New Outer Bounds on the Capacity Region of Gaussian Interference Channels

Details New Outer Bounds on the Capacity Region of Gaussian Interference Channels New Outer Bounds on the Capacity Region of Gaussian Interference Channels

2008-01-14

arxiv.org/abs/0801.2185v1

Computer Science

Information Theory

5 pages, 2 figures, submitted to ISIT 2008

Scientific paper

Recent 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.

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