Energy and spectral efficiency tradeoff in NOMA: Multi-objective evolutionary approaches
Künye
Çetinkaya, Ş. ve Arslan, H. (2020). Energy and spectral efficiency tradeoff in NOMA: Multi-objective evolutionary approaches. IEEE International Conference on Communications (IEEE ICC) / Workshop on NOMA for 5G and Beyond. Convention Centre Dublin, Ireland, 7-11 June 2020. https://dx.doi.org/10.1109/ICCWorkshops49005.2020.9145261Özet
Non-orthogonal multiple access (NOMA) deployment in future wireless networks has been recently considered a promising radio access technology to enhance spectral efficiency (SE). However, gain in SE comes always with the cost of energy efficiency (EE). In this paper, we investigate the SE and EE tradeoff in downlink NOMA with the consideration of quality of service (QoS) requirements based on three population-based multi-objective evolutionary algorithms (MOEAs): multi-objective particle swarm optimization (MOPSO), non-dominated sorting genetic algorithm-II (NSGA-II) and strength Pareto evolutionary algorithm-2 (SPEA2). The tradeoff is optimized and Pareto optimal solutions are obtained through MOEAs. The effectiveness of the algorithms is evaluated based on the hypervolume metric and the capability of solving multi-objective optimization problems. Simulation results reveal that SPEA2 outperforms NSGA-II and MOPSO. Furthermore, NSGA-II is the loser among all algorithms in terms of finding Pareto optimal results.
Kaynak
IEEE International Conference on Communications (IEEE ICC) / Workshop on NOMA for 5G and BeyondBağlantı
https://dx.doi.org/10.1109/ICCWorkshops49005.2020.9145261https://hdl.handle.net/20.500.12511/6129
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