Mobility assessment for MANETs requiring persistent links
WiTMeMo '05 Papers presented at the 2005 workshop on Wireless traffic measurements and modeling
An analysis framework for mobility metrics in mobile ad hoc networks
EURASIP Journal on Wireless Communications and Networking
Implementing distributed multicost routing in mobile ad hoc networks using dsr
Proceedings of the 6th ACM international symposium on Mobility management and wireless access
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Most existing on-demand mobile ad hoc networkrouting protocols continue using a route until a linkbreaks. During the route reconstruction, packets can bedropped, which will cause significant throughputdegradation. In this paper, we add a link breakageprediction algorithm to the Dynamic Source Routing(DSR) protocol. The mobile node uses signal powerstrength from the received packets to predict the linkbreakage time, and sends a warning to the source node ofthe packet if the link is soon-to-be-broken. The sourcenode can perform a pro-active route rebuild to avoiddisconnection. Experiments demonstrate that adding linkbreakage prediction to DSR can significantly reduce thetotal number of dropped data packets (by at least 20%).The tradeoff is an increase in the number of controlmessages by at most 33.5%. We also found that the pro-activeroute maintenance does not cause significantincrease in average packet latency and average routelength. Enhanced route cache maintenance based on thelink status can further reduce the number of droppedpackets.