认知无线电网络信道交汇研究综述

发布时间：2018-01-25 22:41

本文关键词： 认知无线电认知无线电网络动态频谱接入信道交汇组网　出处：《软件学报》2014年03期 　论文类型：期刊论文

【摘要】：认知无线电技术被认为是解决目前频谱资源利用率低下问题最有前景的技术,基于该技术,认知无线电网络采用动态频谱接入方式有效地提高了授权频段的利用率.然而,动态变化的信道可用性极大地增加了认知无线电网络组网的难度.信道交汇旨在为用户通信提供公共传输媒介,是实现无线网络组网的基础.介绍了认知无线电网络信道交汇的基本概念和特点,并阐述了信道交汇策略设计面临的挑战以及应考虑的性能指标.提出了信道交汇策略的分类标准和系统模型,根据该分类标准,详细剖析了当前信道交汇策略相关的研究工作.最后,讨论了认知无线电网络信道交汇研究的开放性问题,以期为未来的研究指出可能的方向和重点.
[Abstract]:Cognitive radio technology is considered to be the most promising technology to solve the problem of low utilization of spectrum resources. The use of dynamic spectrum access in cognitive radio networks effectively improves the utilization of authorized frequency bands. The dynamic channel availability greatly increases the difficulty of the cognitive radio network. The channel intersection is designed to provide the public transmission medium for the user communication. This paper introduces the basic concept and characteristics of cognitive radio network channel intersection. The challenges of channel intersection policy design and the performance index should be considered are discussed. The classification criteria and system model of channel intersection policy are proposed. The current research work on channel intersection strategy is analyzed in detail. Finally, the openness of cognitive radio network channel intersection research is discussed in order to point out the possible direction and emphasis for future research.
【作者单位】：并行与分布式处理国家重点实验室(国防科学技术大学);解放军外国语学院语言工程系;
【基金】：国家自然科学基金(61070203,61202484)
【分类号】：TN925
【正文快照】： 随着无线网络技术和应用的迅猛发展,无线频谱资源已分配殆尽,使得新兴无线应用很难分配到专属的无CNKI网络优先出版:2013-12-05 13:37,http://www.cnki.net/kcms/detail/11.2560.TP.20131205.1337.002.html刘权等:认知无线电网络信道交汇研究综述607线频谱资源.然而,通过大量

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