Analysis of Underlay Cognitive Radio Networks Based on Interference Cancellation Mechanism

• 作者: Alan Yang Jian Liu Lei Wang
• 来源期刊: 信息隐藏与隐私保护杂志(英文)
• 学科: 工学
• 关键词: COGNITIVE radio MARKOV ON-OFF state OUTAGE probability energy efficiency.
• 年，卷（期）: 2019,（3）
• 页码范围: 119-133
• 页数: 15页
• 分类号: TN9

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.