2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/145956Recent outer bounds on the capacity region of Gaussian interference channels are generalized to $m$-user channels with $m>2$ and asymmetric powers and crosstalk coefficients. The bounds are again shown to give the sum-rate capacity for Gaussian interference channels with low powers and crosstalk coefficients. The capacity is achieved by using single-user detection at each receiver, i.e., treating the interference as noise incurs no loss in performance.5 pages, 2 figures, submitted to ISIT 2008Information Theorytext