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     Research Journal of Applied Sciences, Engineering and Technology


SNR Maximization through Relay Selection in Cognitive Radio Networks

1Kiran Sultan, 1Ijaz Mansoor Qureshi and 2Muhammad Zubair
1Department of Electrical Engineering, Air University, Islamabad, Pakistan
2Department of Electrical Engineering, IIU, Islamabad, Pakistan
Research Journal of Applied Sciences, Engineering and Technology  2013  8:2616-2620
http://dx.doi.org/10.19026/rjaset.5.4705  |  © The Author(s) 2013
Received: August 31, 2012  |  Accepted: October 03, 2012  |  Published: March 15, 2013

Abstract

In this study, we apply Artificial Bee Colony (ABC) optimization to the problem of relay selection and transmit power allocation to selected relays in non-regenerative Relay Assisted Cognitive Radio Networks (RCRNs). The objective of our proposed scheme is to maximize the Signal-to-Noise Ratio (SNR) at the secondary destination while keeping the interference offered to the primary user below a certain threshold level. Simulation results verify the effectiveness of the proposed algorithm.

Keywords:

Cognitive radio network, relay selection, signal-to-noise ratio, transmit power allocation,


References


Competing interests

The authors have no competing interests.

Open Access Policy

This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.

Copyright

The authors have no competing interests.

ISSN (Online):  2040-7467
ISSN (Print):   2040-7459
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