Micro-Mobility Support in Wireless Networks. Motivation More Users: more portables and PDAs More Users: more portables and PDAs Need for Connectivity.

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Presentation transcript:

Micro-Mobility Support in Wireless Networks

Motivation More Users: more portables and PDAs More Users: more portables and PDAs Need for Connectivity all the time Need for Connectivity all the time High speed WLANs already installed High speed WLANs already installed More bandwidth hungry application (audio &video) More bandwidth hungry application (audio &video)

Why Mobile IP is not enough? Signaling increased Signaling increased –Registration –Handoff More latency (HA may be far) More latency (HA may be far) Packet loss Packet loss No paging No paging

What is Micro-mobility? Mobility within a domain Mobility within a domain No need for registration for handoffs within the domain No need for registration for handoffs within the domain Support Paging Support Paging

Functions Handoff Handoff Paging Paging Security Security Quality of Service Quality of Service

Classification Hierarchal Tunneling Hierarchal Tunneling –Example: Hierarchal Mobile IP Routing-Based Routing-Based –Example: Cellular IP & Hawaii

Hierarchal Mobile IP Handoff Handoff Paging Paging

Cellular IP & Hawaii Handoff Handoff Paging Paging

Future Work Standardization Standardization Open radio API Open radio API Quality of Service Quality of Service

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