Title: On performance evaluation of OFDM-BPSK and -QPSK over Nakagami-m fading channel with EGC technique

Authors: Neetu Sood; Ajay K. Sharma; Moin Uddin

Addresses: Department of Electronics and Communication Engineering, Dr. B.R. Ambedker National Institute of Technology, Jalandhar 144011, Punjab, India. ' Department of Computer Science Engineering, Dr. B.R. Ambedker National Institute of Technology, Jalandhar 144011, Punjab, India. ' Delhi Technical University, Shahbad Daulatpur, Main Bawana Road, Delhi – 52, India

Abstract: Diversity techniques are known to reduce the deleterious effect of fading and largely deployed in wireless communication. This paper aims at exploring the strengths of equal gain combining (EGC) diversity scheme by evaluating the error performance analysis of OFDM-BPSK and -QPSK-based system in the presence of Nakagami-m fading channels. Previous work carried to evaluate the performance analysis of OFDM system in Nakagami-m fading channel has yield an optimum value of fading parameter m. Here, the extension of same work has been presented by deploying the EGC scheme. Simulated results clearly reveal that the use of EGC schemes improves the system performance by manifolds.

Keywords: OFDM; fading distribution; Nakagami-m channel; Rayleigh fading; equal gain combining; diversity techniques; performance evaluation; fading channels; simulation; othogonal frequency-division multiplexing.

DOI: 10.1504/IJCNDS.2013.050507

International Journal of Communication Networks and Distributed Systems, 2013 Vol.10 No.1, pp.52 - 65

Received: 13 Jan 2011
Accepted: 02 Jul 2011
Published online: 28 Jun 2013 *

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