Exact outage probability of cognitive relay networks over non-identically distributed Rayleigh fading channels

LUO Liping; CHEN Haiqiang; ZHOU Wei

doi:10.13471/j.cnki.acta.snus.2016.02.007

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Exact outage probability of cognitive relay networks over non-identically distributed Rayleigh fading channels

更新时间：2023-12-11

- Exact outage probability of cognitive relay networks over non-identically distributed Rayleigh fading channels
- Acta Scientiarum Naturalium Universitatis SunYatseni Vol. 55, Issue 2, Pages: 36-41(2016)
- 作者机构：
  
  1. 广西民族大学信息科学与工程学院,广西,南宁,530006
  2. 
- 作者简介：
- 基金信息：
- DOI：10.13471/j.cnki.acta.snus.2016.02.007
  CLC：
- Published：2016，
  
  Published Online：25 March 2016，
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LUO Liping, CHEN Haiqiang, ZHOU Wei. Exact outage probability of cognitive relay networks over non-identically distributed Rayleigh fading channels. [J]. Acta Scientiarum Naturalium Universitatis SunYatseni 55(2):36-41(2016)
DOI：

LUO Liping, CHEN Haiqiang, ZHOU Wei. Exact outage probability of cognitive relay networks over non-identically distributed Rayleigh fading channels. [J]. Acta Scientiarum Naturalium Universitatis SunYatseni 55(2):36-41(2016) DOI： 10.13471/j.cnki.acta.snus.2016.02.007.

摘要

研究了underlay频谱共享模式下认知中继网络的中断性能，推导出独立非同分布Rayleigh衰落信道下次用户中断概率精确解的闭合表达式。通过对具有不同分布参数的Rayleigh衰落信道下系统性能进行MonteCarlo仿真，验证了理论推导的正确性。仿真结果表明，次用户发射机与中继之间(S

→S

)的中继链路以及次用户发射机与主用户接收机之间(S

→P

)的干扰链路——这两种链路的信道状态是影响认知中继网络中断性能的主要因素。

Abstract

The outage performance of the secondary user is investigated for cognitive relay networks with underlay spectrum sharing model. An exact closedform of outage probability is derived over independent but nonidentically distributed (noni.d.) Rayleigh fading channels. The derived formula is verified by MonteCarlo simulations and is served as an effective tool to evaluate the outage performance under different channel parameters. Simulation results show that the channel state of the relaying link (S

→S

) and the interference link (S

→P

) dominate the outage performance in cognitive relay networks.

关键词

认知中继网络underlay频谱共享非同分布Rayleigh衰落信道中断概率精确解

Keywords

cognitive relay networksunderlay spectrum sharingnon-identically distributed Rayleigh fading channelexact form of outage probability

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Outage performance analysis for cognitive relay networks based on SWIPT and NOMA

Related Author

WANG Yujun

LUO Liping

Yujun WANG

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