A Prediction Approach for MAC layer Sensing in Cognitive Radio Networks

摘要：

In cognitive radio (CR) networks, spectrum sensing has been recognized as the crucial issue of achieving the secondary usage of spectrum. The physical (PHY) layer sensing focuses on how to detect the presence of primary user (PU) signals rapidly and robustly, while the medium access control (MAC) layer sensing concentrates on designing the coordination and communication protocols for secondary users (SUs). In this paper, we address the issues for MAC layer sensing and propose an exponential weighted moving average (EWMA) based approach to predict the spectrum occupancy information. Numerical results show our prediction scheme performs well in the considered scenario. Based on the predicted spectrum occupancy information, the prospect of better scheduling of the MAC layer sensing can be achieved.

关键词： Cognitive radio networks MAC layer sensing prediction EWMA spectrum occupancy information

作者: Zhiyuan Shi Xueyuan Jiang Lianfen Huang

作者单位: Department of Electronic Engineering,Xiamen University,Xiamen,Fujian,361005,China. Department of Communication Engineering,Xiamen University,Xiamen,Fujian,361005,China.

会议类型: 国际会议

会议名称: The IET 2nd International Conference on Wireless,Mobile & Multimedia Networks(第二届IET国际无线移动多媒体网络会议)

会议地点: 北京

会议语种:英文

在线出版日期: 2008-10-12（万方平台首次上网日期，不代表论文的发表时间）