Title
Capacity Bounds and Exact Results for the Cognitive Z-Interference Channel
Abstract
We study the discrete memoryless Z-interference channel where the transmitter of the pair that suffers from interference is cognitive. We first provide an outer bound on the capacity region of this channel. We then show that, when the channel of the transmitter–receiver pair that does not experience interference is deterministic and invertible, our proposed outer bound matches the best known inner bound. The obtained results imply that in the considered channel, superposition encoding at the noncognitive transmitter as well as Gel'fand–Pinsker encoding at the cognitive transmitter is needed in order to minimize the impact of interference. As a byproduct of the obtained capacity region, we obtain the capacity under the generalized Gel'fand–Pinsker setting where a transmitter–receiver pair communicates in the presence of interference noncausally known at the encoder.
Year
DOI
Venue
2013
10.1109/TIT.2012.2225138
IEEE Transactions on Information Theory
Keywords
DocType
Volume
superposition encoding,radio transmitters,radiofrequency interference,deterministic interference,cognitive radio,encoding,memoryless systems,interference channel with one cognitive transmitter,capacity bound,capacity region,channel capacity,cognitive interference channel,gelf-pinsker encoding,radio receivers,transmitter-receiver pair,invertible interference,noncognitive transmitter,cognitive z-interference channel,discrete memoryless z-interference channel,capacity
Journal
59
Issue
ISSN
Citations 
2
0018-9448
8
PageRank 
References 
Authors
0.53
17
4
Name
Order
Citations
PageRank
Nan Liu127126.75
Ivana Marić21904104.95
Andrea J. Goldsmith3149921685.67
Shlomo Shamai44531410.89