Secrecy Energy Efficiency Maximization in RIS-Aided Networks: Active or Nearly-Passive RIS?

2025/07/09 by Robert Kuku Fotock, Fotock, Robert Kuku, Agbotiname Lucky Imoize +7 · 1 citation
Engineering · #49M20 (Primary) 49M05 #94A05 (Secondary) #Advanced MIMO Systems Optimization #Advanced Wireless Communication Technologies #F.2.1 #F.2.3 #FOS: Computer and information sciences #FOS: Electrical engineering #FOS: Mathematics #G.1.6 #I.6.8 #Information Theory (cs.IT) #Optimization and Control (math.OC) #Signal Processing (eess.SP) #Wireless Communication Security Techniques #electronic engineering #information engineering

paper · pdf · doi:10.48550/arxiv.2507.07241

openalex publication_date 2025/07/09 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

This work addresses the problem of secrecy energy efficiency (SEE) maximization in RIS-aided wireless networks. The use of active and nearly-passive RISs are compared and their trade-off in terms of SEE is analyzed. Considering both perfect and statistical channel state information, two SEE maximization algorithms are developed to optimize the transmit powers of the mobile users, the RIS reflection coefficients, and the base station receive filters. Numerical results quantify the trade-off between active and nearly-passive RISs in terms of SEE, with active RISs yielding worse SEE values as the static power consumed by each reflecting element increases.

Citations

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Cited by

• A Survey on Reconfigurable Intelligent Surfaces in Practical Systems: Security and Privacy Perspectives

Related

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• Energy Efficiency in RIS-Aided Wireless Networks: Active or Passive RIS?
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