TY - GEN
T1 - Resource allocation scheme for MIMO-OFDMA systems with proportional fairness constraints
AU - Ali, Mohammed Akber
AU - Al-Ghadhban, Samir
AU - Hasan Mahmoud, Ashraf S.
PY - 2012
Y1 - 2012
N2 - Multiple input multiple output (MIMO) - Orthogonal Frequency Division Multiple Access (OFDMA) systems have great potential for providing high spectral efficiency due to its integrated space-frequency and multi-user diversity. In this work a dynamic resource allocation scheme has been devised for MIMO-OFDMA systems in a downlink scenario. The scheme optimizes the power distribution, guarantees each user its desired quality of service (QoS), and ensures strict level of fairness to users. The available channel state information at the base station (BS) is utilized in order to help these practical schemes improve system performance, as well as satisfy various QoS constraints. The simulation results obtained show that the proposed scheme satisfies proportional data rate constraints in strict sense and achieves high system capacities.
AB - Multiple input multiple output (MIMO) - Orthogonal Frequency Division Multiple Access (OFDMA) systems have great potential for providing high spectral efficiency due to its integrated space-frequency and multi-user diversity. In this work a dynamic resource allocation scheme has been devised for MIMO-OFDMA systems in a downlink scenario. The scheme optimizes the power distribution, guarantees each user its desired quality of service (QoS), and ensures strict level of fairness to users. The available channel state information at the base station (BS) is utilized in order to help these practical schemes improve system performance, as well as satisfy various QoS constraints. The simulation results obtained show that the proposed scheme satisfies proportional data rate constraints in strict sense and achieves high system capacities.
KW - Fairness
KW - MIMO
KW - OFDMA
KW - proportionality constraints
KW - weighted capacity sum
UR - http://www.scopus.com/inward/record.url?scp=84872068837&partnerID=8YFLogxK
U2 - 10.1109/WiMOB.2012.6379122
DO - 10.1109/WiMOB.2012.6379122
M3 - Conference contribution
AN - SCOPUS:84872068837
SN - 9781467314305
T3 - International Conference on Wireless and Mobile Computing, Networking and Communications
SP - 512
EP - 516
BT - 2012 IEEE 8th International Conference on Wireless and Mobile Computing, Networking and Communications, WiMob 2012
ER -