Mode Selection and Resource Allocation for Deviceto-Device Communications in 5G Cellular Networks  

作　　者：Fan Jiang Benchao Wang Changyin Sun Yao Liu Rong Wang 

机构地区：[1]School of Communication and Information Engineering, Xi'an University of Posts and Telecommunications [2]Department of Computer Science and Engineering, University of South Florida [3]Shaanxi Radio Monitoring Station,State Radio Regulatory of China

出　　处：《China Communications》2016年第6期32-47,共16页中国通信（英文版）

基　　金：supported by the National Natural Science Foundation of China(No.61501371);National 863 High Tech R&D Program of China(project number:2014AA01A703);National Science and Technology Major Project of the Ministry of Science and Technology of China(project number:2014ZX03001025-006);The international Exchange and Cooperation Projects of Shaanxi Province(project number:2016KW-046)

摘　　要：To meet the increasing demand of wireless broadband applications in future 5G cellular networks, Device-to-Device(D2D) communications serve as a candidate paradigm to improve spectrum efficiency. Considering the challenges after D2 D transmission is introduced for future cellular networks, this paper deals with mode selection and resource allocation issues related with D2 D communications. First, we propose a mode selection scheme which aims at guaranteeing the transmission of cellular users and also considering the potential interference. We analyze the condition under which D2 D underlay mode should be used. Second, we answer the question of "how to effectively reuse cellular resource once underlaying mode is adopted". We further present a resource allocation scheme that focuses on minimizing overall interference as well as a power control method to improve the performance of D2 D systems. Simulation results demonstrate that system parameters greatly affect the switching condition of mode selection and probability of choosing underlay mode. Furthermore, for D2 D underlaying scenario, the proposed resource allocation algorithm guarantees the transmission of cellular users with consideration of transmission requirements of D2 D users. Hence, the proposed scheme can achieve better user experience.To meet the increasing demand of wireless broadband applications in future 5G cellular networks, Device-to-Device（D2D） communications serve as a candidate paradigm to improve spectrum efficiency. Considering the challenges after D2 D transmission is introduced for future cellular networks, this paper deals with mode selection and resource allocation issues related with D2 D communications. First, we propose a mode selection scheme which aims at guaranteeing the transmission of cellular users and also considering the potential interference. We analyze the condition under which D2 D underlay mode should be used. Second, we answer the question of ＂how to effectively reuse cellular resource once underlaying mode is adopted＂. We further present a resource allocation scheme that focuses on minimizing overall interference as well as a power control method to improve the performance of D2 D systems. Simulation results demonstrate that system parameters greatly affect the switching condition of mode selection and probability of choosing underlay mode. Furthermore, for D2 D underlaying scenario, the proposed resource allocation algorithm guarantees the transmission of cellular users with consideration of transmission requirements of D2 D users. Hence, the proposed scheme can achieve better user experience.

关 键 词：device-to-device communication mode selection resource allocation power control 

分 类 号：TN929.5[电子电信—通信与信息系统]