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Adaptive Resource Allocation for MIMO-OFDM Based Wireless Multicast Systems

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4 Author(s)
Jian Xu ; Dept. of Electr. & Electron. Eng., Yonsei Univ., Seoul, South Korea ; Sang-jin Lee ; Woo-Seok Kang ; Jong-Soo Seo

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.

Published in:

Broadcasting, IEEE Transactions on  (Volume:56 ,  Issue: 1 )

Date of Publication:

March 2010

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