TY - GEN
T1 - Adaptive rate and power allocation schemes for OFDM/SDMA systems
AU - Maham, Behrouz
AU - Jedari, Esrafil
AU - Enayati, Alireza
PY - 2007/1/1
Y1 - 2007/1/1
N2 - In this paper, adaptive resource allocation approaches, which jointly adapts power distribution and subcarrier allocation according to instantaneous channel conditions, is proposed for uplink OFDM/SDMA-based multiuser system. The first scheme utilizes adaptive algorithm to reduce symbol-error rate. The closed-form algorithm is derived for this idea. The second contribution in this paper deals with constant-rate transmissions over a spatial multiuser OFDM system. In the proposed system, the receiver jointly optimizes rate and power assignments for each user and then informs them to the transmitter via a low-rate feedback channels.
AB - In this paper, adaptive resource allocation approaches, which jointly adapts power distribution and subcarrier allocation according to instantaneous channel conditions, is proposed for uplink OFDM/SDMA-based multiuser system. The first scheme utilizes adaptive algorithm to reduce symbol-error rate. The closed-form algorithm is derived for this idea. The second contribution in this paper deals with constant-rate transmissions over a spatial multiuser OFDM system. In the proposed system, the receiver jointly optimizes rate and power assignments for each user and then informs them to the transmitter via a low-rate feedback channels.
UR - http://www.scopus.com/inward/record.url?scp=43949085055&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=43949085055&partnerID=8YFLogxK
U2 - 10.1109/CHINACOM.2007.4469446
DO - 10.1109/CHINACOM.2007.4469446
M3 - Conference contribution
AN - SCOPUS:43949085055
SN - 9781424410095
T3 - Proceedings of the Second International Conference on Communications and Networking in China, ChinaCom 2007
SP - 534
EP - 538
BT - Proceedings of the Second International Conference on Communications and Networking in China, ChinaCom 2007
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2007 2nd International Conference on Communications and Networking in China, ChinaCom 2007
Y2 - 22 August 2007 through 24 August 2007
ER -