Izvorni znanstveni članak
https://doi.org/10.24138/jcomss.v16i1.1030
Spectral and Energy Efficient D2D Communication Underlay 5G Networks: A Mixed Strategy Approach
Selmi Sawsan
; Innov’Com Laboratory, National School of Engineers of Tunis, University of Tunis El Manar, Tunisia
Bouallègue Ridha
; Innov’Com Laboratory, Higher School of Communications of Tunis, Carthage University, Tunisia
Sažetak
4G is now deployed all over the world, but requirements are about to change rapidly face to the exponential growth on devices number, local service applications and spectrum scarce. To deal with that, 5G networks integrated Device To Device (D2D) communication as a key technology in its evolving architecture. From 3GPP Rel-12 to Rel-16, D2D succeeded to improve network capacity by enhancing spectrum reuse, data rates and reducing end-to-end latency. However, despite all these advantages, it implies new challenges in 5G system design as interference, spectrum and energy consumption. As a contribution, we propose in this paper a joint spectrum and energy efficient resource allocation algorithm for D2D communications. This approach maximizes the total spectrum efficiency and reduces UEs power consumption. Contrarily to most of previous studies on resource allocation problems considering only centralized and pure strategies approaches, we propose a distributed algorithm based on new mathematical game theory model as an interpretation of mixed strategy non cooperative game. We extend our previous research, by focusing on power consumption issue. Our proposed solution enhances joint SE/EE tradeoff by minimizing interferences and power consumption via a smart RB allocation. This new approach allows users to adopt more accurate strategies and maximize their utilities according to the random network behavior.
Ključne riječi
5G; Device-to-device communication (D2D); Energy Efficiency (EE); Spectral efficiency; game theory; mixed strategy
Hrčak ID:
236624
URI
Datum izdavanja:
25.3.2020.
Posjeta: 897 *