密集异构网络中D2D通信的多对多资源共享  

Many-to-many resource sharing scheme for D2D communication in dense heterogeneous networks

作　　者：李文丽 覃锡忠[1] 贾振红[1] 毕杰 李少华 LI Wen-li;QIN Xi-zhong;JIA Zhen-hong;BI Jie;LI Shao-hua(College of Information Science and Engineering,Xinjiang University,Urumqi 830046,China)

机构地区：[1]新疆大学信息科学与工程学院,新疆乌鲁木齐830046

出　　处：《计算机工程与设计》2021年第6期1517-1525,共9页Computer Engineering and Design

基　　金：新疆维吾尔自治区自然科学基金项目(2018D01C047)。

摘　　要：为解决高接入量、高数据速率需求下的频谱资源短缺问题,将D2D通信技术引入蜂窝网络,研究密集异构网络中D2D通信的多对多资源分配与功率控制问题。多对多频谱共享将显著提高频谱效率,但在密集场景下会产生干扰累积问题。针对干扰累积问题,提出基于集合划分的多对多资源共享方案,提高D2D用户接入率以及最大化系统吞吐量;设计基于连续凸逼近的功率优化算法,降低主次用户间的干扰,提高D2D用户的稳定性。将仿真结果与其它算法进行比较,验证了该算法可有效控制干扰,显著提高系统吞吐量和D2D用户接入率。The rising demand for higher access rate and higher data rate applications will lead to the shortage of available spectrum resources.Therefore the D2D communication technology was introduced into cellular network to study the many-to-many resource allocation and power control of D2D communication in heterogeneous dense network.The access rate of D2D users was significantly increased through many-to-many spectrum sharing,causing accumulative interference.To address the problem of interference accumulation,a many-to-many resource sharing scheme based on set partition was proposed to improve the access rate of D2D users and maximize the system throughput.A power optimization algorithm based on successive convex approximation(SCA)was designed to reduce the interference between primary and secondary users and improve the stability of D2D users.The simulation results were compared with other algorithms,which verified the proposed algorithm could effectively control the interference and significantly improved the system throughput with a high access rate for D2D users.

关 键 词：D2D通信 多对多 资源分配 功率控制 集合划分 连续凸逼近(SCA) 

分 类 号：TN929.5[电子电信—通信与信息系统]