基于认知无线电的混合网络最优信道分配

doi:10.13190/j.jbupt.2013.06.008

北京邮电大学学报 ›› 2013, Vol. 36 ›› Issue (6): 37-40.doi: 10.13190/j.jbupt.2013.06.008

基于认知无线电的混合网络最优信道分配

廖勇^1,2, 杨士中¹, 魏海波¹, 王丹¹

1. 重庆大学飞行器测控与通信教育部重点实验室, 重庆 400044;
2. 西安电子科技大学综合业务网理论及关键技术国家重点实验室, 西安 710071

收稿日期:2013-03-28 出版日期:2013-12-31 发布日期:2013-10-08
作者简介:廖摇勇（1982—），男，博士生，E-mail：liaoy@cqu.edu.cn；杨士中（1937—），男，中国工程院院士，教授，博士生导师.
基金资助:
国家自然科学基金项目（61101135）；西安电子科技大学综合业务网理论及关键技术国家重点实验室开放基金项目（ISN13-11）

An Optimal Channel Assignment in Hybrid Network Based on Cognitive Radio

LIAO Yong^1,2, YANG Shi-zhong¹, WEI Hai-bo¹, WANG Dan¹

1. Key Laboratory of Aerocraft Tracking Telemetering and Command and Communication (Chongqing University), Ministry of Education, Chongqing 400044, China;
2. State Key Laboratory of Integrated Services Networks, Xidian University, Xi'an 710071, China

Received:2013-03-28 Online:2013-12-31 Published:2013-10-08

摘要/Abstract

摘要：

在保证主用户服务质量的前提下，将接入点（AP）以认知用户的身份接入到主用户频谱，合理地分享主用户信道资源. 将信道分配问题建模为整数线性规划问题，提出一个混合最优信道分配算法（HOCA），该算法基于一种有权连接图的最小生成树，可以快速准确地在主用户和认知AP频谱中为主用户和认知AP分配干扰最小的信道. 最后，将HOCA算法和其他2种信道分配算法，次最优机会信道分配和次最优信道分配-2算法进行了数值分析，验证了HOCA在吞吐量性能的有效性.

关键词: 信道分配, 干扰信道, 无线局域网, 认知无线电, 整数线性规划

Abstract:

A solution is put forward that makes access point (AP) access into the primary user's channel in the identity of cognitive user under the precondition of guaranteeing primary user's quality of service, so as to share the channel resource of primary user effectively. It models the channel assignment as an integer linear programming issue and puts forward a hybrid optimal channel assignment algorithm (HOCA). Based on minimum spanning tree algorithm of connected weighted graph, the algorithm can allocate the minimum interfered channel for primary user and cognitive AP fast and efficiently in its own frequency band of primary user and cognitive AP. HOCA algorithm and other two channel assignment algorithms, near-optimal opportunistic channel allocation and near optimal frequency assignment-2 are analyzed. It is testified that HOCA algorithm can effectively improve the throughput of cognitive user.

Key words: channel assignment, interference channel, wireless local area network, cognitive radio, integer linear programming

中图分类号:

TN925

廖勇, 杨士中, 魏海波, 王丹. 基于认知无线电的混合网络最优信道分配[J]. 北京邮电大学学报, 2013, 36(6): 37-40.

LIAO Yong, YANG Shi-zhong, WEI Hai-bo, WANG Dan. An Optimal Channel Assignment in Hybrid Network Based on Cognitive Radio[J]. JOURNAL OF BEIJING UNIVERSITY OF POSTS AND TELECOM, 2013, 36(6): 37-40.

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基于认知无线电的混合网络最优信道分配

An Optimal Channel Assignment in Hybrid Network Based on Cognitive Radio

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