On the Performance of Dual-Hop Variable-Gain AF Relaying with Beamforming over η-µ Fading Channels

Ayaz HUSSAIN  Sang-Hyo KIM  Seok-Ho CHANG  

IEICE TRANSACTIONS on Communications   Vol.E100-B   No.4   pp.619-626
Publication Date: 2017/04/01
Online ISSN: 1745-1345
DOI: 10.1587/transcom.2016EBP3279
Type of Manuscript: PAPER
Category: Wireless Communication Technologies
dual-hop amplify-and-forward relay,  variable-gain relay,  beamforming,  outage probability,  average capacity,  η-µ fading channels,  

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A dual-hop amplify-and-forward (AF) relaying system with beamforming is analyzed over η-µ fading channels that includes Nakagami-m, Nakagami-q (Hoyt), and Rayleigh fading channels as special cases. New and exact expressions for the outage probability (OP) and average capacity are derived. Moreover, a new asymptotic analysis is also conducted for the OP and average capacity in terms of basic elementary functions which make it easy to understand the system behavior and the impact of channel parameters. The viability of the analysis is verified by Monte Carlo simulations.