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Explore the significance of mobile computing in military operations, focusing on devices like Nokia E61 smartphones for security, medical care, e-learning, and sports. Discover how mobile wireless devices enable high mobility users to seamlessly connect through various access points. Delve into mobility classification protocols and routing mechanisms for Mobile Ad hoc Networks (MANETs), comparing proactive and reactive routing schemes like DSDV and OLSR. Gain insights into the evolution of mobility protocols and their impact on network performance and efficiency.
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Sideseadmed (IRT0040)2.5 AP AvoLOENG 5
Military Response Mobile Computing: Why? Nokia E61 Home Security Gambling Home medical care E-learning Sports Streaming Movies
Markets for IP Mobility [Source:Cisco]
Mobile Wireless Devices Laptop Smartphone Media Player Palmtop Digital Camera Mobile Router Personal Digital Assistant Notebook Pager Gaming Console
No mobility High mobility Moderate mobility mobile user, passing through multiple access point while maintaining ongoing connections (like cell phone) mobile user, connecting/ disconnecting from network using DHCP. mobile wireless user, using same access point Mobility Classification Protocols
Mobility Global Macro Micro MIP (1996) Hierarchical MIP (1996) Cellular IP (1998) Hawaii (1999) Dynamic Mobility Agent (2000) TeleMIP (2000) Time (evolutionary path) MIPv6 (2001) TMIP (2001) HMIPv6 (2001) Intra-subnet Inter-domain Intra-domain Mobility Classification Protocols
Routing Protocols for MANETS Unicast-Routing Protocol for MANET (Topology-based) CBRP Table-Driven/ Proactive Hybrid On-Demand-driven/Reactive Clusterbased/ Hierarchical Distance- Vector Link- State ZRP DSR AODV TORA LANMAR CEDAR DSDV OLSR TBRPF FSR STAR MANET: Mobile Ad hoc Network (IETF working group)
Proactive vs Reactive Routing • Proactive Routing Protocols (DSDV, OLSR) • + Routes to all reachable nodes in the network available. • + Minimal initial delay for application. • - Larger signalling traffic and power consumption. • Reactive Routing Protocols (DSR, CBR etc) • + Smaller signalling traffic and power consumption. • - A long delay for application when no route to the destination available
Proactive protocols Determine routes independent of traffic pattern Traditional link-state and distance-vector routing protocols are proactive Examples: DSDV (Dynamic sequenced distance-vector) OLSR (Optimized Link State Routing) Reactive protocols Maintain routes only if needed Examples: DSR (Dynamic source routing) AODV (on-demand distance vector) Hybrid protocols Example: Zone Routing Protocol (intra-zone: proactive; inter-zone: on-demand) Routing Protocols: Overview
Lingid (1) http://en.wikipedia.org/wiki/Ad_hoc_routing_protocol_list http://www.cs.cmu.edu/~dmaltz/dsr.html http://en.wikipedia.org/wiki/AODV http://www.olsr.org/?q=about http://www.ietf.org/rfc/rfc3626.txt www.cs.binghamton.edu/~nael/cs527/notes/adhoc-routing1.pp