IEEE 802.16e-2005 standard defines a framework for tracking subscriber stations as they move from the coverage range of one base station to another when active or as they move from one paging group to another when idle. The architecture also supports IP-layer mobility using mobile IP.
Three handoff methods are supported in IEEE 802.16e-2005:
1. hard handover (HHO) - Mandatory
2. fast base station switching (FBSS) - Optional
3. macro diversity handover (MDHO) - Optional
Tuesday, August 31, 2010
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