面向UDN小区边缘用户提升吞吐量的算法研究  

Algorithm for improving throughput of cell edge users in UDN

作　　者：代文丽 葛文萍[1] 张雪婉 吴雄 DAI Wenli;GE Wenping;ZHANG Xuewan;WU Xiong(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：《现代电子技术》2018年第21期25-28,32,共5页Modern Electronics Technique

基　　金：新疆维吾尔自治区自然科学基金项目(2012211A013)~~

摘　　要：为满足超密集网络小区边缘用户低时延高可靠性的通信要求,合理的资源分配和有效的调度算法是有效途径。针对边缘用户存在的强干扰低吞吐量以及等待调度时延过长的问题,提出D-SFR资源分配算法联合TG-PF调度算法的研究方案。仿真分析表明,该方案可根据用户分布情况,充分利用闲置资源提升系统吞吐量与频谱利用率;同时,利用TGPF调度算法的优势,在保证边缘用户调度公平性的基础上,有效提升用户平均吞吐量,保证其服务质量。The algorithm of reasonable resource allocation and effective scheduling can satisfy the communication requirements of cell edge users in the ultra dense network(UDN)for low time delay and high reliability.Since the edge users have the problems of strong interference,low throughput,and long time delay for scheduling waiting,the research scheme combining D-SFR resource allocation algorithm and TG-PF scheduling algorithm is proposed.The simulation analysis results show that the scheme can make full use of idle resource according to user distribution to improve the system throughput and spectrum utilization,and the advantage of TG-PF scheduling algorithm is used to improve the average throughput of the users and ensure the quality of service while maintaining the scheduling fairness of edge users.

关 键 词：超密集网络 边缘用户 动态软频率复用 吞吐量提升 D.SFR资源分配 频谱利用率 

分 类 号：TN929.5-34[电子电信—通信与信息系统]