电子学报Issue(8)：1628-1633,6.DOI:10.3969/j.issn.0372-2112.2013.08.028
认知无线电网络中基于包调度算法的主动频谱切换
Proactive Spectrum Handover Based on Packet Scheduling Algorithm in Cognitive Radio Networks
摘要
Abstract
In cognitive radio networks ,spectrum handover occurs when a secondary user changes frequency due to the ap-pearance of a primary user .Proactive spectrum handover may result in aggraded bandwidth utilization performance and degraded packet loss probability .Here ,we develop a proactive spectrum handover mechanism by using an efficient packet scheduling algo-rithm ,to reduce unusable channel .It effectively integrates two algorithms :spectrum hole filling algorithm and packet migration algo-rithm ,to minimize packet loss probability and reduce the bandwidth fragment .The efficiency of the mechanism is validated by simu-lation results .关键词
认知无线电网络/频谱切换/包调度Key words
cognitive radio networks/spectrum handover/packet scheduling分类
信息技术与安全科学引用本文复制引用
马彬,廖晓峰,谢显中..认知无线电网络中基于包调度算法的主动频谱切换[J].电子学报,2013,(8):1628-1633,6.基金项目
国家自然科学基金（No ．60973114，No ．61170249，No ．61271259）；重庆市教委科学技术研究（No ．KJ120529，No ．KJ130536）；重庆市计算机网络与通信技术重点实验室基金 （）
