Peak to average power ratio based spatial spectrum sensing for cognitive radio systems

Iqbal, M. S., Hussain, S. and Ghafoor, A. (2017) Peak to average power ratio based spatial spectrum sensing for cognitive radio systems. Computers and Electrical Engineering, 63, pp. 30-40. (doi: 10.1016/j.compeleceng.2017.09.005)

Abstract

The recent convergence of wireless standards for incorporation of spatial dimension in wireless systems has made spatial spectrum sensing based on Peak to Average Power Ratio (PAPR) of the received signal, a promising approach. This added dimension is principally exploited for stream multiplexing, user multiplexing and spatial diversity. Considering such a wireless environment for primary users, we propose an algorithm for spectrum sensing by secondary users which are also equipped with multiple antennas. The proposed spatial spectrum sensing algorithm is based on the PAPR of the spatially received signals. Simulation results show the improved performance once the information regarding spatial diversity of the primary users is incorporated in the proposed algorithm. Moreover, through simulations a better performance is achieved by using different diversity schemes and different parameters like sensing time and scanning interval.

• Item Type: Articles
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: Hussain, Dr Sajjad
• Authors: Iqbal, M. S., Hussain, S., and Ghafoor, A.
• College/School: College of Science and Engineering > School of Engineering > Electronics and Nanoscale Engineering
• Journal Name: Computers and Electrical Engineering
• Publisher: Elsevier
• ISSN: 0045-7906
• ISSN (Online): 1879-0755
• Published Online: 12 September 2017
• Copyright Holders: Copyright © 2017 Elsevier, Ltd.
• First Published: First published in Computers and Electrical Engineering 63:30-40
• Publisher Policy: Reproduced in accordance with the copyright policy of the publisher.