【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。更多还原

【Abstract】 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.更多还原