Channel capacity of OFDM systems employing diversity in fading environments

Authors:
Khoa N. Le;Kishor P. Dabke
Affiliations:
School of Engineering, Building XB, College of Health and Science, University of Western Sydney, Locked Bag 1797, Penrith South DC, NSW 1797, Australia;Department of Electrical and Computer Systems Engineering, Monash University, Clayton, VIC 3800, Australia
Venue:
Wireless Communications & Mobile Computing
Year:
2012

Citing 6
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Abstract

This paper derives capacity of a fading channel with orthogonal frequency division multiplexing (OFDM) transmission employing diversity techniques and adaptive policies involving (i) power and rate, (ii) optimal rate and (iii) channel inversion with fixed rate. Two major diversity techniques are considered (i) maximal ratio combining (MRC) and (ii) selective combining (SC). Closed-form expressions and/or bounds on various channel capacity with OFDM transmission under different scenarios are derived. Simulation results are given. Copyright © 2011 John Wiley & Sons, Ltd.