Achieving Full Power-Supplied Relay Performance with Hybrid Power-Supplied and Energy-Harvesting Relays

Project Details

• Student(s): Maroun Eid and Charbel Kaddoum
• Advisor(s): Dr. Chadi Abou Rjeily
• Department: Electrical & Computer
• Academic Year(s): 2025-2026

Abstract

This work considers a parallel-relaying decode-and-forward (DF) hybrid cooperative network comprising KEH energy-harvesting (EH) relays and KPS power-supplied (PS) relays. The PS relays are connected to permanent power supplies while the EH relays rely solely on the energy of the signal transmitted by the source node where this energy is harvested and stored in finite-size energy buffers. With the target of determining the conditions for outage equivalence of the hybrid network with respect to a full PS network with KEH +KPS relays, we prove that the deployment of at least one PS relay (i.e. KPS ≥ 1) is sufficient to achieve this equivalence asymptotically. The performance analysis is based on a Markov chain evaluation associated with a self-consistent mean-field decoupling framework. This analysis also shows that the aforementioned equivalence is possible for any buffer size exceeding one. Extensive simulations confirm the analytical results and demonstrate the outage equivalence.