Distributed Power Control Algorithm for Cognitive Radio Networks Based on Geometric Programming

2014 ◽  
Vol 11 (13) ◽  
pp. 4747-4757
Author(s):  
Lingling Chen
Keyword(s):  
Cognitive Radio ◽  
Power Control ◽  
Cognitive Radio Networks ◽  
Geometric Programming ◽  
Control Algorithm ◽  
Radio Networks ◽  
Distributed Power ◽  
Distributed Power Control ◽  
Power Control Algorithm

scholarly journals A Robust Distributed Power Control Algorithm for Minimum Interference to Primary Users in Underlay Cognitive Radio Networks

2016 ◽  
Vol 12 (12) ◽  
pp. 4
Author(s):  
Lingling Chen ◽  
Xiaohui Zhao ◽  
Shubei Sun ◽  
Yueliang Lu ◽  
Xiaoyue Gong ◽  
...  
Keyword(s):  
Cognitive Radio ◽  
Power Control ◽  
Cognitive Radio Networks ◽  
Control Algorithm ◽  
Radio Networks ◽  
Primary Users ◽  
Distributed Power Control ◽  
Power Control Algorithm ◽  
Underlay Cognitive Radio ◽  
Minimum Interference

<p class="Abstract"><span lang="EN-US">A robust distributed optimal power control (RDPC) scheme under worst case condition is proposed to make primary users (PUs) receive minimum interference generated from all secondary users (SUs) in underlay cognitive radio networks (CRNs). The strategy considers the transmit power of each SU below the maximum allowable power of the devices and interference plus noise ratio (SINR) of each SU under the minimum threshold. Simulation illustrate thatthe RDPC can lead SUs to reduce the interference to PUs, and simultaneously the better meet quality of service (QoS) requirement of SUs in comparison with the distributed power control algorithm (DPC) and the traditional iterative water filling algorithm (IWFA) in time-varying channel environment.</span></p>

Sign in / Sign up

Export Citation Format

Share Document