Outage performance of cognitive radio wireless network with secondary relaying
Outage performance of cognitive radio wireless network with secondary relaying
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DOI：
10.1109/iccsii.2012.6454571
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发表时间：
2012-12
期刊：
影响因子：
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通讯作者：
Faisal Ahmad Khan;T. Ratnarajah;Z. Ding
中科院分区：
文献类型：
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作者：
Faisal Ahmad Khan;T. Ratnarajah;Z. Ding
在本文中，我们研究了认知无线电无线网络的中断性能，其中辅助接收器不会受到主要用户的任何干扰。特别是，我们考虑一个系统模型，该模型具有一对主发射器和接收器以及一对辅助发射器和接收器，并且许多附近的空闲辅助用户充当中继。辅助中继有助于维持甚至改善主用户的中断性能，同时促进辅助用户的同步传输。我们得出主要和次要链路的中断性能的分析结果，以证明所提出的协议的效率。仿真结果表明，所提出的协议为主要用户实现了大的遍历容量和分集增益，同时为次要用户实现了大量的中断容量。
In this paper, we investigate the outage performance of cognitive radio wireless network where secondary receiver does not suffer any interference from the primary user. In particular, we consider a system model that has a pair of primary transmitter and receiver as well as a pair of secondary transmitter and receiver, with a number of nearby idle secondary users acting as relays. Secondary relays help to maintain or even improve the outage performance of primary user while facilitating simultaneous secondary user transmission. We derive analytical results for the outage performance of primary and secondary link to prove the efficiency of proposed protocol. Simulations results demonstrate that the proposed protocol achieves large ergodic capacity and diversity gain for primary user while achieving substantial outage capacity for secondary user.