Multipath Channels of Bounded Capacity
arXiv:0711.3152 · doi:10.1109/ITW.2008.4578611
Abstract
The capacity of discrete-time, non-coherent, multipath fading channels is considered. It is shown that if the delay spread is large in the sense that the variances of the path gains do not decay faster than geometrically, then capacity is bounded in the signal-to-noise ratio.
To be presented at the 2008 IEEE Information Theory Workshop (ITW) in Porto, Portugal; replaced with the version that appears in the proceedings