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Capacity to within one bit of a class of Gaussian multicast channels with interference

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4 Author(s)
Sriram Sridharan ; Electrical and Computer Engineering, University of Texas at Austin, 78712, USA ; Angel Lozano ; Harish Viswanathan ; Sriram Vishwanath

This paper studies the fundamental operational limits of a class of Gaussian multicast channels with an interference setting. In particular, the paper considers two base stations multicasting separate messages to distinct sets of users. In the presence of channel state information at the transmitters and at the respective receivers, the capacity region of the Gaussian multicast channel with interference is characterized to within one bit. At the crux of this result is an extension to the multicast channel with interference of the Han-Kobayashi or the Chong-Motani-Garg achievable region for the interference channel.

Published in:

Information Theory Workshop, 2008. ITW '08. IEEE

Date of Conference:

5-9 May 2008