Noisy-Interference Sum-Rate Capacity of Parallel Gaussian Interference Channels

被引：30

作者：

Shang, Xiaohu ^{[1
]}

Chen, Biao ^{[3
]}

Kramer, Gerhard ^{[2
,4
]}

Poor, H. Vincent ^{[1
]}

机构：

[1] Princeton Univ, Dept Elect Engn, Princeton, NJ 08544 USA

[2] Bell Labs, Alcatel Lucent, Murray Hill, NJ 07974 USA

[3] Syracuse Univ, Dept EECS, Syracuse, NY 13244 USA

[4] Tech Univ Munich, D-80333 Munich, Germany

来源：

IEEE TRANSACTIONS ON INFORMATION THEORY | 2011年 / 57卷 / 01期

基金：

美国国家科学基金会;

关键词：

Capacity; Gaussian; interference; parallel channel; SPECTRUM MANAGEMENT; REGION; BOUNDS;

D O I：

10.1109/TIT.2010.2090226

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

The sum-rate capacity of the parallel Gaussian interference channel is shown to be achieved by independent transmission across subchannels and treating interference as noise if the channel coefficients and power constraints satisfy a certain condition. The condition requires the interference to be weak, a situation commonly encountered, e. g., in digital subscriber line transmission. The optimal power allocation is characterized by using the concavity of the sum-rate capacity as a function of the power constraints.

引用

页码：210 / 226

页数：17

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