On Gaussian multiple access channels with interference: achievable rates and upper bounds

  • Authors:
  • Anas Chaaban;Aydin Sezgin;Bernd Bandemer;Arogyaswami Paulraj

  • Affiliations:
  • Institute of Telecommunications and Applied Information Theory, Ulm University, Ulm, Germany;Institute of Telecommunications and Applied Information Theory, Ulm University, Ulm, Germany;Information Systems Lab, Stanford University, Stanford, CA;Information Systems Lab, Stanford University, Stanford, CA

  • Venue:
  • MACOM'11 Proceedings of the 4th international conference on Multiple access communications
  • Year:
  • 2011

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Abstract

We study the interaction between two interfering Gaussian 2-user multiple access channels. The capacity region is characterized under mixed strong-extremely strong interference and individually very strong interference. Furthermore, the sum capacity is derived under a less restricting definition of very strong interference. Finally, a general upper bound on the sum capacity is provided, which is nearly tight for weak cross links.