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 |
| Pages | 1922-1926 |
| Number of pages | 5 |
| Publication status | Published - 2008 Sep 18 |
| 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 |
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All Science Journal Classification (ASJC) codes
- Engineering(all)
Cite this
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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 proceeding › Conference contribution
TY - GEN
T1 - Multi-user water-filling in uplink OFDMA systems
AU - Chang, Sunny
AU - Kim, Seong Lyun
PY - 2008/9/18
Y1 - 2008/9/18
N2 - 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.
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.
UR - http://www.scopus.com/inward/record.url?scp=51649120888&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=51649120888&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:51649120888
SN - 9781424419968
T3 - IEEE Wireless Communications and Networking Conference, WCNC
SP - 1922
EP - 1926
BT - WCNC 2008 - IEEE Wireless Communications and Networking Conference, Conference Proceedings
ER -