Joint Uplink and Downlink Resource Allocation for NOMA-Enabled D2D Communications
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影响因子：4.348
DOI码：10.1109/LWC.2021.3063169
所属单位：School of ComputerScience and Information Engineering, Hefei University of Technology
发表刊物：IEEE Wireless Communications Letters
项目来源：National Natural Science Foundation of China under Grants 61971176 and 61901156, Anhui Provincial Na
关键字：D2D, NOMA, resource allocation.
摘要：This letter investigates the joint uplink and downlink resource allocation problem, where the non-orthogonal multiple access (NOMA) technology is applied to enhance device-to-device (D2D) communications. In order to maximize the sum data rate of NOMA-enabled D2D groups while guaranteeing the minimum data rate requirements of both cellular users (CUs) and D2D groups, we first design a subcarrier assignment algorithm to assign the downlink and uplink subcarriers for D2D groups, and then transform the problem into a convex optimization to obtain the optimal power allocation. Simulation results demonstrate the remarkable improvement in terms of data rate of D2D groups by using our algorithms.
合写作者：Yan Wu,Min Peng
第一作者：Caihong Kai
论文类型：期刊论文
通讯作者：Wei Huang
学科门类：工学
文献类型：J
卷号：10
期号：6
页面范围：1247 - 1251
ISSN号：2162-2345
是否译文：否
发表时间：2021-03-02
收录刊物：SCI、EI