On the Devroye-Mitran-Tarokh rate region for the cognitive radio channel

Authors:
Ghosheh Abed Hodtani;Mohammad Reza Aref
Affiliations:
Department of Electrical Engineering, Sadjad Institute for Higher Education, Ferdowsi University of Mashhad, Mashhad, Iran;Department of Electrical Engineering, Sharif University of Technology, Tehran, Iran
Venue:
IEEE Transactions on Wireless Communications
Year:
2009

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Abstract

An achievable rate region for the genie-aided cognitive radio channel is obtained using the celebrated Han-Kobayashi jointly decoding strategy for the interference channel and the Gel'fand-Pinsker coding scheme for channels with side information known at the transmitter. The achievable rate region is then simplified by Fourier-Motzkin elimination. The obtained achievable rate region (i) extends the Chong-Motani-Garg region for the interference channel to the cognitive channel and (ii) is a simplified description of the Devroye-Mitran-Tarokh rate region for the genie-aided cognitive radio channel.