Adaptive Cooperative MAC with Energy Harvesting for Multi-Objective Performance in Wireless Ad-hoc Networks
DOI:
https://doi.org/10.63746/njtd.v22i4.3275Keywords:
CMAC protocol, Power splitting relaying, Relay selection, Multi-objective optimizationAbstract
Energy harvesting (EH) offers a sustainable solution for powering energy-constrained wireless devices, reducing transmission costs, and extending network lifespan. However, existing cooperative medium access control (CMAC) protocols, which focus on single-objective optimization, struggle to balance critical trade-offs under dynamic network conditions. To address this limitation, an adaptive CMAC protocol that integrates EH relaying to optimize multi-objective performance (MOEH-CMAC) in wireless ad-hoc networks was proposed. A multi-objective optimization framework to jointly maximize spectral efficiency and network lifetime for EH-enabled relays using a power-splitting relaying (PSR) mechanism, while adhering to practical network constraints was formulated. The proposed solution was evaluated across diverse network scenarios to ensure efficient MAC-layer cooperation. Simulations in MATLAB environment revealed that the proposed MOEH-CMAC achieves 91.45% and 89.52% higher energy efficiency compared to EECMAC and FCGMAC, respectively. Additionally, it shows 31.73% and 56.36% improvements in network lifetime over EH-CMAC and EECMAC, along with a 5% increase in saturated throughput against EHCMAC protocol.
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