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A Refined Convergence Condition for Iterative Waterfilling Algorithm

delete2014-02-01
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PRE
AI
M
Mingjun Dai
S
Shengli Zhang
B
Bin Chen
林
林晓辉 (Xiaohui Lin)
H
Hui Wang *
DOI:10.1109/LCOMM.2013.121813.132226delete
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Abstract

Abstract

En 中文
In a multi-user spectrum optimization problem, iterative waterfilling is normally used as a distributed power allocation algorithm. In this letter, we derive a new sufficient condition for its convergence, which is more relaxed than previous conditions. Our result strengthens the fact that the convergence of iterative waterfilling is dependent on signal-to-noise ratio (SNR), and that convergence is much easier in the low SNR regime.
Keywords:
Frequency selective
Gaussian interference channel
iterative waterfilling
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Key information extracted from the uploaded paper, including a brief overview, abstract, background, key highlights, visual analysis, and future outlook.

Journal

IEEE Communications Letters cover
IEEE Communications Letters
IF:
4.4
Papers:
1.3W
Citations:
2.2W

Organization

S
shenzhen university
Scholars:
4.6W
Papers: 3.4W
Citations: 72
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