应急通信网络的动态频谱接入方案研究
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摘要
利用认知无线电的动态频谱接入技术,提高应急通信网络在突发事件中的反应效率已成为无线通信领域的研究热点。对认知无线电的几种动态频谱接入方案进行了探索及研究。由分析可知,选择合适的接入方案,将会形成认知用户间的良性竞争,降低CR业务的通信中断率,从而增大系统的吞吐量,提升整个系统的性能。
It has been a research hotspot in wireless communication field that using the dynamic spectrum access technology of cognitive radio to improve reacting efficiency of emergency communication network in the sudden events.In this article,several dynamic spectrum access schemes of cognitive radio are explored and researched.An appropriate access scheme can promote the establishment of healthy competition between the cognitive users,reduce the communication interruption rate of CR,increase system throughout and improve the whole system performance.
It has been a research hotspot in wireless communication field that using the dynamic spectrum access technology of cognitive radio to improve reacting efficiency of emergency communication network in the sudden events.In this article,several dynamic spectrum access schemes of cognitive radio are explored and researched.An appropriate access scheme can promote the establishment of healthy competition between the cognitive users,reduce the communication interruption rate of CR,increase system throughout and improve the whole system performance.
引文
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[12]李政.借鉴国外经验加强我国应急通信体系建设[J].世界电信,2009(9):44-47.
[13]张坊,郭立新,刘涛,等.汶川地震中无线电应急管理对我们的启示[J].中国无线电,2009(7):13-16.
[2]贺新颖,曾志民,郭彩丽.基于概率密度估计的认知无线电动态频谱接入算法[J].北京邮电大学学报,2009,32(1):108-112.
[3]舒鹏飞,李政,谭学治,等.基于POMDP的认知无线电动态频谱接入算法[J].科学技术与工程,2009,9(12):3288-3291.
[4]邹飞非.认知无线电动态频谱接入及QoS保证技术研究[D].南京:南京邮电大学,2007.
[5]甘晓利,文凯,李校林.感知时间等比缩减的机会频谱接入算法研究[J].电视技术,2010,34(2):10-13.
[6]杨晓燕,杨震,刘善彬.基于预测机制的认知无线电机会频谱接入[J].重庆邮电大学学报:自然科学版,2009,21(1):14-19.
[7]CHEN R,PARK J M,REED J H.Defense against primaryuser emulation attacks in cognitive radio networks[J].IEEE Journal on Selected Areas in Communications SpecialIssue on Cognitive Radio Theory and Applications,2008,26(1):25-37.
[8]CHEN R,PARK J M,HOU Y T,et al.Toward securedistributed spectrum sensing in cognitive radio networks[J].IEEE Communications Magazine Special Issue on Cog-nitive Radio Communications,2008,46(4):50-55.
[9]徐蓉蓉,毛夏,冯伟,等.基于公用无线通信的应急信息交互体系[J].现代电信科技,2009(9):57-73.
[10]张静,汤红波,童珉,等.基于动态频谱接入的应急移动通信系统[J].电信科学,2008(12):16-20.
[11]潘尚国,谭三洪.对新时期建设短波应急通信网的思考[J].中国科技信息,2009(15):48-49.
[12]李政.借鉴国外经验加强我国应急通信体系建设[J].世界电信,2009(9):44-47.
[13]张坊,郭立新,刘涛,等.汶川地震中无线电应急管理对我们的启示[J].中国无线电,2009(7):13-16.
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