In ad hoc networks the broadcast nature of the radio channel poses a unique challenge because the wireless links have time-varying charac- teristics in terms of link capacity and link error probability. In mobile networks, particularly in vehicular ad hoc networks (VANETs), the to- pology is highly dynamic due to the movement of the vehicles, hence an on-going session suffers frequent path breaks. In this work we present a method that uses the available knowledge about the network topo- logy to improve the routing protocols performance through decreasing the probability of path breaks. We propose a scheme to identify long duration links in VANETs, which are preferentially used for routing. This scheme is easily integrated in the existent routing protocols. We describe how to integrate it in the Optimized Link-State Routing Pro- tocol. Finally, we evaluate the performance of our method with the original protocol. Simulation results show that our method exhibits better end-to-end path delay, higher packet delivery ratio and higher path duration than the original protocol. This observation is even more evident when the nodes density increases.
|Title of host publication||--|
|Publication status||Published - 1 Jan 2010|
|Event||33rd IEEE Sarnoff Symposium 2010 (Posters) - |
Duration: 1 Jan 2010 → …
|Conference||33rd IEEE Sarnoff Symposium 2010 (Posters)|
|Period||1/01/10 → …|