The highly dynamic character of a mobile ad-hoc network (MANET) poses significant challenges on network communications and resource management. Previous work on routing in MANETs has resulted in numerous routing protocols that aim at satisfying constraints such as minimum hop/distance or low energy. Existing routing protocols often fail to discover stable routes between source and sink when rou...

One of the important and challenging problems in the design of ad hoc networks is the development of an efficient routing protocol that can provide high-quality communications among mobile hosts for that proposing new protocol to evaluate the node lifetime and the link lifetime utilizing the dynamic nature, such as the energy drain rate and the relative mobility estimation rate of nodes. Integr...

A route-based dynamic strategy is developed for efficient preemption of traffic signals for emergency vehicles in real time. The proposed method combines an on-line route selection module and a sequential dynamic preemption strategy, so that traffic queues at the intersections on a given emergency route can be cleared in advance for an emergency vehicle, while minimizing delay because of unnece...

Dynamic Route Guidance System, which can provide the drivers with the optimal routes, is one of the most efficient solutions to the traffic jam. This paper presents a bee inspired zonal vehicle routing algorithm to provide a reasonable and effective optimal route for the Dynamic Route Guidance System. Firstly, the proposed algorithm divided the whole traffic network into different traffic guida...

This project explores visualizations for route maps that are displayed on a smartphone. Route finding and following is a multitasking situation that would benefit from better readability of the map, as it would decrease the cognitive effort required for the user to synthesize the information they need to follow the route. This can be done through various information visualization techniques, su...

Flood disaster is often characterized by dangers that strengthen and spread over time (Opasanon S., 2004). Such dynamic situational changes over time might make the shortest route not always the optimal and safest one. From field surveys of real cases such as the Niigata flood disaster in 2004 (Gunma University, 2004; Intensive Heavy Rainfall Disaster Policy Committee, 2004), many people know w...

Mobile Ad hoc network consists of a set of mobile nodes. It is a dynamic network which does not have fixed topology. This network does not have any infrastructure or central administration, hence it is called infrastructure-less network. The change in topology makes the route from source to destination as dynamic fixed and changes with respect to time. The nature of network requires the algorit...

On-demand routing protocols for mobile ad hoc networks utilize route caching in different forms in order to reduce the routing overheads as well as to improve the route discovery latency. For route caches to be effective, they need to adapt to frequent topology changes. Using an ondemand protocol called “Dynamic Source Routing” (DSR), we study the problem of keeping the caches up-to-date in dyn...

Building an intelligent route guidance system is increasing important to ease traffic congestion pressure in fast growing cities, as a result of the urbanization trend. In another aspect, the network infrastructures promoted by the ideology of digital city reinforce the Intelligent Transportation Systems (ITS), which provides innovative resolutions to the challenge. As traditional centralized d...

We consider an online routing problem in continuous time, where calls have Poisson arrivals and exponential durations. The first-fit dynamic alternative routing algorithm sequentially selects up to d random two-link routes between the two endpoints of a call, via an intermediate node, and assigns the call to the first route with spare capacity on each link, if there is such a route. The balance...