Analysis of Underlay Cognitive Radio Networks Based on Interference Cancellation Mechanism  

作　　者：Lei Wang Jian Liu Alan Yang 

机构地区：[1]School of Computer&Communication Engineering,University of Science and Technology Beijing,Beijing,100083,China [2]Amphenol AssembleTech,Houston,TX 77070,US.

出　　处：《Journal of Information Hiding and Privacy Protection》2019年第3期119-133,共15页信息隐藏与隐私保护杂志（英文）

摘　　要：In this paper,we study the state-dependent interference channel,where the Rayleigh channel is non-causally known at cognitive network.We propose an active secondary transmission mechanism with interference cancellation technique according to the ON-OFF status of primary network.the secondary transmission mechanism is divided into four cases according to the active state of the primary user in the two time slots.For these interference cases,numerical results are provided to show that active interference cancellation mechanism significantly reduces the secondary transmission performance in terms of secondary outage probability and energy efficiency.

关 键 词：Cognitive radio Markov ON-OFF state outage probability energy efficiency. 

分 类 号：TN9[电子电信—信息与通信工程]