This paper compares the performance of on-demand Directional Node-Disjoint Multipath Routing (DNDMR) protocol with those of contemporary wireless ad hoc network routing protocols. DNDMR protocol especially performs well for grid-style network topology. Multipath routing inherently allows the establishment of multiple routes between source and destination. The important features of DNDMR are pat...

Routing of VANETs is a challenging issue that has attracted many attentions of researchers recently. Contention based routing protocols have good congruity with high mobility of nodes in this kind of networks. Prevention from forwarding duplicate packets is an important challenge in such routing protocols. Indeed, such duplications can reduce scalability and efficiency of contention based routi...

Recently, quality-of-service routing in dynamic, wireless multi-hop ad hoc networks becomes a hot research topic, and various QoS protocols are proposed Even so, popular QoS routing protocols rarely provide multiple routes. Once links break due to node mobility, establishment of new routes leads to large control overhead and more end-to-end delay. In MANETs to support multimedia applications su...

As the wireless nodes are having limited battery life, energy efficiency is the most important design consideration in mobile ad hoc networks. Many multipath routing schemes are possibly exploiting multiple disjoint routes between any pair of source and destination in order to provide aggregated bandwidth, fault-tolerance and load-balancing properties. Hence we propose an optimized energy effic...

Route caching strategy is important in on-demand routing protocols in wireless ad hoc networks. While high routing overhead usually has a significant performance impact in low bandwidth wireless networks, a good route caching strategy can reduce routing overheads by making use of the available route information more efficiently. In this paper, we first study the effects of two cache schemes, “l...

One of the important characteristics of VANETs is the multi-hop communications, which provides Vehicleto-Vehicle(V2V) communication for many applications. In order to adapt to mobility in high speeds and limited-time communication links, traffic aware routing was proposed in many research works. As a type of position based routing protocols, traffic aware routing utilizes vehicles’ positions an...

The goal of Quality-of-Service (QoS) routing is to find a network path which has suficient resources to satisfy certain constraints on delay, bandwidth and/or other metrics. The network state information maintained at every node is often imprecise in a dynamic environment because of nonnegligible propagation delay of state messages, periodic updates due to overhead concern, and hierarchical sta...

We propose and analyze a class of integrated social and quality of service (QoS) trustbased routing protocols in mobile ad-hoc delay tolerant networks. The underlying idea is to incorporate trust evaluation in the routing protocol, considering not only QoS trust properties but also social trust properties to evaluate other nodes encountered. We prove that our protocol is resilient against bad-m...

Wireless ad hoc networks offer attractive features, including flexibility, self-organization and dynamic network creation. Due to the limited bandwidthand energy-resources in ad hoc networks, minimization of controland processing overhead is desirable. In this paper we focus on transport overhead reduction by means of header compression techniques. The potential of header compression in ad hoc ...

The existing protocols for the Internet connectivity of Mobile Ad Hoc Networks suffer from a high overhead since they often rely on flooding in executing mobility management and/or route discovery. In this paper, we propose a tree link state routing protocol in which a mobility management protocol builds topology information at the Internet Gateway (IG) as well as manages mobile nodes using tre...