Ad Hoc Networks All the challenges of wireless, plus some of No fixed infrastructure Mobility(on short time scales) Chaotically decentralized(:-) Multi-hop! Nodes are both traffic sources/sinks and forwarders The big challenge: Routing Lecture25:11-302006 13
Lecture 25:11-30-2006 13 Ad Hoc Networks • All the challenges of wireless, plus some of: • No fixed infrastructure • Mobility (on short time scales) • Chaotically decentralized (:-) • Multi-hop! • Nodes are both traffic sources/sinks and forwarders • The big challenge: Routing
Ad Hoc Routing Find multi-hop paths through network Adapt to new routes and movement environment changes Deal with interference and power issues Scale well with #t of nodes Localize effects of link changes Lecture25:11-302006 14
Lecture 25:11-30-2006 14 Ad Hoc Routing • Find multi-hop paths through network • Adapt to new routes and movement / environment changes • Deal with interference and power issues • Scale well with # of nodes • Localize effects of link changes