Performance analysis of OFDM based 3-hop AF relaying network over mixed Rician/Rayleigh fading channels

Praveen K. Singya, Nagendra Kumar, Vimal Bhatia, Faheem A. Khan

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

In this paper, performance of an orthogonal frequency division multiplexing (OFDM) based 3-hop variable-gain amplify and forward (AF) relaying network is analyzed over independent and non-identically distributed (i.n.i.d.) mixed Rician/Rayleigh fading environment. Analytical expression of outage probability is derived and diversity order of the considered system is found. Further, average symbol error rate (ASER) expressions of general order hexagonal quadrature amplitude modulation (HQAM), general order rectangular QAM (RQAM) and 32-XQAM are derived. A comparative analysis of ASER for different QAM schemes with different constellations is also presented. Ergodic capacity with optimum rate adaptation is also derived for the considered system model. Further, the impact of Rician K-factor on the performance of the considered system is highlighted. Finally, the derived analytical results are verified through Monte-Carlo simulations for different signal-to-noise ratio (SNR) levels.
Original languageEnglish
Pages (from-to)337-347
Number of pages11
JournalAEU - International Journal of Electronics and Communications
Volume93
Early online date22 Jun 2018
DOIs
Publication statusPublished - 1 Sep 2018

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