Compress-and-Forward Strategy for Cognitive Interference Channel with Unlimited Look-Ahead

This study investigates the Causal Cognitive Interference Channel (CC-IFC) with unlimited look-ahead, in which the cognitive user non-causally knows its entire received sequence. A coding scheme is proposed which combines the Compress-and-Forward (CF) strategy and Marton coding at the cognitive user...

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Bibliographic Details
Published in:IEEE communications letters 2011-10, Vol.15 (10), p.1068-1071
Main Authors: Mirmohseni, M., Akhbari, B., Aref, M. R.
Format: Article
Language:English
Subjects:
Access methods and protocols, osi model
Applied sciences
Channels
Coding
Coding, codes
Cognitive interference channel
compress-and-forward
Delay
Encoding
Exact sciences and technology
Gaussian
Indexes
Information, signal and communications theory
Interference
Interference channels
Marton coding
Receivers
Relays
Signal and communications theory
Strategy
Telecommunications
Telecommunications and information theory
Teleprocessing networks. Isdn
Transmitters
Wyner-Ziv coding
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Summary:This study investigates the Causal Cognitive Interference Channel (CC-IFC) with unlimited look-ahead, in which the cognitive user non-causally knows its entire received sequence. A coding scheme is proposed which combines the Compress-and-Forward (CF) strategy and Marton coding at the cognitive user. Using this scheme, a new inner bound on the capacity region (achievable rate region) is established for the CC-IFC with unlimited look-ahead. Further, the derived achievable rate region is extended to the Gaussian case and is compared with the previously obtained results via numerical examples, which are based on the Decode-and-Forward (DF) strategy.
ISSN:1089-7798
1558-2558
DOI:10.1109/LCOMM.2011.081211.111136