On the Limits of Treating Interference as Noise for Two-User Symmetric Gaussian Interference Channels
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© 2015 IEEE. The limits of treating interference as noise are studied for the canonical two-user symmetric Gaussian interference channel. A two-step approach is proposed for finding approximately optimal input distributions in the high signal-to-noise ratio (SNR) regime. First, approximately and precisely optimal input distributions are found for the Avestimehr-Diggavi-Tse (ADT) linear deterministic model. These distributions are then translated, systematically, into Gaussian models, which we show can achieve the sum capacity to within O(log log(SNR)).
author list (cited authors)
Li, S., Huang, Y., Liu, T., & Pfister, H. D.