Present Internet has been developed approximately for past forty five years. Nowadays many network researchers are involved in wireless communications. Wireless networks allow hosts and routers to roam without the constraints of wired connections. Therefore, the network topology can be dynamic and unpredictable. Traditional routing protocols used for wired networks cannot be directly applied to...

This paper presents a framework for node distribution with respect to density, network connectivity and communication time. Using NS2, we evaluate and compare performance of three routing protocols; Ad-hoc On-demand Distance Vector (AODV), Dynamic Source Routing (DSR) and Fisheye State Routing (FSR) both in MANETs (IEEE 802.11) and VANETs (IEEE 802.11p). We further enhanced these protocols by c...

In mobile ad hoc wireless networks (MANETs), traditional protocol like AODV performs well for low mobility of nodes but not for high node mobility. So, it becomes important to consider mobility factor during the path selection procedure of routing protocol. Here, a fuzzy logic mobility based protocol (FLMAODV) that considers the mobility factor is proposed. Due to the consideration of mobility ...

There are a number of implementations of the Ad-hoc On-demand Distance Vector (AODV) routing protocol available for the Linux platform, but not for any other platform. Development of ad-hoc routing protocols has been slow because current operating systems do not provide adequate direct system-services for their implementation. This dissertation presents a design, implementation, and evaluation ...

In Ad hoc networks, malicious nodes can enter in radio transmission range on the routing path and disrupt network activity. Therefore, protecting from intrusion of malicious node and enhance data security is an important issue on Ad hoc networks. In this study, we provide a path hopping method based on reverse AODV (R-AODV). By reverse AODV, source node builds multipath to destination and adapt...

Most of the adhoc routing protocol research work has been done using simulation only because of the difficulty of creating real implementation. In simulation the developer controls the whole system, which is in effect only a single component. An Implementation, on the other hand, needs to interoperate with a large complex system and the system components. In this paper we focus on working imple...

Ad Hoc network is a network without physical structure and is established with mobile nodes using wireless connections. Ad Hoc network is highly flexible and supports dynamic network topology. Thus, the efficiency of the routing protocol will affect the overall network performance. Mobile ad hoc networks carriage several kinds of security problems, initiated by their open systems and nature of ...

A Mobile Ad-hoc Network (MANET) is a self-configuring infrastructure less network of mobile devices connected by wireless links. In this network technology, simulative analysis is a significant method to understand the performance of routing protocols. In this paper three protocols AODV, DSDV and DSR were simulated using Manhattan Grid Mobility Model. The reactive (AODV, DSR) and proactive (DSD...

An ad hoc network is a collection of wireless mobile nodes dynamically forming a temporary network without the use of any pre-existing network infrastructure. A number of ad hoc routing protocols have been developed during the time, but none of these is able to produce efficient routing of packets in large number of nodes due to their own limitations. Therefore, scalability is an open issue in ...

The frequent change of network topology in mobile ad-hoc network leads to the stability and reliability problems of routing. Many routing schemes such as multi-path routing and backup path routing are proposed to increase the link reliability. Multi-path routing protocols usually concentrate on load balancing or disjoint routing. However, the problem of packet loss caused by re-routing from the...