Sum Capacity of the Gaussian Interference Channel in the Low Interference Regime
arXiv:0801.0452
Abstract
New upper bounds on the sum capacity of the two-user Gaussian interference channel are derived. Using these bounds, it is shown that treating interference as noise achieves the sum capacity if the interference levels are below certain thresholds.
6 pages, 4 figures, Proceedings of ITA Workshop, San Diego, CA, Jan-Feb, 2008