Controllable Multiple Active Reconfigurable Intelligent Surfaces Assisted Anti-Jamming Communication

Traditional anti-jamming techniques such as frequency hopping (FH) and direction-sequence spread spectrum (DSSS) are easily targeted by jammers. Inspired the significant advantages of reconfigurable intelligent surfaces (RIS), in order to overcome “double fading”, controllable multiple active RISs proposed explore communication this paper. To verify feasibility RIS, performance RIS is analyzed through theoretical derivation simulation compared with passive RIS. Furthermore, solve optimization problem a multi-active assisted algorithm based on BCD proposed. Theoretical analysis results show that small-scale deployment scenarios better than complexity those semidefinite relaxation (SDR) algorithms.