Title :
Adaptive Resource Allocation for MIMO-OFDM Based Wireless Multicast Systems
Author :
Xu, Jian ; Lee, Sang-Jin ; Kang, Woo-Seok ; Seo, Jong-Soo
Author_Institution :
Dept. of Electr. & Electron. Eng., Yonsei Univ., Seoul, South Korea
fDate :
3/1/2010 12:00:00 AM
Abstract :
Multiple antenna orthogonal frequency division multiple access (OFDMA) is a promising technique for the high downlink capacity in the next generation wireless systems, in which adaptive resource allocation would be an important research issue that can significantly improve the performance with guaranteed QoS for users. Moreover, most of the current resource allocation algorithms are limited to the unicast system. In this paper, dynamic resource allocation is studied for multiple antenna OFDMA based systems which provide multicast service. The performance of multicast system is simulated and compared with that of the unicast system. Numerical results also show that the proposed algorithms improve the system capacity significantly compared with the conventional scheme.
Keywords :
MIMO communication; OFDM modulation; frequency division multiple access; multicast communication; quality of service; radio networks; resource allocation; MIMO; OFDMA; QoS; adaptive resource allocation; downlink capacity; multiple antenna; multiple input multiple output technologies; orthogonal frequency division multiple access; quality of service; wireless multicast systems; Broadcast technology; Laboratories; MIMO; Multicast algorithms; OFDM; Quality of service; Resource management; Telecommunication traffic; Unicast; Wireless networks; Adaptive resource allocation; MIMO; OFDM; multicast service; water-filling;
Journal_Title :
Broadcasting, IEEE Transactions on
DOI :
10.1109/TBC.2009.2039691