文档介绍：摘要
论文题目:基于覆盖网络的动态频率分配系统的设计与实现
学科领域:软件工程
申请人:王蒙
指导教师:吴晓军副教授
摘要
随着数字技术和集成电路技术的革新,无线通信技术迅猛发展,频谱资源稀缺导
致的频率冲突和信号干扰,已成为无线通信发展的巨大阻碍。通过对频率进行动态的
协调分配,可以缓解频谱资源紧张的状况。本文目的正是设计一种动态频率分配系统,
实现对有限频率资源的动态共享。
本文研究的频率分配系统以避免台站间产生干扰作为主导思想,结合频率分配业
务的实际需求,对频率分配相关的干扰模型、覆盖网络的组播应用以及多智能体之间
协作的理论进行了分析,提出了基于覆盖网络的动态频率分配的解决方案。通过频率
干扰模型的计算,首先确定在不同工作频率上各个台站间是否可能存在干扰,并在此
基础上定义了用频台站间的频率干扰矩阵,该矩阵将作为频率分配的判定依据。如果
台站间不存在干扰,则基于干扰矩阵中干扰信息按照潜在干扰最小原则进行频率分配。
若经干扰分析确定存在干扰,则采用多层协调模型进行递归频率协调。递归频率协调
是假设将被协调台站当前使用的频率协调给其他台站使用,对其进行重分配的过程。
当递归频率协调失败时,将引入智能体协调的优先级策略进行决策,优先级低的台站
占用的频率资源将被回收,转而分配给优先级高的台站使用。
本文对基于覆盖网络的动态频率分配系统进行了分析和应用研究,并在此基础上
实现了原形系统,通过对原型系统的功能性及结构性测试,验证了本动态频率分配方
案的可行性,达到了预定的设计目标和效果。

关键词:动态频率分配;覆盖网络;智能体协作;频率干扰矩阵;递归频率协调
论文类型:应用研究

I
西安交通大学硕士学位论文
Title: Design and Implementation of Dynamic Frequency Assignment System Based on
work
Professional Fields: Software Engineering
Applicant: Meng Wang
Supervisor: Assoc. Prof. Xiaojun Wu
ABSTRACT
With the technical revolution of both digital technology and integrated device electronics,
munication is undergoing a rapid development. However, frequency confliction
and interference, which result from the very limited frequency resource, have hindered the
development of munication. Dynamic frequency assignment is one of the
measures to alleviate such intensive situation. In order to fulfil the frequency sharing
dynamically, this thesis will design a dynamic frequency assignment system.

In this thesis, the critical idea of the frequency assignment system is frequency interference
avoidance. Based on the virtual requirement of frequency assignment service, this thesis
firstly analyses the related frequency interference model and studies the application-layer
multicast mechanism within work as well as the coordination among multiple
agents. Accordingly, the conception of dynamic frequency assignment system based on
work is designed. With regard to calculated results by the interfere