Abstract

We propose a technique to derive analytic upper bounds on channel
capacity via its dual expression. This is demonstrated on single-
and multi-antenna flat fading channels where the receiver has no
side information regarding the pathwise realization of the fading
process. The results indicate that the capacity of such channels
typically grows double-logarithmically in the SNR and not
logarithmically as the piece-wise constant fading models predict.



-||-   _|_ _|_     /    __|__   Stefan M. Moser
[-]     --__|__   /__\    /__   Senior Researcher & Lecturer, ETH Zurich, Switzerland
_|_     -- --|-    _     /  /   Adj. Professor, National Chiao Tung University (NCTU), Taiwan
/ \     []  \|    |_|   / \/    Web: http://moser-isi.ethz.ch/


Last modified: Wed May 10 13:01:03 2006