Network virtualisation has been recently presented as a mean to overcome the saturation of the current Internet by sharing the same infrastructure by different network operators. This work considers virtualisation of the wireless medium, a way to share common network physical resources by different Virtual Operators based on a Time Division Multiple Access technique. We propose an Adaptive Weig...

1. Abstract High quality video transport under ad hoc network is a challenging task due to low bandwidth, high loss rate, unpredictable node mobility, and severe interference characteristics of such kind of network. End to end packet delivery often exhibits low performance due to one hop-by-hop routing failure and misinterpretation to such failures. We present video diffusion technique, which u...

In this research article of modeling Underwater Wireless Sensor Network Simulators, we provide a comprehensive overview of the various currently available simulators used in UWSN modeling. In this work, we compare their working environment, software platform, simulation language, key features, limitations and corresponding applications. Based on extensive experimentation and performance analysi...

MANET [1, 2] is an autonomous system in which mobile hosts connected by wireless links [3] are free to move randomly [4] and often act as routers at the same time. Node failures and arbitrary movement of nodes break the routes and lead the frequent operation of rebuilding routes that consume lots of the network resources and the energy of nodes. This means we need a routing protocol that can en...

This paper provides an extensive experimental evaluation of the gossip technique that has been proposed to construct scalable and reliable multicast protocols. This evaluation has been done by simulating several gossip and non gossip-based multicast protocols in a network simulator NS2. The evaluation comprises of three parts: (1) a comparison of the gossip technique with other traditional mess...

Intruder detection is an important application in Wireless Sensor Networks (WSNs). Barrier coverage, which requires much fewer sensors than full coverage, is broadly known as an appropriate model of coverage for such an application. However, previous works all focus on providing 1D barrier coverage on a thin belt region based on global network information. In this paper, we introduce the concep...

This paper analyzes application level performance during a range attack in ad hoc networks. This new denial of service (DoS) attack is based on periodical changes in the transmission range of a wireless node. It is very difficult to detect this attack, because it is perfectly normal for the transmission range to vary. The main contribution of this paper is to present two cross-layer designs for...

Mobile Ad hoc Network (MANET) is a infrastructure less network in which two or more devices have wireless communication which can communicate with each other and exchange information without need of any centralized administrator. Each node in the ad hoc network acts as a router, forwarding data packets for other nodes. The main issue is to compare the existing routing protocol and finding the b...

MANETs are more susceptible to attacks than a wired network. High mobility, lack of central administration, etc. are some of the main causes. One of the DOS attacks known as Jellyfish Attack is difficult to analyze as well as to detect in MANETs as Jellyfisher nodes follow all the protocol rules. There are mainly three classes of jellyfish attacks named as a Jellyfish Reorder Attack, Jellyfish ...

Congestion is an important issue which researchers focus on in the Transmission Control Protocol (TCP) network environment. To keep the stability of the whole network, congestion control algorithms have been extensively studied. Queue management method employed by the routers is one of the important issues in the congestion control study. Active queue management (AQM) has been proposed as a rou...