On the Capacity and Mutual Information of Memoryless Noncoherent Rayleigh-Fading Channels
Abstract
The memoryless noncoherent single-input single-output (SISO) Rayleigh-fading channel is considered. Closed-form expressions for the mutual information between the output and the input of this channel when the input magnitude distribution is discrete and restricted to having two mass points are derived, and it is subsequently shown how these expressions can be used to obtain closed-form expressions for the capacity of this channel for signal to noise ratio (SNR) values of up to approximately 0 dB, and a tight capacity lower bound for SNR values between 0 dB and 10 dB. The expressions for the channel capacity and its lower bound are given as functions of a parameter which can be obtained via numerical root-finding algorithms.
Cite
@article{arxiv.cs/0605075,
title = {On the Capacity and Mutual Information of Memoryless Noncoherent Rayleigh-Fading Channels},
author = {Sebastien de la Kethulle de Ryhove and Ninoslav Marina and Geir E. Oien},
journal= {arXiv preprint arXiv:cs/0605075},
year = {2007}
}
Comments
20 pages, 3 figures. Submitted to IEEE Transactions on Information Theory