Abstract
In broadband wireless OFDMA systems where a set of subcarriers is shared among multiple users, the overall system throughput can be improved by a band AMC mode that selects subbands preferential to individual users. As long as channel qualities for the subbands of all users are known a priori, multiuser and frequency diversity gains can be simultaneously achieved with an appropriate scheduling algorithm. In this paper, an analytical means of evaluating the maximum system throughput that can be achieved with a band-AMC mode is presented under the various system parameters. In particular, practical features of resource management for the OFDMA system are carefully modeled within the analytical framework. Also, we validate the proposed analytical model through a simulation. The numerical results demonstrate that the band AMC mode outperforms the diversity mode as long as sufficient feedback information for channel quality indication is provided for the subbands of all users.
| Original language | English |
|---|---|
| Title of host publication | IEEE Wireless Communications and Networking Conference, WCNC |
| Pages | 1305-1310 |
| Number of pages | 6 |
| Volume | 3 |
| Publication status | Published - 2006 Dec 1 |
| Event | 2006 IEEE Wireless Communications and Networking Conference, WCNC 2006 - Las Vegas, NV, United States Duration: 2006 Apr 3 → 2006 Apr 6 |
Other
| Other | 2006 IEEE Wireless Communications and Networking Conference, WCNC 2006 |
|---|---|
| Country | United States |
| City | Las Vegas, NV |
| Period | 06/4/3 → 06/4/6 |
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ASJC Scopus subject areas
- Engineering(all)
Cite this
Throughput analysis of band AMC scheme in broadband wireless OFDMA system. / Sung, Kyung Kim; Kang, Chung Gu.
IEEE Wireless Communications and Networking Conference, WCNC. Vol. 3 2006. p. 1305-1310 1696475.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - Throughput analysis of band AMC scheme in broadband wireless OFDMA system
AU - Sung, Kyung Kim
AU - Kang, Chung Gu
PY - 2006/12/1
Y1 - 2006/12/1
N2 - In broadband wireless OFDMA systems where a set of subcarriers is shared among multiple users, the overall system throughput can be improved by a band AMC mode that selects subbands preferential to individual users. As long as channel qualities for the subbands of all users are known a priori, multiuser and frequency diversity gains can be simultaneously achieved with an appropriate scheduling algorithm. In this paper, an analytical means of evaluating the maximum system throughput that can be achieved with a band-AMC mode is presented under the various system parameters. In particular, practical features of resource management for the OFDMA system are carefully modeled within the analytical framework. Also, we validate the proposed analytical model through a simulation. The numerical results demonstrate that the band AMC mode outperforms the diversity mode as long as sufficient feedback information for channel quality indication is provided for the subbands of all users.
AB - In broadband wireless OFDMA systems where a set of subcarriers is shared among multiple users, the overall system throughput can be improved by a band AMC mode that selects subbands preferential to individual users. As long as channel qualities for the subbands of all users are known a priori, multiuser and frequency diversity gains can be simultaneously achieved with an appropriate scheduling algorithm. In this paper, an analytical means of evaluating the maximum system throughput that can be achieved with a band-AMC mode is presented under the various system parameters. In particular, practical features of resource management for the OFDMA system are carefully modeled within the analytical framework. Also, we validate the proposed analytical model through a simulation. The numerical results demonstrate that the band AMC mode outperforms the diversity mode as long as sufficient feedback information for channel quality indication is provided for the subbands of all users.
UR - http://www.scopus.com/inward/record.url?scp=34250306439&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=34250306439&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:34250306439
SN - 1424402700
SN - 9781424402700
VL - 3
SP - 1305
EP - 1310
BT - IEEE Wireless Communications and Networking Conference, WCNC
ER -