XIE Xian-zhong, YANG Zhi-hua, ZHENG Yi. New cognitive radio channel model and the analysis of its capacity[J]. 2010, 31(6): 136-140.DOI:
新的感知无线电信道模型及其容量分析
摘要
将新的感知无线电信道模型将交织型信道模型和干扰型信道模型结合在一起
引入开关的概念
将频谱空洞的检测融合在信道中
形成有部分主用户信息的感知无线电双用户信道模型。在这种新的信道模型中
将主用户和感知用户之间的信道看作是一个压缩信道
引入压缩率
感知用户通过一个压缩信道来感知主用户的部分信息。针对新的感知信道模型
分析并计算了相应信道容量。最后
仿真验证了理论模型的有效性和容量优势。
Abstract
New cognitive radio channel model is the combination of the interweave channel and the interference channel.By introducing the switch concept
the spectrum hole sensing was combined the channel model.So a new cognitive radio two-user channel model with partial knowledge of the primary messages at the cognitive transmitter was proposed.First
the channel between the primary user and the second user was modeled as a compression channel and introduced the compression rate.Then
the channel capacity was analyzed and calculated.Finally
numerical results illustrate the validity of the new channel model and the advantage of its capacity.