The focus of this paper is on the rate and power control algorithms in Dedicated Short Range Communication (DSRC) for vehicular networks. We first propose a utility maximization framework by leveraging the well-developed network congestion control, and formulate two subproblems, one on rate control with fixed transmit powers and the other on power control with fixed rates. Distributed rate cont...

Power efficient multicast routing is one of the key issues in the field of mobile ad hoc networks. Multicasting is a term which refers to delivering data packets to a group of mobile nodes from an intended source. Quality of Service enlarges the support level of predictable performance for network systems. This research work focuses on design and development strategy of QoS aware power efficien...

In this paper, we propose a parallel algorithm for MANETs that optimizes both routing discovery and security in an Ad Hoc OnDemand Distance Vector (AODV). The new algorithm, termed as Parallel Grid Optimization by the Daddy Long-Legs Algorithm (PGO-DLLA), simulates the behavior of the biological spiders known as daddy long-legs spiders. Experiments were conducted on an NS2 simulator to demonstr...

In recent years, many MAC protocols for wireless sensor networks have been proposed and most of them are evaluated using Matlab simulator and/or network simulators (OMNeT++, NS2, etc). However, most of them have a static behavior and few network simulations are available for adaptive protocols. Specially, in OMNeT++/MiXiM, there are few energyefficient MAC protocols for WSNs (B-MAC & L-MAC) and...

This paper proposes an efficient algorithm for clustering nodes, classifying and replication of content on demand basis for content distribution in p2p overlay networks. Peer-to-peer overlay networks are a good solution for distributed computing than client-server model since nodes in P2P networks act both as client and server. With such functionality of managing replicas is an astonishing task...

A Vehicular Ad-hoc Network (VANET) is a collection of wireless vehicle nodes forming a temporary network without using any centralized Road Side Unit (RSU). VANET protocols have to face high challenges due to dynamically changing topologies and symmetric links of networks. A suitable and effective routing mechanism helps to extend the successful deployment of vehicular ad-hoc networks. An attem...

A wireless sensor network is a heterogeneous network consisting of a large number of tiny low-cost nodes and one or more base stations. These networks can use in various applications like military, health and commercial. However, the privacy preservation problem has drawn huge attention in the research community. This problem is exacerbated in the domain of WSNs due to the extreme resource limi...

There are two main classes of adaptive routing protocols in the internet: distance vector and link state. This paper presents the comparison between distance vector and link state. It also outlines the pros and cons of RIP and OSPF protocols and a performance analysis with some possible enhancement is presented. Network Simulator (NS2) is used to obtain the performance results of the two classe...

With the emergence of information and communication technologies, modern vehicles are well equipped with various applications such as navigators, GPS and other in-vehicle entertainment applications. Also increasing number of vehicles on the road day by day, give rise to the need of providing safety and comfort to the passengers. A new technology named VANET (Vehicular Ad-hoc Networks) has emerg...

IEEE 802.11 is the most popular and widely used standard for wireless local area network communication. It has attracted countless numbers of studies devoted to improving the performance of the standard in many ways. In this article, we performed theoretical analyses for providing a solution to the maximum throughput problem for the IEEE 802.11 distributed coordination function, and an algorith...