Multi-user water-filling in uplink OFDMA systems

Sunny Chang; Seong Lyun Kim

doi:10.1109/wcnc.2008.342

Multi-user water-filling in uplink OFDMA systems

Sunny Chang, Seong Lyun Kim

Department of Electrical and Electronic Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

1 Citation (Scopus)

Abstract

In this paper, we focus on the optimal power allocation problem in the multi-user uplink OFDMA system. For the purpose, based on the KKT conditions of the problem, we design suboptimal algorithms that may be implementable in an iterative and distributive manner. An important feature of our algorithm is that it takes the generated interference to the system into account. Numerical examples show that our algorithms outperform the others, in terms of total throughput, outage probability and energy efficiency.

Original language	English
Title of host publication	WCNC 2008 - IEEE Wireless Communications and Networking Conference, Conference Proceedings
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	1922-1926
Number of pages	5
ISBN (Print)	9781424419968
DOIs	https://doi.org/10.1109/wcnc.2008.342
Publication status	Published - 2008
Event	IEEE Wireless Communications and Networking Conference, WCNC 2008 - Las Vegas, NV, United States Duration: 2008 Mar 31 → 2008 Apr 3

Publication series

Name	IEEE Wireless Communications and Networking Conference, WCNC
ISSN (Print)	1525-3511

Other

Other	IEEE Wireless Communications and Networking Conference, WCNC 2008
Country	United States
City	Las Vegas, NV
Period	08/3/31 → 08/4/3

All Science Journal Classification (ASJC) codes

Engineering(all)

UN SDGs

This output contributes to the following Sustainable Development Goal(s)

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10.1109/wcnc.2008.342

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abstract = "In this paper, we focus on the optimal power allocation problem in the multi-user uplink OFDMA system. For the purpose, based on the KKT conditions of the problem, we design suboptimal algorithms that may be implementable in an iterative and distributive manner. An important feature of our algorithm is that it takes the generated interference to the system into account. Numerical examples show that our algorithms outperform the others, in terms of total throughput, outage probability and energy efficiency.",

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note = "IEEE Wireless Communications and Networking Conference, WCNC 2008 ; Conference date: 31-03-2008 Through 03-04-2008",

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Chang, S & Kim, SL 2008, Multi-user water-filling in uplink OFDMA systems. in WCNC 2008 - IEEE Wireless Communications and Networking Conference, Conference Proceedings., 4489373, IEEE Wireless Communications and Networking Conference, WCNC, Institute of Electrical and Electronics Engineers Inc., pp. 1922-1926, IEEE Wireless Communications and Networking Conference, WCNC 2008, Las Vegas, NV, United States, 08/3/31. https://doi.org/10.1109/wcnc.2008.342

Multi-user water-filling in uplink OFDMA systems. / Chang, Sunny; Kim, Seong Lyun.

WCNC 2008 - IEEE Wireless Communications and Networking Conference, Conference Proceedings. Institute of Electrical and Electronics Engineers Inc., 2008. p. 1922-1926 4489373 (IEEE Wireless Communications and Networking Conference, WCNC).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

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AB - In this paper, we focus on the optimal power allocation problem in the multi-user uplink OFDMA system. For the purpose, based on the KKT conditions of the problem, we design suboptimal algorithms that may be implementable in an iterative and distributive manner. An important feature of our algorithm is that it takes the generated interference to the system into account. Numerical examples show that our algorithms outperform the others, in terms of total throughput, outage probability and energy efficiency.

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Multi-user water-filling in uplink OFDMA systems

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