TY - GEN
T1 - Throughput analysis of band AMC scheme in broadband wireless OFDMA system
AU - Sung, Kyung Kim
AU - Chung, Gu Kang
PY - 2006
Y1 - 2006
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.
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M3 - Conference contribution
AN - SCOPUS:34250306439
SN - 1424402700
SN - 9781424402700
T3 - IEEE Wireless Communications and Networking Conference, WCNC
SP - 1305
EP - 1310
BT - 2006 IEEE Wireless Communications and Networking Conference, WCNC 2006
T2 - 2006 IEEE Wireless Communications and Networking Conference, WCNC 2006
Y2 - 3 April 2006 through 6 April 2006
ER -