Capacity of the Beaulieu-Xie Fading Channel under Adaptive Transmission Strategies

Abstract

In this paper, we study the capacity of the recently proposed Beaulieu-Xie fading channel under different trans-mission strategies. This fading distribution is used to model wireless channels characterized by multiple line-of-sight (LOS) components with some indirect rays due to multiple scatterers. Novel expressions for the channel capacity under optimum power and rate adaptation (OPRA), optimum rate adaption (ORA), channel inversion with fixed rate (CIFR) and truncated channel inversion with fixed rate (TIFR) are derived in semi-closed form. The derived expressions are verified through special cases that are already well-documented in the literature and through Monte-Carlo simulations where perfect agreement is observed thus confirming the validity of the derived expressions.