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A Unified Power Control Algorithm for Multiuser Detectors in Large Systems: Convergence and Performance

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Farhad Meshkati, H. Vincent Poor, Stuart C. Schwartz, Dongning Guo

Information Theory · Submitted 7 Oct 2005

abstract compiled · 2026-09-23 · no language-model review

The authors' main claim In this paper, the convergence of the UPC algorithm is proved for the matched filter, the decorrelator, and the MMSE detector.

how it is stated · asserted 1.00 read the record →

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arXiv IDcs/0510021 (version 1)
Pith IDEVPQ5O46, Pith's permanent record of this paper and its review
CitationDongning Guo, Farhad Meshkati, H. Vincent Poor, Stuart C. Schwartz. "A Unified Power Control Algorithm for Multiuser Detectors in Large Systems: Convergence and Performance." arXiv:cs/0510021 (2005). https://pith.science/paper/EVPQ5O46
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What the abstract itself states, as probabilities: claims first 0.05 · states limitation 0.34 · human participants 0.02 · controlled comparison 0.75 · randomized assignment 0.02 · states quantitative result 0.06 · compares with prior results 0.94 · mentions code or data availability 0.02.

The abstract, sentence by sentence

arXiv listing abstract v1. Results and the main claim are underlined; .

A unified approach to energy-efficient power control, applicable to a large family of receivers including the matched filter, the decorrelator, the (linear) minimum-mean-square-error detector (MMSE), and the individually and jointly optimal multiuser detectors, has recently been proposed for code-division-multiple-access (CDMA) networks. This unified power control (UPC) algorithm exploits the linear relationship that has been shown to exist between the transmit power and the output signal-to-interference-plus-noise ratio (SIR) in large systems. Based on this principle and by computing the multiuser efficiency, the UPC algorithm updates the users' transmit powers in an iterative way to achieve the desired target SIR. In this paper, the convergence of the UPC algorithm is proved for the matched filter, the decorrelator, and the MMSE detector. In addition, the performance of the algorithm in finite-size systems is studied and compared with that of existing power control schemes. The UPC algorithm is particularly suitable for systems with randomly generated long spreading sequences (i.e., sequences whose period is longer than one symbol duration).

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#sentencerolethe authors' own workstates the main conclusionstrength
s0 A unified approach to energy-efficient power control, applicable to a large family of receivers including the matched filter, the decorrelator, the (linear) minimum-mean-square-error detector (MMSE), and the individually and jointly optimal multiuser detectors, has recently been proposed for code-division-multiple-access (CDMA) networks. background 0.98 0.06 0.07 asserted 1.00
s1 This unified power control (UPC) algorithm exploits the linear relationship that has been shown to exist between the transmit power and the output signal-to-interference-plus-noise ratio (SIR) in large systems. method 0.68 0.13 0.05 asserted 1.00
s2 Based on this principle and by computing the multiuser efficiency, the UPC algorithm updates the users' transmit powers in an iterative way to achieve the desired target SIR. method 0.94 0.25 0.07 asserted 1.00
s3 In this paper, the convergence of the UPC algorithm is proved for the matched filter, the decorrelator, and the MMSE detector. contribution 0.68 0.94 0.45 asserted 1.00
s4 In addition, the performance of the algorithm in finite-size systems is studied and compared with that of existing power control schemes. contribution 1.00 0.92 0.09 asserted 0.96
s5 The UPC algorithm is particularly suitable for systems with randomly generated long spreading sequences (i.e., sequences whose period is longer than one symbol duration). interpretation 0.64 0.31 0.06 asserted 0.94

What kind of paper the classifier reports this is: theoretical result 0.99 · evidence from proof or derivation 0.98.

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Every quoted sentence on this record is the authors'. Every label is from Pith's closed vocabulary, with the probability shown beside it. Every number in the measurements table is the authors', checked by code. Record as JSON

The paper
Original abstract

A unified approach to energy-efficient power control, applicable to a large family of receivers including the matched filter, the decorrelator, the (linear) minimum-mean-square-error detector (MMSE), and the individually and jointly optimal multiuser detectors, has recently been proposed for code-division-multiple-access (CDMA) networks. This unified power control (UPC) algorithm exploits the linear relationship that has been shown to exist between the transmit power and the output signal-to-interference-plus-noise ratio (SIR) in large systems. Based on this principle and by computing the multiuser efficiency, the UPC algorithm updates the users' transmit powers in an iterative way to achieve the desired target SIR. In this paper, the convergence of the UPC algorithm is proved for the matched filter, the decorrelator, and the MMSE detector. In addition, the performance of the algorithm in finite-size systems is studied and compared with that of existing power control schemes. The UPC algorithm is particularly suitable for systems with randomly generated long spreading sequences (i.e., sequences whose period is longer than one symbol duration).

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