SPECTRUM DECISION BASED ON UP-TIME RADIO OF SPECTRUM

摘要：

CR technology enables CR users the capability to share the wireless channel with licensed users in an opportunistic manner. In cognitive network, once the primary user appears on the spectrum during the entire communication of the CR user, the CR user has to vacate the channel and switch to another one. In this paper, a Spectrum Decision based on Up-Time Ratio of spectrum (SDUTR）is presented, which puts key focus on reducing collision on the licensed spectrum between the primary user and the secondary one. Moreover, the SDUTR algorithm can be operated over heterogeneous spectrum bands. Simulations show that total broadcasting delay and information redundancy of the network are reduced as compared to selective broadcasting 7.

关键词： Cognitive Network Utility Primary User Activity Spectrum Decision heterogeneous spectrum bands

作者: Yanni Li Dongmei Zhang Gengyu Wei

作者单位: Beijing University of Posts and Telecommunications, Beijing 100876, China

会议类型: 国际会议

会议名称: 2009 IEEE International Conference on Network Infrastructure and Digital Content(2009年IEEE网络基础设施与数字内容国际会议 IEEE IC-NIDC2009)

会议地点: 北京

会议语种:英文

页码: 6-10

在线出版日期: 2009-11-06（万方平台首次上网日期，不代表论文的发表时间）