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ȯɽÂêÌÜ¡§Seamless Handover Management for VoIP Application in Heterogeneous Networks
ȯɽ³µÍס§Future wireless network consist of various types of wireless access technologies. Today, IEEE 802.11 standard has been dominant WLAN standard and widely deployed to provide high data rate in a limited coverage range. On the other hand, the emerging mobile WiMAX (802.16e) standard promises to rapidly provide broadband access with the long coverage range to mobile user but quality issues in indoor area is still questioned. Therefore, the 802.16e need to be co-existed with existing 802.11 technology in order to combine their best features while mediating drawbacks of both networks. To enable interoperability between 802.16e and 802.11, handover management plays an important role because mobile user is likely to traverse several hotspots/hotzones. In our research, we are working on building a handover management scheme between 802.16e and 802.11