Analysis of Selective-Decode and Forward Relaying Protocol over κ-μ Fading Channel Distribution

• Published in: Journal of Telecommunications and Information Technology 2020 (1), p.21-30
• Main Authors: Shankar, Ravi, Bhardwaj, Lokesh, Mishra, Ritesh Kumar
• Format: Article
• Language: English
• Subjects: channel fading; channel state information; Computer simulation; Distribution functions; Fading; Line of sight; Probability density functions; Relay systems; Relaying; relaying protocol; selective decode and forward; Signal to noise ratio; symbol error rate
• ISSN: 1509-4553; 1899-8852
• DOI: 10.26636/jtit.2020.135919

In this work, the performance of selective-decode and forward (S-DF) relay systems over κ-p fading channel conditions is examined in terms of probability density function (PDF), system model and cumulative distribution function (CDF) of the κ-p distributed envelope, signal-to-noise ratio and the techniques used to generate samples that rely on κ-p distribution. Specifically, we consider a case where the sourceto-relay, relay-to-destination and source-to-destination link is subject to independent and identically distributed κ-p fading. From the simulation results, the enhancement in the symbol error rate (SER) with a stronger line of sight (LOS) component is observed. This shows that S-DF relaying systems may perform well even in non-fading or LOS conditions. Monte Carlo simulations are conducted for various fading parameter values and the outcomes turn out to be a close match for theoretical results, which validates the derivations made.