摘要随着智能电网的不断发展,研究作为支撑平台的电力线通信信息系统具有重要意义。对电力线通信系统中动态资源优化分配的现状进行深入的调研并完成了以下工作：
（1）依照电力线信道高频传输特性的参数模型、噪声功率谱等，创建模拟电力线通信平台所需的参数和拟合曲线。
（2）根据系统误比特率性能最优原则设计最小误比特算法，并对其子载波上的比特和功率分配进行仿真分析。
（3）根据注水原理和逐比特加载算法原则设计单用户系统速率自适应分配算法，并在电力线环境下给定的频带宽度内进行比特和功率的仿真分析。
仿真结果表明，论文完成的信道分配算法在降低其计算复杂度的同时，仍然保持其各自资源分配目标的性能最优。61683
毕业论文关键词 电力线通信 信道特性 资源分配 注水原理
毕业设计说明书（论文）外文摘要
Title The Design and Simulation of Algorithms for Resource Optimization Allocation in Power-line Network
Abstract With the development of smart grid,it is of great significance to research power-line communications(PLC) system as a support platform.Based on the impressive research and survey on the development of dynamic resource optimization allocation for PLC systems,the study of this dissertation was focused on:
(1)According to the model of high-frequency transmission characteristics and the noise power spectrum in the power-line channel,the required parameters and fitted curves were obtained in order to create mock PLC environment platform .
(2)A minimum bit error rate(BER) algorithm based on the optimal principles of system BER performance was proposed and tested in power-line channel.
(3)A bit-loading algorithm for rate adaptation based on the comparison of water-filling line was proposed for the single-user PLC systems.and then it was tested in some typical power-line channel environment.
The simulation results indicate that they almost have the optimal performances on themselves resource allocation aims with low implementation complexity.
Keywords power-line communications channel characteristics resource allocation water-filling principle
1 引言 1
1.1 选题背景 1
1.2 研究现状 2
1.3 研究意义 3
1.4 论文的主要研究内容及章节安排 4
2 研究理论和系统仿真工具 5
2.1 电力线通信系统的原理 5
2.2 自适应正交频分复用技术概述 6
2.3 单用户系统自适应资源分配的理论基础 7
2.4 电力线通信系统仿真工具 8
2.5 论文的主要工作和任务 9
2.6 本章小结 9
3 电力线系统通信平台的构建 10
3.1 多用户PLC访问接入网图例分析 10
3.2 电力线系统通信平台的构建 11
3.3 本章小结 14
4 电力线通信系统中的用户资源分配算法设计与仿真 15
4.1 基于系统误比特性能最优的算法设计与仿真 15
4.2 单用户资源分配算法的设计与仿真 电力线网络中资源分配优化算法的设计与仿真:http://www.751com.cn/tongxin/lunwen_67548.html