DocumentCode
1410790
Title
Noisy-Interference Sum-Rate Capacity of Parallel Gaussian Interference Channels
Author
Shang, Xiaohu ; Chen, Biao ; Kramer, Gerhard ; Poor, H. Vincent
Author_Institution
Dept. of Electr. Eng., Princeton Univ., Princeton, NJ, USA
Volume
57
Issue
1
fYear
2011
Firstpage
210
Lastpage
226
Abstract
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.
Keywords
Gaussian channels; channel allocation; channel capacity; interference suppression; Gaussian interference channels; channel coefficients; noisy interference; optimal power allocation; parallel channels; power constraints; sum-rate capacity; Covariance matrix; DSL; Interference; Noise; Noise measurement; Optimization; Resource management; Capacity; Gaussian; interference; parallel channel;
fLanguage
English
Journal_Title
Information Theory, IEEE Transactions on
Publisher
ieee
ISSN
0018-9448
Type
jour
DOI
10.1109/TIT.2010.2090226
Filename
5673959
Link To Document