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A new outer bound for a class of interference channels with a cognitive relay and a certain capacity result

Charmchi, H ; Sharif University of Technology | 2013

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  1. Type of Document: Article
  2. DOI: 10.1109/LCOMM.2013.011113.121808
  3. Publisher: 2013
  4. Abstract:
  5. The interference channel with a cognitive relay is a variation of the classical two-user interference channel in which a relay aids the transmission among the users. The relay is assumed to have genie-aided cognition: that is it has full, a-priori, knowledge of the messages to be transmitted. We obtain a new outer bound for this channel model and prove capacity for a class of channels in which the transmissions of the two users are non interfering. This capacity result improves on a previous result for the Gaussian case in which the capacity was proved to within a gap of 3 bits/s/Hz
  6. Keywords:
  7. Parallel channel with a cognitive relay ; Semi-deterministic interference channel with a cognitive relay ; Channel model ; Cognitive relays ; Gaussians ; Interference channels ; Outer bounds ; Signal interference ; Testbeds ; Channel capacity
  8. Source: IEEE Communications Letters ; Volume 17, Issue 2 , 2013 , Pages 241-244 ; 10897798 (ISSN)
  9. URL: http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=6412680