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CISS
2011
IEEE

On the capacity region of multiple-access relay channels

13 years 3 months ago
On the capacity region of multiple-access relay channels
The capacity regions of two classes of multiple­ access relay channels (MARes) are characterized. The MARes studied in this paper include a primitive relay component, which can help in relaying the messages through a non-interfering finite-capacity link to the decoder. The capacity regions for such MARes are characterized when: (a) the decoder's output is a physically degraded version of the relay's output or, (b) the relay output can be obtained as a deterministic function of the decoder output and any one of the channel inputs. For both these classes of MARes, it is shown that the cut-set outer bound is achievable. As a consequence of the result for case (b), the capacity of a class of state-dependent multiple-access channels with rate-limited state information at the decoder is also established.
Ravi Tandon, H. Vincent Poor
Added 25 Aug 2011
Updated 25 Aug 2011
Type Journal
Year 2011
Where CISS
Authors Ravi Tandon, H. Vincent Poor
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