On the Capacity of the 2-user Gaussian MAC Interfering with a P2P Link
Konferenz: European Wireless 2011 - Sustainable Wireless Technologies
27.04.2011 - 29.04.2011 in Vienna, Austria
Tagungsband: European Wireless 2011
Seiten: 6Sprache: EnglischTyp: PDFPersönliche VDE-Mitglieder erhalten auf diesen Artikel 10% Rabatt
Chaaban, Anas; Sezgin, Aydin (Emmy-Noether Research Group on Wireless Networks, Institute of Telecommunications and Applied Information Theory, Ulm University, 89081 Ulm, Germany)
A multiple access channel and a point-to-point channel sharing the same medium for communications are considered. We obtain an outer bound for the capacity region of this setup, and we show that this outer bound is achievable in some cases. These cases are mainly when interference is strong or very strong. In the low interference regime, a simple strategy using Gaussian codes and treating interference as noise is considered. An upper bound on the sum capacity is derived and shown to be tight (but not coinciding) with the sum-rate achievable using this scheme.