On a power allocation method for IDMA systems

Mark S.K. Lau; Wuyi Yue; Peng Wang

doi:10.1109/TWC.2008.070258

On a power allocation method for IDMA systems

Mark S.K. Lau
, Wuyi Yue
, Peng Wang

Research output: Contribution to journal › Article › peer-review

6 Scopus citations

Abstract

A method was proposed in this journal (vol. 6, no. 1, pp. 192-201, 2007), which tackles a power allocation problem for interleave-division multiple-access (IDMA) systems over fading channels. In this paper, we show that the method may not provide valid solutions in some situations. We illustrate this with many numerical examples. Our findings indicate that the method should be applied carefully, and further investigation is required to find efficient methods for more general situations.

Original language	English
Article number	4600202
Pages (from-to)	2905-2910
Number of pages	6
Journal	IEEE Transactions on Wireless Communications
Volume	7
Issue number	8
DOIs	https://doi.org/10.1109/TWC.2008.070258
State	Published - Aug 2008
Externally published	Yes

Keywords

CDMA
IDMA
Iterative multi-user detection
Optimization
Power allocation
SINR evolution

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10.1109/TWC.2008.070258

Cite this

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title = "On a power allocation method for IDMA systems",

abstract = "A method was proposed in this journal (vol. 6, no. 1, pp. 192-201, 2007), which tackles a power allocation problem for interleave-division multiple-access (IDMA) systems over fading channels. In this paper, we show that the method may not provide valid solutions in some situations. We illustrate this with many numerical examples. Our findings indicate that the method should be applied carefully, and further investigation is required to find efficient methods for more general situations.",

keywords = "CDMA, IDMA, Iterative multi-user detection, Optimization, Power allocation, SINR evolution",

author = "Lau, \{Mark S.K.\} and Wuyi Yue and Peng Wang",

note = "Funding Information: Manuscript received March 5, 2007; revised September 11, 2007; accepted December 6, 2007. The associate editor coordinating the review of this paper and approving it for publication was W. Yu. This work was supported in part by Grant-in Aid for Scientific Research (No. 19500070) and MEXT.ORC (2004-2008), Japan. M. S. K. Lau is with the Institute of Intelligent Information and Communications Technology, Konan University, Kobe 658-8501 Japan (e-mail: [email protected], [email protected]). W. Yue is with the Department of Intelligence and Informatics, Konan University, Kobe 658-8501 Japan (e-mail: [email protected]). P. Wang is with the Department of Electronic Engineering, City University of Hong Kong, Hong Kong (e-mail: [email protected]). Digital Object Identifier 10.1109/TWC.2008.070258. 1This component is also called Elementary Signal Estimator in [4], [5].",

year = "2008",

month = aug,

doi = "10.1109/TWC.2008.070258",

language = "English",

volume = "7",

pages = "2905--2910",

journal = "IEEE Transactions on Wireless Communications",

issn = "1536-1276",

publisher = "Institute of Electrical and Electronics Engineers Inc.",

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}

TY - JOUR

T1 - On a power allocation method for IDMA systems

AU - Lau, Mark S.K.

AU - Yue, Wuyi

AU - Wang, Peng

N1 - Funding Information: Manuscript received March 5, 2007; revised September 11, 2007; accepted December 6, 2007. The associate editor coordinating the review of this paper and approving it for publication was W. Yu. This work was supported in part by Grant-in Aid for Scientific Research (No. 19500070) and MEXT.ORC (2004-2008), Japan. M. S. K. Lau is with the Institute of Intelligent Information and Communications Technology, Konan University, Kobe 658-8501 Japan (e-mail: [email protected], [email protected]). W. Yue is with the Department of Intelligence and Informatics, Konan University, Kobe 658-8501 Japan (e-mail: [email protected]). P. Wang is with the Department of Electronic Engineering, City University of Hong Kong, Hong Kong (e-mail: [email protected]). Digital Object Identifier 10.1109/TWC.2008.070258. 1This component is also called Elementary Signal Estimator in [4], [5].

PY - 2008/8

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N2 - A method was proposed in this journal (vol. 6, no. 1, pp. 192-201, 2007), which tackles a power allocation problem for interleave-division multiple-access (IDMA) systems over fading channels. In this paper, we show that the method may not provide valid solutions in some situations. We illustrate this with many numerical examples. Our findings indicate that the method should be applied carefully, and further investigation is required to find efficient methods for more general situations.

AB - A method was proposed in this journal (vol. 6, no. 1, pp. 192-201, 2007), which tackles a power allocation problem for interleave-division multiple-access (IDMA) systems over fading channels. In this paper, we show that the method may not provide valid solutions in some situations. We illustrate this with many numerical examples. Our findings indicate that the method should be applied carefully, and further investigation is required to find efficient methods for more general situations.

KW - CDMA

KW - IDMA

KW - Iterative multi-user detection

KW - Optimization

KW - Power allocation

KW - SINR evolution

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DO - 10.1109/TWC.2008.070258

M3 - Article

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EP - 2910

JO - IEEE Transactions on Wireless Communications

JF - IEEE Transactions on Wireless Communications

IS - 8

M1 - 4600202

ER -

On a power allocation method for IDMA systems

Abstract

Keywords

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