非实时业务下认知网络的频谱共享  

A Spectrum Sharing Algorithm for Non-real-time Service in Cognitive Radio Networks

作　　者：齐博[1] 张陆勇[1] 张秋月[2] 赵小川[1] 

机构地区：[1]北京邮电大学,北京100876 [2]中国航天科工集团第三十三研究所,北京100074

出　　处：《无线电工程》2010年第1期1-3,6,共4页Radio Engineering

摘　　要：根据某种特定业务的QoS要求制定相应的频谱共享策略,可以在这种情况下提高系统的频谱利用率,增加用户平均收益。对非实时业务下的认知网络的频谱共享策略进行了研究,考虑各非授权用户业务量和信道质量对系统频谱效率的影响,提出了一种非实时业务专用的NRT-dedicate频谱共享算法。仿真结果表明,在非实时业务情况下,该算法可以获得比通用业务的频谱共享算法的频谱利用率。In order to improve the spectrum efficiency and average profile of the users,cognitive radio network needs a special spectrum sharing scheme when the users in the network have a special kind of service with a special QoS.In this paper,the spectrum sharing scheme in the scenario of the users having non-real-time service in the cognitive radio network is researched.A spectrum sharing algorithm is proposed for non-real-time service,according to the service quantity and the spectrum quality,named NRT-dedicate spectrum sharing algorithm. The simulation showed that the proposal algorithm is more efficiency than common spectrum sharing algorithm for non-real-time service.

关 键 词：非授权用户 非实时业务(NRT) 自适应传输速率 频谱质量 

分 类 号：TN927.2[电子电信—通信与信息系统]