Battery-Aware Relay Selection for Energy Harvesting Cooperative Networks
Yu-Hsien Lee, Kuang-Hao Liu

TL;DR
This paper introduces a battery-aware relay selection scheme for energy harvesting cooperative networks, optimizing relay choice based on channel and battery status to improve reliability without fixed power sources.
Contribution
The paper proposes a novel relay selection scheme that jointly considers channel conditions and battery status for energy harvesting relays, enhancing network performance.
Findings
The BARS scheme achieves full diversity order equal to the number of relays.
The scheme effectively balances energy harvesting and relay selection.
Simulation results validate the analytical outage probability analysis.
Abstract
The use of energy harvesting (EH) nodes as cooperative relays is an emerging solution for enabling green wireless systems. In this paper, we consider multiple EH relay nodes harvesting energy from the radio frequency (RF) signal received from the source and use that harvested energy to forward the source information to the destination. Unlike conventional relays with fixed power supplies, EH relays may not be permanently available to assist the source transmission due to the limited energy conversion efficiency, the mismatch between the charging and discharging profiles, and the finite energy storage capacity. We propose the battery-aware relay selection (BARS) scheme, which jointly considers the channel condition and the battery status for relay selection. The outage probability of the proposed scheme is analyzed using a Markov chain model. Simulations are performed to validate the…
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Taxonomy
TopicsEnergy Harvesting in Wireless Networks · Advanced MIMO Systems Optimization · Wireless Power Transfer Systems
