Joint Uplink and Downlink Resource Allocation for D2D Communication Underlying Cellular Networks
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DOI码：10.1109/WCSP.2018.8555896
所属单位：School of ComputerScience and Information Engineering, Hefei University of Technology
发表刊物：2018 10th International Conference on Wireless Communications and Signal Processing
关键字：Device-to-device communication, uplink and downlink subcarrier assignment, power allocation, maximum weighted bipartite matching
摘要：Device-to-device (D2D) communication is a promising technique to improve the spectral efficiency of cellular networks. In this paper, we investigate the joint uplink and downlink resource allocation problem to maximize the sum data rate of the system while guaranting the quality of service (QoS) for both cellular user equipments (CUEs) and D2D user equipments (DUEs). In particular, we jointly consider both the uplink and downlink subcarrier resources for DUEs to reuse and formulate the optimization problem as a mixed integer nonlinear programming problem (MINLP) which is generally NP-hard. To make the problem tractable, a two-step scheme is proposed. First, the optimal power allocation is formulated as a non-linear programming problem and the optimal solution is achieved by searching among a finite set. Then, a maximum weight bipartite matching scheme is developed to select the best subcarrier for each DUE. Simulation results show that our proposed algorithm can significantly improve the system performance.
合写作者：Lei Xu,Jiaojiao Zhang,Min Peng
第一作者：Caihong Kai
论文类型：会议
学科门类：工学
文献类型：C
ISSN号：2472-7628
是否译文：否
发表时间：2018-10-18
收录刊物：EI