Frontiers of Data and Computing ›› 2023, Vol. 5 ›› Issue (6): 173-184.

CSTR: 32002.14.jfdc.CN10-1649/TP.2023.06.016

doi: 10.11871/jfdc.issn.2096-742X.2023.06.016

Previous Articles    

Research on D2D Joint Mode Selection and Resource Allocation

ZHENG Yijia*(),DU Yongwen,HUANG Ju,ZHANG Xiquan   

  1. School of Electronic and Information Engineering, Lanzhou Jiaotong University, Lanzhou, Gansu 730070, China
  • Received:2022-07-29 Online:2023-12-20 Published:2023-12-25

Abstract:

[Objective] In the case of relatively scarce communication resources, the D2D direct reuse technology of cellular network resources may cause numerous technical problems such as interference management, communication mode selection, and resource allocation. [Methods] This paper studies the scheme of the combination of mode selection, channel distribution, and power control. Because optimizing the combination scheme is an NP-hard problem, this paper divides the optimization problem into two sub-problems: one is to select an appropriate communication mode and allocate reasonable channel resources for each D2D user, and the other is to optimize the power for D2D users and honeycomb users by the improved gray wolf algorithm. The goal of this approach is to improve the overall system throughput and reduce the interference. [Results] The experimental results in different scenarios show that this approach can effectively reduce the interference and improve the system throughput. The improved gray wolf algorithm has increased the average throughput by about 4% for this solution. [Limitations] The Gray Wolf Optimization Algorithm is continuously evolving and introduces certain limitations. [Conclusions] The subsequent work will continue to explore and consider the network status and the user mobility, improving both performance and throughput of the system.

Key words: cellular network, D2D, mode selection, resource allocation, gray wolf algorithm