The Capacity of the Interference Channel With a Cognitive Relay in Strong Interference

The interference channel with a cognitive relay consists of a classical interference channel with two source-destination pairs and with an additional cognitive relay that has a priori knowledge of the sources' messages and aids in the sources' transmission. The authors derive a new outer bound for this channel using an argument originally devised for the "More capable" broadcast channel, and show the achievability of the proposed outer bound for a class of channels where there is no loss in optimality if both destinations decode both messages.

Provided by: University of Illinois Topic: Mobility Date Added: Jun 2011 Format: PDF

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