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In MANETs, nodes communicate to each other through multi hop routing, where routes often get disconnected due to random movement of nodes. Recent applications in real world scenario demand realistic networks which can support large number of nodes and hence, the recent researches in MANETs are focused on scalability of these networks, as none of the existing routing protocol addresses the scalability...
Mobile Ad Hoc Networks (MANETs) are increasingly being used in various applications for civilian, commercial, and military uses. However, unique characteristics of MANETs introduce several challenges such as routing and mobility management. Nodes frequent movements make routing more difficult due to frequent topology changes. Dynamic Source Routing (DSR) routing protocol is among the common routing...
The traditional Ad Hoc routing protocols do not scale well in heterogeneous networks, since they have not been designed to exploit different communication capabilities of network nodes. Building a heterogeneous hierarchical structure is a promising approach to achieve higher scalability in heterogeneous Ad Hoc networks. In this paper, we propose a novel heterogonous routing protocol based on DSDV,...
The objective of the work is to improve the mechanism for selecting trust nodes which will participate in the key generation process for secured group communication in a distributed environment like MANET. The selection is proposed in two stages, the first phase adopts clustering technique to identify trust worthy nodes across the network and the second phase makes use of the backtracking approach...
Mobile Ad-Hoc Networks (MANETS) will play a significant role in future tactical military networks. Tactical networks are required to support military operations in areas without access to a fixed network infrastructure. They are also characterized by frequent changes in network topology due to node mobility and intermittent line-of-sight (LOS) connectivity. The self-forming and self-healing nature...
A collection of mobile nodes in different speeds, transmission range random movement in absence of any static support of infrastructure is called a mobile adhoc network or MANET. In MANET, nodes have to announce their presence periodically and listen for their neighbors announcements broadcast to discover and learn how to reach each other. A new node is not familiar with its network topology at the...
Mobile ad hoc networks are increasingly finding their existence in the marketplace heading to a new paradigm of pervasive computing. However there are many areas open to research in the field. Due to node mobility resulting in an ever-changing network topology, conventional routing methods cannot be applied in MANETS. Therefore, this is one of the core areas of research. Researchers are challenged...
This paper present a new routing protocol for Ad hoc networks, called On-demand Tree-based Routing Protocol (OTRP). This protocol combines the idea of hop-by-hop routing such as AODV with an efficient route discovery algorithm called Tree-based Optimized Flooding (TOF) to improve scalability of Ad hoc networks when there is no previous knowledge about the destination. To achieve this in OTRP, route...
This paper reports the studies related to scalability of network size on our newly proposed routing protocol, genetic zone routing protocol (GZRP) for mobile ad hoc networks (MANETs). This protocol applies genetic algorithms (GA) to zone routing protocol (ZRP) for finding a limited set of multiple alternative routes to the destinations, in order to provide load balancing and fault tolerance during...
We propose a multipath-based segment-by-segment routing protocol in mobile ad-hoc networks (M-SSR). In M-SSR, a path is divided into multiple segments, in each of which multiple node-disjoint paths are discovered and routing maintenance can be performed independently. The proposed protocol can decrease congestion, optimize bandwidth and improve the sharing rate of channel by using multiple paths to...
Most research results of location services have been focused on nodes whose motions follow patterns of random waypoints. For inter-vehicular communications that happen in metropolitan areas, moving cars obviously travel on restricted directions along streets and make frequent stops over intersections. In this paper, we present intersection location service (ILS), a distributed hashing-based location...
Dynamic Source Routing (DSR) Protocol is a commonly applied reactive protocol for mobile ad hoc networks (MANETs). When the network size is increased, overhead is increased due to the source routing nature of DSR. Moreover, energy consumption of the nodes increases, as the nodes act as intermediate nodes for many source destination pairs. In order to improve the scalability of DSR, in this paper,...
Many peer to peer (P2P) systems have been proposed in wired networks. However, they are not directly applicable to wireless networks because of mobility and the lacking of routing mechanism. In this paper, we propose scalable, self-organizing, self-addressing, self-routing and location-a ware peer-to-peer system, abbreviated as SLAP, for mobile wireless ad hoc network (MANET). SLAP solves highly traffic...
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