摘要
研究了基于认知无线电技术的动态频谱共享,基于重复博弈理论设计了一种分布式动态信道接入和功率分配算法.在不影响主用户通信的情况下,每个认知用户能根据自己的服务质量(QoS)需求和本地信息进行分布式信道选择和功率分配,在系统频谱效率和业务QoS之间进行有效折中.该算法具有较好的收敛性,能最大程度地满足用户的业务需求,更适用于异构网络和业务的应用.
A repeated game theory based distributed dynamic channel selection and power control algo- rithm for dynamic spectrum sharing in cognitive radio network was proposed. Without interfering with primary users, each cognitive user could select channels along with transmission power when consider- ing its specific quality of service（QoS） requirements and local information. The proposed algorithm can make an efficient trade-off between system spectrum efficiency and user QoS requirement, and exhibits rapid convergence. It can meet the user-specific QoS requirement to the full extent and especially suites for heterogeneous networks.
出处
《北京邮电大学学报》
EI
CAS
CSCD
北大核心
2009年第1期69-72,共4页
Journal of Beijing University of Posts and Telecommunications
基金
国家自然科学基金项目(60572020)
关键词
认知无线电
动态频谱共享
博弈论
cognitive radio
dynamic spectrum sharing
game theory
