The introduction of Real-Time Network Routing (RTNR) into the AT&T Switched Network was completed in July 1991, and completely replaced dynamic nonhierarchical routing (DNHR). It has resulted in a marked improvement in network connection availability while simultaneously reducing network costs. RTNR has laid the foundation for an important service and quality advantage by introducing new class-...

Vehicular Ad-Hoc Networks can enhance road safety and enable drivers to avoid different threats. Safety applications, mobile commerce, and other information services are among different available services that are affected by dynamic topology, vehicle’s speed and node misbehaving. Dynamic topology makes the route unstable and unreliable. So, improving the throughput and performance of VANET thr...

This thesis develops new routing methods for large-scale, packet-switched data networks such as the Internet. The methods developed increase network performance by considering routing approaches that take advantage of more available network resources than do current methods. Two approaches are explored: dynamic metric and multipath routing. Dynamic metric routing provides paths that change dyna...

Inventory routing problems arise as simultaneous decisions in inventory and routing optimization. In the present study, vendor managed inventory is proposed as a collaborative model for reverse supply chains and the optimization problem is modeled in terms of an inventory routing problem. The studied reverse supply chains include several return generators and recovery centers and one collection...

In recent times, Wireless Sensor Networks (WSNs) is extensively used in numerous applications with enormously varying requirements and uniqueness. Due to the dynamically changing topology, improving Quality of Services (QOS) in WSNs has becomes hard. WSN have several different constraints in route selection such as energy, availability, computational power, buffer space, throughput etc. In orde...

The wide availability of mobile devices equipped with wireless communication capabilities together with the technical possibility to form ad hoc networks paves the way for building highly dynamic communicating communities of mobile users. A key challenge is how to deliver messages in such networks incurring least routing overhead. Cooperative routing is a mobile-agent assisted team approach, wh...

Increasing popularity and availability of portable wireless devices, which constitute mobile ad hoc networks, calls for scalable ad hoc routing protocols. On-demand routing protocols adapt well with dynamic topologies of ad hoc networks, because of their lower control overhead and quick response to route breaks. But, as the size of the network increases, these protocols cease to perform due to ...

The availability of inexpensive wireless networking hardware (e.g., based on the IEEE 802.11 standards) has generated interest in a large class of wireless applications. Many applications benefit from rapidly deployable networks—for example, collaborative applications to support field research or emergency incident response. The need for networks that can be rapidly deployed has resulted in a s...

Routing in adhoc networks is a challenge as nodes are mobile, and links are constantly created and broken. Present ondemand adhoc routing algorithms initiate route discovery after a path breaks, incurring significant cost to detect disconnection and establish a new route. Specifically, when a path is about to be broken, the source is warned of the likelihood of a disconnection. The source then ...