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Routing protocols in Mobile Ad Hoc Network

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Presentation transcript:

Sideseadmed (IRT0040) 2.5 AP Avo LOENG 5

Mobile Computing: Why? Nokia E61 Home Security Gambling Home medical Military Response 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

Mobility Classification Protocols No mobility High mobility mobile wireless user, using same access point mobile user, passing through multiple access point while maintaining ongoing connections (like cell phone) mobile user, connecting/ disconnecting from network using DHCP. Moderate mobility

Mobility Classification Protocols Micro Macro Global Intra-subnet Intra-domain Inter-domain Cellular IP (1998) TMIP (2001) TeleMIP (2000) Hierarchical MIP (1996) Hawaii (1999) Dynamic Mobility Agent (2000) HMIPv6 (2001) MIP (1996) MIPv6 (2001) Time (evolutionary path)

Tavalahendus

Lahendus multihop

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

Routing Protocols: Overview 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 DSR (Dynamic source routing) AODV (on-demand distance vector) Hybrid protocols Example: Zone Routing Protocol (intra-zone: proactive; inter-zone: on-demand)

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