Multi-user water-filling in uplink OFDMA systems

Sunny Chang, Seong Lyun Kim

Research output: Chapter in Book/Report/Conference proceedingConference 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 languageEnglish
Title of host publicationWCNC 2008 - IEEE Wireless Communications and Networking Conference, Conference Proceedings
Pages1922-1926
Number of pages5
Publication statusPublished - 2008 Sep 18
EventIEEE Wireless Communications and Networking Conference, WCNC 2008 - Las Vegas, NV, United States
Duration: 2008 Mar 312008 Apr 3

Publication series

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

Other

OtherIEEE Wireless Communications and Networking Conference, WCNC 2008
CountryUnited States
CityLas Vegas, NV
Period08/3/3108/4/3

Fingerprint

Water
Outages
Energy efficiency
Throughput

All Science Journal Classification (ASJC) codes

  • Engineering(all)

Cite this

Chang, S., & Kim, S. L. (2008). Multi-user water-filling in uplink OFDMA systems. In WCNC 2008 - IEEE Wireless Communications and Networking Conference, Conference Proceedings (pp. 1922-1926). [4489373] (IEEE Wireless Communications and Networking Conference, WCNC).
Chang, Sunny ; Kim, Seong Lyun. / Multi-user water-filling in uplink OFDMA systems. WCNC 2008 - IEEE Wireless Communications and Networking Conference, Conference Proceedings. 2008. pp. 1922-1926 (IEEE Wireless Communications and Networking Conference, WCNC).
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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, pp. 1922-1926, IEEE Wireless Communications and Networking Conference, WCNC 2008, Las Vegas, NV, United States, 08/3/31.

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

WCNC 2008 - IEEE Wireless Communications and Networking Conference, Conference Proceedings. 2008. p. 1922-1926 4489373 (IEEE Wireless Communications and Networking Conference, WCNC).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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Chang S, Kim SL. Multi-user water-filling in uplink OFDMA systems. In WCNC 2008 - IEEE Wireless Communications and Networking Conference, Conference Proceedings. 2008. p. 1922-1926. 4489373. (IEEE Wireless Communications and Networking Conference, WCNC).