Perkins_AODV - 1 © NOKIA FILENAMs.PPT DATE NN Ad Hoc...

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Unformatted text preview: 1 © NOKIA FILENAMs.PPT/ DATE / NN Ad Hoc Networking with AODV Charles E. Perkins Nokia Research Center Mountain View, CA USA http://people.nokia.net/charliep [email protected] 2 © NOKIA FILENAMs.PPT/ DATE / NN Outline of Presentation • Ad Hoc Networks in general • AODV in particular • Recent results from manet • Internet Gateways for ad hoc networks • Address autoconfiguration 3 © NOKIA FILENAMs.PPT/ DATE / NN Ad Hoc Network characteristics • peer-to-peer • multihop • dynamic • zero-administration • low power • autonomous • autoconfigured But, most of these have exceptions! Idea: let (?almost?) every node be a 4 © NOKIA FILENAMs.PPT/ DATE / NN Commercial (or not!) Opportunities • Conferencing • Home networking • Range extension for cellular base stations • Emergency services • Ambulance • Police • Hospitals • Embedded computing applications • Ubiquitous computers with short-range interactions • Automotive/PC interaction • Enable computing where subnets do not exist • Jungle telemetry 5 © NOKIA FILENAMs.PPT/ DATE / NN Technical/Market/Political hurdles • Scalability (memory search time, bandwidth, processing) • Power budget vs. latency • Protocol deployment, incompatible standards • Why should one node “waste power'' to help a neighbor ? • Wireless data rates • Obsoletes the client/server model... breaks a lot of protocols • User education, acculturation • Antenna inconvenience (not anymore, really) • Higher bit-error-rate (BER) • Additional security exposure • Non-ubiquitous coverage 6 © NOKIA FILENAMs.PPT/ DATE / NN On-Demand Routing Protocols • Eliminate route table updates for routes that are not used...
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Perkins_AODV - 1 © NOKIA FILENAMs.PPT DATE NN Ad Hoc...

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