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http://dx.doi.org/10.5909/JBE.2008.13.6.883

Dynamic Resource Allocation Scheme for Multiple Antenna OFDM-based Wireless Multicast Systems  

Xu, Jian (Dept. of Electrical & Electronic Eng., Yonsei Univ.)
Lee, Sang-Jin (Dept. of Electrical & Electronic Eng., Yonsei Univ.)
Kang, Woo-Seok (Dept. of Electrical & Electronic Eng., Yonsei Univ.)
Seo, Jong-Soo (Dept. of Electrical & Electronic Eng., Yonsei Univ.)
Publication Information
Journal of Broadcast Engineering / v.13, no.6, 2008 , pp. 883-891 More about this Journal
Abstract
Multiple antenna orthogonal frequency division multiplexing (OFDM) is a promising technique for the high downlink-capacity in the next generation wireless systems, in which adaptive resource allocation is an important research issue that can significantly improve the performance with guaranteed QoS for users. However, most of the current resource allocation algorithms are limited to unicast system. In this paper, dynamic resource allocation is studied for multiple antenna OFDM based systems with multicast service. In the simulation, the performance of multicast system was compared with that of the unicast system. Numerical results also show that by using the proposed algorithms the system capacity is significantly improved compared with the conventional scheme.
Keywords
MIMO; OFDM; multicast service; adaptive resource allocation; water-filling;
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