforming optimization was proposed.In order to maximize the received signal-to-interference-and-noise ratio (SINR), a joint active and passive beamforming optimization problem was formulated.By using the alternating optimization (AO) algorithm, the formulated joint optimization problem was divided into three subproblems, which were solved iteratively in an alternating manner.Specifically, the quasi-optimal passive beamforming vector of each RIS was obtained by applying the semidefinite relaxation (SDR) algorithm, and the optimal active beamforming vector of the BS was obtained based on the generalized Rayleigh quotient.Simulation results demonstrate that the proposed method outperforms the traditional single-RIS ant-jamming communication methods.

Key words: reconfigurable intelligent surface, anti-jamming communication, beamforming, alternating optimization

CLC Number: 

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