摘要
为了解决认知无线网络资源管理中感知信息传输时延大、效率低以及易受干扰等问题,构建了一种具有较低功率谱密度和较强抗干扰能力的宽带公共协同信道(common coordinate channel,CCC),实现了感知信息的即时、可靠交互。借助干扰温度的概念,以城市环境为例,重点分析了宽带CCC信道对主用户的干扰,得到了不同干扰门限、不同供给负荷以及信道带宽下,次用户与主用户之间的干扰概率。理论分析和仿真结果表明,对常见的窄带系统,利用该方案可以将CCC信道对主用户的干扰控制在较低的范围内。
To improve the performance of resource management of the cognitive radio networks,a new wide-band common coordinate channel（CCC） with lower transmitting power and better anti-jamming ability is presented.Instantaneous and reliable sensing information exchange is carried out through this channel.According to interference temperature,the interference between the CCC and the primary user is analyzed in urban areas.Then the relations of the jamming probability and the other parameters are gotten.Analysis and simulation results show that for the common narrow band system,the lower jamming probability can be obtained with this scheme.
出处
《系统工程与电子技术》
EI
CSCD
北大核心
2010年第5期1078-1082,共5页
Systems Engineering and Electronics
基金
中国博士后科学基金(20080441320)资助课题
关键词
认知无线网络
公共协同信道
干扰温度
cognitive radio network
common coordinate channel（CCC）
interference temperature
