Vehicular Ad hoc Network (VANET) is very promising technique to increase traffic safety. This will help in saving life of many people from road accidents. VANET uses vehicle to vehicle communication to inform about the location of other vehicles and the traffic density. There are many routing protocols described in VANET. Position-based protocols are best suited in highly dynamic topology envir...

Reliable and on-time data delivery is a crucial parameter of network performance in highly dynamic mobile ad hoc networks. Leveraging on a modified 802.11 MAC tweak, guard nodes relay the packet with prioritized back off time when the intended node fails and becomes a contender nodes themselves. Previously used ad hoc routing protocols of MANETS are susceptible to node mobility, especially for ...

The Beacon-Less Routing protocol (BLR) is a positionbased routing protocol for mobile ad-hoc networks that makes use of location information to reduce routing overhead. However, unlike other position-based routing protocols, BLR does not require nodes to periodically broadcast hello messages and thus avoids drawbacks such as extensive use of scarce battery-power, interferences with regular data...

multi-path is favorite alternative for sensor networks, as it provides an easy mechanism to distributetraffic, as well as considerate fault tolerance. in this paper, a new clustering based multi path routingprotocol namely ecrr (energy efficient cluster based routing algorithm for improving reliability) isproposed, which is a new routing algorithm and guarantees the achievement to required qos ...

Caching for the Web can be bene cial in di erent ways: not only can it reduce network tra c and client response time, but it can also enable large scale server load balancing. In this paper, we present preliminary simulation data to characterize the performance of WebWave, a di usion-based caching protocol for server load balancing that we have recently proposed. Initial results suggest that We...

As sensor networks are deployed over various terrains, the complexity of their topology continues to grow. Voids in networks often cause existing geographic routing algorithms to fail. In this paper, we introduce a novel concept: virtual position to address this issue. A virtual position is the middle position of all direct neighbors of a node. Such virtual position reflects the neighborhood of...

Simulation is an essential tool to research in this area and NS-3 is seen as a very promising tool, due to the possibility of simulating complex scenarios. It was recently released to replace the popular NS-2, but it still supports a limited set of technologies. With the recent advances in vehicular networks, position-based routing is seen as an adequate strategy to mitigate the problems brough...