Reliable secure multicast communication in mobile adhoc networks is challenging due to its inherent characteristics of infrastructure-less architecture with lack of central authority, high packet loss rates and limited resources such as bandwidth, time and power. Many emerging commercial and military applications require secure multicast communication in adhoc environments. Hence key management...

A Vehicular Ad hoc Network (VANET) is a most popular application of Mobile Ad hoc Networks (MANETs). A lot of research work around the world is being conducted to design an efficient routing protocol for VANETs. In this paper, we examine the significance of Greedy Forwarding with Border Node based approach for VANETs. We propose a position based routing protocol to forward packet to the border ...

A major issue with ad hoc networks is energy consumption since nodes are usually mobile and battery operated. A recent trend in ad hoc network routing is the reactive on-demand philosophy where routes are established only when required. This paper proposes a new scheme called Efficient Power Routing DSR (EPRDSR) to improve existing on-demand routing protocols by introducing the power efficient ...

This paper reevaluates the multicast protocols for MANETs in terms of energy efficiency and proposes a new robust multicast protocol, called Two-Tree Multicast (TTM). Multicast protocols can be broadly categorized into two types, tree-based multicast and mesh-based multicast, based on the network structure along which multicast packets are delivered to multiple receivers. Mesh-based protocols a...

Most existing routing protocols follow the shortest route for routing between sources to destination with minimum hop count. However the delay between two communicating nodes, energy consumption of nodes and network lifetime are never considered through this shortest route. It makes difficult to select a long lasting route between the nodes in network. To achieve optimal path, we have proposed ...

In this paper, we study multicast protocols for Mobile Ad-Hoc Networks, and specifically OLSR networks. We describe and compare three multicast protocols, namely MOST (Multicast Overlay Spanning Tree), MOLSR (Multicast OLSR) and SMOLSR (Simple Multicast OLSR), with different approaches and properties with respect to scalability. Our approach is simulation-based: through different scenarios and ...

Event detection is important in many sensor network applications. Traffic in these applications exhibits a many-to-one pattern, in which multiple source nodes send sensing data to a single sink node. Since bandwidth and storage capacity is highly constrained in sensor networks, packet loss is inevitable when a great deal of traffic rushes to sink. Based on the observation that the packets are n...

The dynamic changes of the topology caused by the movement of nodes makes routing become one of the key problems in the mobile Ad Hoc Networks (MANET). So how to optimize routing becomes a hot and difficult topic, among which optimizing routing cache is one of the key techniques. In this paper, we propose an adaptive dynamic cache routing (DCR) strategy based on DSR (Dynamic Source Routing), wh...

The main problem concerning laptops and handheld devices is the limited battery power, their batteries lifetime have a significant impact on the performance of ad hoc networks since nodes in ad hoc networks need to relay their packets through other nodes. In this paper, fuzzy controllers take number of hops, packet queue occupancy, and remaining energy along the paths into account while picking...

 Abstract—Multicasting, which is a one-to-many communication, is motivated by the increasing importance of real-time and multimedia applications with different QoS requirements. The QoS metric considered in this work is the bandwidth. We approach this problem by assuming a common channel shared by all hosts under a TDMA (Time Division Multiple Access) channel model. In this paper, we propose a...