重庆邮电大学学报（自然科学版）2012，Vol.24Issue(1)：1-7,7.DOI:10.3979/j.issn.1673-825X.2012.01.001
认知无线电网络中的动态权值频谱切换判定算法
Spectrum handoff decision algorithm with dynamic weights for cognitive radio networks
摘要
Abstract
To overcome the problem of coverage of underlay in cognitive radio networks, a multi-cell spectrum handoff scheme based on evaluation of coverage of underlay is proposed. Simple additive weights decision algorithm with dynamic weights ( SAW-DW) in spectrum handoff is used to select a best target cell for continuing data transmission when secondary users exceed underlay constraint. Theoretical analysis and simulation results show that the scheme and algorithm can reduce probability of handoff failure and probability of service interrupt of secondary users and improve quality of service of secondary users.关键词
认知无线电/频谱切换/衬垫传榆/判定算法/动态权值Key words
cognitive radio/spectrum handoff/underlay/decision algorithm/dynamic weights分类
信息技术与安全科学引用本文复制引用
谢显中,杨光,马彬..认知无线电网络中的动态权值频谱切换判定算法[J].重庆邮电大学学报（自然科学版）,2012,24(1):1-7,7.基金项目
国家自然科学基金(60872037) （60872037）
重庆市自然科学基金(CSTC 2010BB2415,CSTC2011JJA40006) （CSTC 2010BB2415,CSTC2011JJA40006）
重庆市教委科学研究计划基金(KJ110530) （KJ110530）
