Citation

Zaino, Rami and Hassan, Mohamed S. and Chuah, Teong Chee (2026) Fairness-Aware Energy-Efficient Two-Way Relaying with Nonlinear WPT: Fixed and Mobile Relays. In: 13th International Conference on Electrical and Electronics Engineering, ICEEE 2026, 27 April 2026 - 29 April 2026, Antalya.

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Abstract

This paper investigates fairness-aware energy efficiency in wirelessly powered two-way relay channels (TWRCs) with a realistic nonlinear energy-harvesting (EH) model. Building on an existing SWIPT framework with fixed and mobile relays, we reuse the optimal rate-region solvers and reinterpret their outputs through two metrics: relay energy efficiency (bits/Joule) and a directional fairness index defined as the ratio of the weaker to the stronger user rates. For the fixed relay, Monte Carlo simulations show that energy efficiency is maximized at a moderately balanced priority weight, whereas perfect fairness is achieved when both users are equally prioritized. For the mobile relay, two representative trajectories are examined. The results reveal that relay mobility can substantially enhance energy efficiency compared with the fixed case, while the fairness behavior as a function of the priority weight remains essentially unchanged across trajectories. The resulting energyefficiency–fairness curves provide compact design insights that complement prior rate-region analyses of nonlinear-EH TWRCs.

Item Type:	Conference or Workshop Item (Paper)
Uncontrolled Keywords:	Simultaneous wireless information
Subjects:	T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK5101-6720 Telecommunication. Including telegraphy, telephone, radio, radar, television
Divisions:	Faculty of Artificial Intelligence & Engineering (FAIE)
Depositing User:	Ms Rosnani Abd Wahab
Date Deposited:	04 Sep 2026 00:53
Last Modified:	04 Sep 2026 00:53
URII:	http://shdl.mmu.edu.my/id/eprint/16659

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