Summary: IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY, VOL. 57, NO. 1, JANUARY 2008 79
A Model for Correlated Rician Fading
Channels Based on a Finite Queue
Libo Zhong, Fady Alajaji, Senior Member, IEEE, and Glen Takahara, Member, IEEE
Abstract--We study the problem of approximating the family
of hard-decision frequency-shift keying demodulated correlated
flat Rician fading channels via a recently introduced queue-based
channel (QBC) model for binary communication channels with
memory. For a given "discretized" fading channel, we con-
struct a QBC whose noise process is statistically "close" in the
Kullback­Leibler sense to the error or noise process that is gener-
ated by the fading channel, and the modeling accuracy is evaluated
in terms of noise autocorrelation function (ACF) and channel
capacity. Numerical results indicate that the QBC provides a good
approximation of the fading channels for a wide range of channel
conditions. Furthermore, it estimates the noise ACF more accu-
rately than the finite-state Markov models that have been recently
studied by Pimentel et al., while, at the same time, remaining
mathematically tractable.
Index Terms--Autocorrelation function (ACF), capacity, corre-

Source: Alajaji, Fady - Department of Mathematics and Statistics, Queen's University (Kingston)

Collections: Engineering