On bounds and capacity of Cognitive Multiple Access Z-Interference Channel

Patel, A and Reategui, F and Imran, M A and Khan, Mohammed Zafar Ali and Merchant, S N and Desai, U B and Tafazolli, R (2014) On bounds and capacity of Cognitive Multiple Access Z-Interference Channel. In: 20th National Conference on Communications, NCC 2014, 28th Feb to 2nd Mar, 2014, Kanpur, India.

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Abstract

In this paper, we introduce the Cognitive Multiple Access Z Interference Channel (CMAZIC) where there are two secondary user (SU) transmitters and one SU receiver and one primary user (PU) transceiver pair. Both the SUs are aware of the PU message non causally. There is interference only from the PU transmitter to the SU receiver but not vice versa. We study the Discrete Memoryless CMAZIC (DM-CMAZIC) and provide achievable rate regions with and without superposition coding at the PU transmitter and with Gelfand Pinsker coding against the interference of the PU at both the SU transmitters. For the Gaussian case we show that the inner bound without superposition coding is capacity achieving when appropriate Dirty paper coding is performed at the SU transmitters.

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IITH Creators:
IITH CreatorsORCiD
Khan, Mohammed Zafar AliUNSPECIFIED
Desai, U BUNSPECIFIED
Item Type: Conference or Workshop Item (Paper)
Uncontrolled Keywords: Dirty paper coding; Gelfand Pinsker coding; Interference channel; Multiple Access channel; Superposition coding
Subjects: Physics > Electricity and electronics
Divisions: Department of Electrical Engineering
Depositing User: Team Library
Date Deposited: 25 Nov 2014 04:40
Last Modified: 26 Sep 2017 05:17
URI: http://raiith.iith.ac.in/id/eprint/934
Publisher URL: https://doi.org/10.1109/NCC.2014.6811371
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