Paper Info
Title
Capacity Per Unit Energy of Fading Channels With a Peak Constraint
Abstract
A discrete-time single-user scalar channel with temporally correlated Rayleigh fading is analyzed. There is no side information at the transmitter or the receiver. A simple expression is given for the capacity per unit energy, in the presence of a peak constraint. The simple formula of VerdÚ for capacity per unit cost is adapted to a channel with memory, and is used in the proof. In addition to bounding the capacity of a channel with correlated fading, the result gives some insight into the relationship between the correlation in the fading process and the channel capacity. The results are extended to a channel with side information, showing that the capacity per unit energy is one nat per joule, independently of the peak power constraint. A continuous-time version of the model is also considered. The capacity per unit energy subject to a peak constraint (but no bandwidth constraint) is given by an expression similar to that for discrete time, and is evaluated for Gauss–Markov and Clarke fading channels.
Year
DOI
Venue
2005
10.1109/TIT.2005.853329
international symposium on information theory
Keywords
DocType
Volume
bandwidth constraint,channel capacity,clarke fading channel,peak constraint,correlated fading,unit energy,peak power constraint,fading channels,fading process,discrete-time single-user scalar channel,side information,gaussian processes,fading channel,discrete time
Journal
51
Issue
ISSN
Citations 
9
0018-9448
31
PageRank 
References 
Authors
1.71
14
2
Name
Order
Citations
PageRank
vignesh sethuraman1311.71
Bruce Hajek215417.84