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2008
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Outer bound and noisy-interference sum-rate capacity for symmetric Gaussian interference channels

8 years 4 months ago
Outer bound and noisy-interference sum-rate capacity for symmetric Gaussian interference channels
A new outer bound on the capacity region of Gaussian interference channels is developed. The bound combines and improves existing genie-aided methods and is shown to give the sum-rate capacity for Gaussian interference channel with noisy interference as defined in this paper. Specifically, it is shown that if the channel coefficients and power constraints satisfy a simple condition then single-user detection at each receiver is sum-rate optimal, i.e., treating the interference as noise incurs no loss in performance. Finally, we generalize the noisy interference sum-rate capacity to m-user interference channels.
Xiaohu Shang, Gerhard Kramer, Biao Chen
Added 13 Oct 2010
Updated 13 Oct 2010
Type Conference
Year 2008
Where CISS
Authors Xiaohu Shang, Gerhard Kramer, Biao Chen
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