On the Capacity of Fading MIMO Broadcast Channels with Imperfect Transmitter Side-Information
Information Theory
2007-07-13 v1 math.IT
Abstract
A fading broadcast channel is considered where the transmitter employs two antennas and each of the two receivers employs a single receive antenna. It is demonstrated that even if the realization of the fading is precisely known to the receivers, the high signal-to-noise (SNR) throughput is greatly reduced if, rather than knowing the fading realization \emph{precisely}, the trasmitter only knows the fading realization \emph{approximately}. The results are general and are not limited to memoryless Gaussian fading.
Cite
@article{arxiv.cs/0605079,
title = {On the Capacity of Fading MIMO Broadcast Channels with Imperfect Transmitter Side-Information},
author = {Amos Lapidoth and Shlomo Shamai and Michele Wigger},
journal= {arXiv preprint arXiv:cs/0605079},
year = {2007}
}
Comments
Extended version of a paper of the same title that appeared in the Proceedings of the 43rd Annual Allerton Conference on Communication, Control, and Computing, Sept. 28-30, 2005