Title: On exploiting MIMO technology for achieving maximum detection probability and mitigating interference in tri-sectored co-operative cognitive radio networks

Authors: Javaid A. Sheikh; Mehboob Ul Amin; Shabir A. Parah; Subba Amin; Ghulam M. Bhat

Addresses: Post Graduate Department of Electronics and Instrumentation, University of Kashmir, Hazratbal, Srinagar, Jammu & Kashmir, India ' Post Graduate Department of Electronics and Instrumentation, University of Kashmir, Hazratbal, Srinagar, Jammu & Kashmir, India ' Post Graduate Department of Electronics and Instrumentation, University of Kashmir, Hazratbal, Srinagar, Jammu & Kashmir, India ' Post Graduate Department of Electronics and Instrumentation, University of Kashmir, Hazratbal, Srinagar, Jammu & Kashmir, India ' University Science Instrumentation Centre, University of Kashmir, Hazratbal, Srinagar, Jammu & Kashmir, India

Abstract: Spectrum sensing for spectrum opportunities and interference detection has been thoroughly incorporated in this paper. A tri-sector based technique has been used to mitigate the interference during spectrum sensing in cognitive radio. In this paper we propose a cooperative framework in which we consider a tri-sectored cellular network served by a base station (primary transmitter) and two types of users (primary users and secondary users). Multiple antennas are placed both on primary users as well as secondary users to enhance the sensing probability of the target. The spectrum is sensed for different combinations of users and power spectral density (PSD) graph is plotted for each combination. We have also calculated capacity and signal-to-interference-noise-ratio (SINR) for tri-sectored cellular model, and the CDF plot depicts the enhancement of capacity and SINR for the proposed model. The results have been verified in terms of various graphs and plots and a few tables.

Keywords: cognitive radio; probability of detection; probability of missed detection; primary user; secondary user; MIMO; multiple-input-multiple-output.

DOI: 10.1504/IJWMC.2017.088540

International Journal of Wireless and Mobile Computing, 2017 Vol.13 No.3, pp.200 - 216

Received: 28 Jul 2017
Accepted: 18 Aug 2017
Published online: 11 Dec 2017 *

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