標題: Reducing Feedback Load of Opportunistic Multicast Scheduling over Wireless Systems
作者: Huang, Shiang-Ming
Hwang, Jenq-Neng
Chen, Yaw-Chung
資訊工程學系
Department of Computer Science
關鍵字: Feedback reduction;opportunistic multicast scheduling (OMS)
公開日期: 1-Dec-2010
摘要: Opportunistic multicast scheduling (OMS) requires the subscribers to feed back their instantaneous channel conditions frequently, and the feedback load increases linearly as the number of subscribers in the system increases. In this letter, we propose a Weakly Consistent OMS scheme for feedback reduction. The contribution of the proposed scheme is twofold: 1) feedback load is reduced while the multicast throughput performance remains comparable with the case of full feedback, and 2) no precise knowledge of the wireless fading channel is required. Performance evaluation through realistic WiMAX simulations shows that our proposed scheme can significantly reduce 65% of the feedback load while achieving 98% multicast throughput performance compared with the case of full feedback.
URI: http://dx.doi.org/10.1109/LCOMM.2010.12.101406
http://hdl.handle.net/11536/31900
ISSN: 1089-7798
DOI: 10.1109/LCOMM.2010.12.101406
期刊: IEEE COMMUNICATIONS LETTERS
Volume: 14
Issue: 12
起始頁: 1179
結束頁: 1181
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