Performance analysis of shadowed-Rice fading channel with cooperative spectrum sensing. Issue 11 (2nd November 2018)

• Record Type: Journal Article
• Authors: Bhatt, Manisha; Soni, Sanjay Kumar
• Is Part Of: International journal of electronics. Volume 105:Issue 11(2018)
• Page Start: 1816
• Page End: 1830
• Publication Date: 2018-11-02
• Subjects: Wireless communication system -- shadowing -- fading channel -- modulation schemes -- average symbol error probability; wireless and optical communication; Electronics -- Periodicals; Electronic control -- Periodicals; 621.381
• DOI: 10.1080/00207217.2018.1482009
• Languages: English
• ISSNs: 0020-7217

Abstract

ABSTRACT: In this paper, the performance analysis of wireless communication system over shadowed-Rice (SR) composite fading channel has been investigated and analysed. The unified analytical expressions of the average symbol error probability (ASEP) for several coherent and non-coherent modulation schemes separately with different constellation sizes are derived for composite fading channel under two different fade mitigation methods, with maximal ratio combining (MRC) microdiversity (Method 1) and MRC applied over the composite fading channel (Method 2). Furthermore, an asymptotic analysis is carried out and a closed-form expression of the ASEP with Method 2 is presented. Analytical expressions of the corresponding average probability of energy detection (PD) are formulated for both the methods. Finally, the derived PD expression is utilised to analyse the performance of cooperative system assuming erroneous feedback channel. Analysis of optimisation of detection threshold as well as number of cognitive users to minimise the total error rate is also carried out. The closed-form expressions are validated by comparing them with exact numerical results and Monte Carlo simulation.