摘要随着通信技术的不断发展人们对无线网络的服务质量和业务要求也日益提高,因此,人们开始从各个方面寻找提高的方法。OFDM系统以其强大的抗干扰能力、高频谱利用率以及其适合高速传输的优点迅速被人们所接受。59664
本文主要研究了OFDM系统基于理论公平性的资源分配算法。首先简单介绍了无线通信网络的发展历史及一些相关的基础理论知识,包括无线信道衰落、多媒体业务与QoS要求以及无线资源管理与无线资源分配;其次介绍了正交频分复用技术的理论知识和注水算法与在无线通信系统中的注水算法;接下来主要是提出算法并对相应算法并对其进行仿真,比较各算法在相同信噪比下的系统吞吐量、各算法的公平性满足;最后是工作总结与对OFDM技术的展望。
毕业论文关键词:资源分配算法、OFDM、注水算法
毕业设计说明书(论文)外文摘要
Title:Research On Resource Allocation Algorithm Based on Proportional Fairnesss for OFDM System
Abstract
With the continuous development of communication technology ,wireless network quality of service and business requirements are increasing ,people are all working on seeking improve of all aspects .OFDM system with its strong anti-interference ability, high spectrum efficiency, and the advantages of high-speed transmission quickly been accepted.
This paper studies the resource allocation algorithm for OFDM system based on the theory of fairness. First, a brief history of the development of the wireless communication network and some related basic theoretical knowledge, including channel fading, multimedia services ,QoS requirements, as well as radio resource management and radio resource allocation; followed by orthogonal frequency pision multiplexing theoretical knowledge, water-filling algorithm and water-filling algorithm in wireless communication system; the OFDM resource allocation algorithm and simulation. And then I suggest a resource allocation algorithm for OFDM system even emulation for it .Finally, a summary on my own work and outlook for the OFDM technology.
Keywords:Resource allocation algorithm、OFDM System、Water-Filling
摘要 II
Abstract III
目 录 IV
第一章 绪论 1
1.1 无线网络的发展 1
1.2 无线信道衰落 3
1.3 多媒体业务与QoS要求 5
1.4 无线资源分配与管理 6
1.5 本文内容安排 9
第二章 正交频分复用技术和注水算法 10
2.1 OFDM系统的基本原理 10
2.2 注水算法 12
2.3本章小结 16
第三章 OFDM系统比例公平算法 17
3.1 引言 17
3.2 公平调度准则 17
3.3 系统模型和问题描述 20
3.4 比例公平子载波和比特分配算法 21
3.5 性能仿真 23
3.6 本章小结 27
第四章 总结与展望