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8 articles for “ONE (opportunistic network environment)”
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Opportunistic Network Environment: A Multipurpose Simulation Tool for Wireless Networks
Abstract: In this paper, ONE simulator and its working is discussed with some practical examples. How to practically use ONE simulator is described in easy and proper manner. ONE is a wireless simulator used to simulate different wireless networks. In this simulator, different routing protocols, different attacks occurred in routing protocols can be implemented. Energy analysis congestion control can also be implemented in this simulator. This simulator is open, accessible, easy-to-use …
Published in Journal of Open Source Developments · Vol. 2, Issue 2, 2015 · pp. 30–34 Read article
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A Grade Based Scheme to Detect Malicious Nodes in Delay Tolerant Networks
Abstract: DTN is a network in which no direct contacts are present between network nodes. For data packet transmission in network, concept of intermediate nodes is used. Data transmission through intermediate nodes is not secure because unfortunately some intermediate nodes behave as malicious nodes. So security in DTN is a challenging task. Different types of malicious nodes perform different kind of attacks during data transmission. In this paper, present a grade …
Published in Journal Of Network security · Vol. 3, Issue 3, 2015 · pp. 17–21 Read article
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Simulation of Different Routing Protocols using ONE Simulator in Delay Tolerant Network
Abstract: DTN (Delay Tolerance Network) is a network which is specially designed to handle long partitions and frequent delays occurring in previous wireless network. In DTN data is transmitted in store carry and forward manner. In this paper an attempt has been made to simulate different existing DTN routing protocols. For simulation ONE (Opportunistic Network Environment) simulator is used. ONE is free and easy to use simulator. Simulation is performed on …
Published in Journal Of Network security · Vol. 3, Issue 2, 2015 · pp. 20–26 Read article
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Contact-Based Routing to Improve Delivery Ratio in DTN
Abstract: Delay tolerant networks (DTNs) are a new development in network research field. DTNs are the networks where no end-to-end paths are present between nodes for a long period of time. DTNs are wireless networks where disconnections and delays are high. DTN works on the principle of store, carry, forward mechanism. A store, carry, forward mechanism is a mechanism in which when a node receives a packet then it stores in …
Published in Journal Of Network security · Vol. 3, Issue 2, 2015 · pp. 36–43 Read article
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Cooperation Based Mechanism to Contrast Black Hole Attack in DTN
Abstract: AbstractDelay tolerant network (DTN) has intermittent node connectivity and nodes are highly mobile. Most often DTN behaves abnormally due to the presence of various malicious nodes and because of challenging environment they try to gain the benefit of presenting itself as a normal node. In this thesis, we focused on black hole attack. A black hole node silently removes or drops the packets without acknowledging the source and destination. When …
Published in Journal of Web Engineering & Technology · Vol. 3, Issue 3, 2016 · pp. 17–20 Read article
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An Encounter Based Routing Mechanism to Improve Delivery Ratio and Reduced Overhead Ratio in Opportunistic Networks
Abstract: OPPNETs (Opportunistic Networks) are wireless networks that have sporadic network connectivity, thus rendering the existence of instantaneous end-to-end paths from a source to a destination difficult or impossible. Hence, in such networks, message delivery relies heavily on the store-and-forward paradigm to route messages. However, limited knowledge of the contact times between the nodes poses a big challenge to effective forwarding of messages. In this paper, EBR (encounter based routing) is …
Published in Journal of Mobile Computing, Communications & Mobile Networks · Vol. 3, Issue 3, 2016 · pp. 27–32 Read article
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A Threshold Based Scheme to Detect Black Hole Attack in DTN
Abstract: Security in DTN is a challenging task. Numbers of misbehaving attacks are present in the network. In this paper we focus on Black Hole attack with the problem of misbehaving and propose a solution based on the concept of threshold and validation. Each node maintains a local value called status of node. A node “status” is the delivery probability of nodes so doing, a misbehaving node is not chosen even …
Published in Journal Of Network security · Vol. 3, Issue 2, 2015 · pp. 12–19 Read article
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A Reputation based Scheme to Detect a Black Hole Attack in MANET
Abstract: MANET is wireless network in which an end to end path is present between Network Security to MANET is wide problem. A black hole attack is an attack which drops the packets or provides wrong routing information to disturb routing process. In this paper we propose a new reputation based scheme to detect a black hole attack in MANET. In this scheme with the help of reputation of node we …
Published in Journal Of Network security · Vol. 3, Issue 2, 2015 · pp. 27–31 Read article