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http://dx.doi.org/10.5909/JBE.2009.14.2.178

Sub-channel Allocation Scheme for Multi-media Service in AMC-based OFDMA Systems  

Song, Woo-Ram (Kangwon National University, College of Information Technology, Dept. of Electrical and Electronic Engineering)
Chong, Jo-Woon (KAIST, School of Electrical Engineering & Computer Science, Division of Electrical Engineering)
Kim, Dong-Hoi (Kangwon National University, College of Information Technology, Dept. of Electrical and Electronic Engineering)
Publication Information
Journal of Broadcast Engineering / v.14, no.2, 2009 , pp. 178-188 More about this Journal
Abstract
In this paper, we propose the method which provides efficient sub-channel allocation for handoff and new call supporting multi-media service in AMC-based OFDMA system. Firstly, we apply the multi-band method which provides different AMC method according to the location of user terminals. Also, in OFDMA system environment that a base station has a lot of sub-channels, we adopt the sub-channel allocation scheme that provides a higher priority to handoff call and real-time service about handoff and new calls with multi-meida service. The simulation results show that the proposed scheme plays a role in increasing the number of new and handoff calls meeting the required blocking rate.
Keywords
Sub-channel; Adaptive Modulation Coding; OFDMA; Multi-band; Multi-media Service;
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