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Opportunistic Networks (OppNets) are a sub-class of wireless Delay Tolerant Networks (DTNs) that can be utilized in areas of sporadic network connectivity. OppNets consist of a network of mobile devices that cooperate with each other to forward messages from the source to the destination. However, in a practical real-world setting, nodes behave selfishly and do not choose to be cooperative all throughout...
Opportunistic Networks, a subset of Delay Tolerant Networks (DTNs), do not have a predefined source to destination end-to-end path and hence, offer a multitude of challenges with regard to security. In this paper a Potential Threat (PT) based security protocol has been developed which models the characters of the incoming nodes on the basis of swift delivery of messages, their reputation and history...
In Opportunistic Networks (Oppnets), a permanent fixed path is never assumed to be available between the source and destination. Nodes are not aware of changing network topology. So, static routing is not possible here and dynamic routing is best suited for such networks. In this paper, a Cloud Computing Based Routing Protocol (CCBRP) has been proposed for infrastructure-based Oppnets. It uses the...
Opportunistic Networks (Oppnets) are the recent evolution of Mobile Ad hoc Networks (MANETs), where an end to end path from the source to the destination does not exist, or exists for a very small amount of time. That is, the connections between the nodes are often intermittent, and the power of the nodes may go up or down. This paper aims at improving the forwarding strategy in the Epidemic routing...
In an Opportunistic Network (Oppnet), the transmission of messages between mobile devices is achieved in a store-carry-and-forward fashion since nodes store the incoming messages in their buffer and wait until a suitable next hop node is encountered that can carry the message closer to the destination. In such environment, due to the delay-tolerant nature of the network, designing a routing protocol...
Hundreds and thousands of small, limited battery operated sensor nodes constitutes wireless sensor network. These type of network is used for monitoring a variety of applications. The main goal of wireless sensor network is to send the sensed information to the base station as efficiently as possible through wireless links, to maximize the network life time. Among various energy efficient routing...
Mobile Ad-hoc Network (MANET) is a readily deployable wireless network suitable as a communication backbone during emergency response operations. These networks are infrastructure less. The goal of this paper is to simulate the scenarios for emergency situations. Various routing protocols have been proposed for MANETs like AODV, DSDV, LAR, DYMO, TORA etc. They are classified as proactive (table driven),...
Mobile Ad-hoc Network (MANET) is infrastructure less networks which can be rapidly deployed. This property makes MANET suitable in disaster management and such emergency situations. To analyse such scenarios, the node movements have been modelled variously as random waypoint, random walk, Manhattan grid model etc. Reference Point Group Mobility (RPGM) model is used in situations where nodes move in...
A mobile ad hoc network (MANET) is an infrastructure less and self-configuring network of mobile devices which dynamically form a network without the help of any centralized administration. Frequently changing network topology needs efficient dynamic routing protocols. The performance of any routing protocol depends on the duration of interconnection among the nodes in the network for transferring...
With emerging trend in technology wireless networks allow user to travel from one location to another. Mobile Adhoc network (MANET) is one of the subareas of wireless network that dynamically form infrastructure less temporary network. MANET is a collection of intercommunicating mobile nodes forming a temporary network without any centralized administration. Due to the dynamic property of mobile nodes...
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