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The Cognitive Interference Channel with a Causal Relay in Very Strong Interference

Reátegui, Fernando, Imran, Muhammad Ali and Tafazolli, Rahim (2015) The Cognitive Interference Channel with a Causal Relay in Very Strong Interference IEEE COMMUNICATIONS LETTERS.

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We study the cognitive interference channel where an additional node (a relay) is present. In our model the relay's operation is causal rather than strictly causal, i.e., the relay's transmit symbol depends not only on its past but also on its current received symbol. We derive outer bounds for the discrete and Gaussian cases in very strong interference. A scheme for achievability based on instantaneous amplify-and-forward relaying is proposed for this model. The inner and outer bounds coincide for the special case of very strong interference.

Item Type: Article
Divisions : Faculty of Engineering and Physical Sciences > Electronic Engineering > Centre for Communication Systems Research
Authors :
Imran, Muhammad
Date : 17 January 2015
Identification Number : 10.1109/LCOMM.2015.2394313
Additional Information : © 2015 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
Depositing User : Fernando Reategui Del Aguila
Date Deposited : 24 Feb 2015 15:26
Last Modified : 24 Feb 2015 15:26

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