正交频分多路复用系统中的比例公平调度算法  

Proportional Fair Schedule Algorithms in Orthogonal Frequency Division Multiplexing System

作　　者：周楠[1,2] 徐景[1,2] 张武熊[1,2] 

机构地区：[1]中国科学院上海微系统与信息技术研究所,上海200050 [2]上海无线通信研究中心,上海200050

出　　处：《计算机工程》2009年第23期84-87,共4页Computer Engineering

基　　金：上海市科委基金资助项目"新一代无线通信系统组网关键技术研究"(08DZ2200800);上海市科委国际合作基金资助项目"OFDM系统协同组网技术研究"(08530706200)

摘　　要：为了使调度算法更好地实现高吞吐量、高公平性和低复杂度,修改传统的多载波调度算法,提出4种复杂度较低的新算法。仿真结果表明,在复杂度相似的情况下,新算法的吞吐量和公平性均高于原有算法,可以通过调整参数在公平性和吞吐量之间进行权衡。Schedule algorithm closely relates to the performance of Orthogonal Frequency Division Multiplexing（OFDM） system. The key difficulties lie in achieving high throughput, high GPF and low complexity of the schedule system simultaneously. This paper proposes four low-complexity multicarrier schedule algorithms through revising the conventional multicarrier schedule algorithms. Simulation results show that under the similar complexity, the throughput and GPF of the algorithms are improved in different extent, and weighed by adjusting the variables.

关 键 词：多载波调度 正交频分多路复用 比例公平 

分 类 号：TP311[自动化与计算机技术—计算机软件与理论]