LTE系统中下行频域资源分配算法的研究  

Research of Downlink Frequency Domain Resource Allocation Algorithm in the LTE System

作　　者：詹超[1,2] 余建囯 

机构地区：[1]武汉邮电科学研究院,武汉430074 [2]北方烽火科技有限公司,北京100085

出　　处：《电信科学》2012年第12期54-58,共5页Telecommunications Science

基　　金：国家科技重大专项基金资助项目(No.2010ZX03005-001)

摘　　要：在LTE系统中,下行频选分配依据子信道质量选取最好的信道来传输业务,提高系统吞吐量。本文从无线资源分配角度出发,针对现有频选算法的不足,提出一种改进型频选与非频选结合分配算法,实现频选资源选取的最优化,同时在资源分配时将频选分配和非频选分配算法进行合并处理,通过比较频选UE度量值和非频选UE度量值来决定当前资源块组(resource block group,RBG)的分配方式。通过系统级仿真可知,在提高资源分配合理性的同时,可以提高系统整体吞吐量。In the LTE system, In order to improve the system throughput, downlink frequency-selective allocating scheme transmits services on the best channels with high subehannel quality. In this paper we propose an improved frequency-selective and non-frequency-selective allocation algorithm, this algorithm can achieve frequency-selective optimization of resources selected simuhaneously in the allocation of resources allocation of frequency-selective and non-frequency-selective allocation algorithm merge processing. Through this system level＇s simulation, system＇s performance is improved.

关 键 词：频选分配 非频选分配 调度度量值 

分 类 号：TN927.2[电子电信—通信与信息系统]