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In delay tolerant mobile sensor networks, the application may sometimes require informing all the sensor nodes in the network about the presence of a message while delivering it to a specific destination node. But, due to constraints on buffer space, it is not efficient to keep these message copies in the buffer of all nodes. In this paper, we propose a probabilistic approach for information dissemination...
Opportunistic Mobile Social Networks (MSNs) are a type of delay-tolerant networks that are composed of mobile nodes with social characteristics. Most of current research on forwarding algorithms for MSNs leverages the properties of social networks, such as community and centrality. However, the fundamental property, interaction, has not received sufficient attention. The effects of interactions consist...
In mobile ad hoc networks (MANETs), when information about the location of the destination node is known, efficient communication can be achieved by using location-based routing protocols. Even in location-based routing protocols, with omnidirectional antennas there is some redundant route discovery by blind flooding of route request packets outside the area between the source and destination. These...
Mobile ad-hoc network is networks that are collection of mobile device that can communicate and share information between each other, without any predefine infrastructure or centralized system. Another challenge in MANET is energy constraints because each of the mobile nodes is operated by limited energy battery. This paper presents a new on-demand power saving routing algorithm for mobile ad-hoc...
In a Wireless Sensor Network (WSN) Nodes are distributed to monitor an area of interest such as a military battlefield, and transmit their data to in-situ Base-Station (BS) through multi-hop paths. In addition to collecting and processing the sensor data, the BS performs network management tasks. Due to such an important role, an adversary would try to locate the BS and target it with Denial-of-Service...
Opportunistic Networks have been designed for transmitting data in difficult environments, characterized by high mobility, sporadic connectivity, and constrained resources. To sustain these networks, the literature describes methods such as Epidemic and Spray&Wait, which do not learn from the network behaviour, and Gossiping-based algorithms that collect historical network data to improve efficiency...
Routing protocols for Mobile Ad hoc Networks (MANETs) have been extensively studied. However, the presence of malicious nodes makes it difficult to establish a valid route. Some of the well-known source routing protocols presented in the literature which claim to establish secure routes are prone to hidden channel attacks. In this paper, we address this issue and present a novel protocol based on...
For making Mobile ad hoc network (MANET) more energy efficient swarm intelligence is used as a base and the clustered based approach as Bee-Ad Hoc-C which is an evolution from Bee-Ad-Hoc has been chosen as the best method in our previous work along with Stable Cluster Maintenance Scheme. In the proposed method parallel routing has been considered to improve the scalability of the system, reduce the...
A mobile adhoc network is an independent system of mobile stations associated by wireless link to form a system. This system can be modeled in the form of an uninformed graph. Adhoc networks are peer to peer, multihope networks were data packets are transmitted to a source to destination through intermediate nodes (which serve as router). The infrastructure is not the main issue to setup MANET and...
WSNs are gradually penetrating all spheres of security, industry and civil sectors. Since the very inception of the concept, a need for enhancing energy efficiency and longevity of the networks is felt. Routing protocols designed for WSNs have evolved over the years in order to serve this purpose better. This paper summarizes the concerns of a WSN and discusses how these were addressed through innovations...
Even in the absence of a physical network infrastructure, it is important that mobile devices can take advantage of the opportunities presented to them to maintain communication. Opportunistic networks are a class of mobile networks that must rely on unscheduled sporadic meetings between nodes to achieve communication. The main challenge in these networks is to route messages towards a destination...
This paper studies the exact per node throughput capacity of a MANET, where the transmission power of each node can be controlled to adapt to a specified transmission range v and a generalized two-hop relay with limited packet redundancy f is adopted for packet routing. Based on the concept of automatic feedback control and the Markov chain model, we first develop a general theoretical framework to...
Mobile Ad hoc Networks (MANETs) are used for node to node communications for a fixed purpose under mobile conditions. Different applications have found MANETs useful for communication tasks. The challenges while such a communication is performed are plenty. Although a number of protocols have facilitated the communication between mobile nodes, there is an unavoidable interruption in the network due...
In the era of the Internet of Everything, users with handheld or wearable devices equipped with sensing capability have become producers as well as consumers of information and services. The more powerful these devices get, the more likely it is that they will generate and share content locally, through ad hoc opportunistic connectivity, leading to the presence of distributed information sources and...
In this paper, we first present a heterogeneous theoretical framework for DTNs where the contact between nodes is based on independent differently distributed assumption. Moreover, the message forwarding process follows a Gamma Distribution. Then, we propose a new spray routing scheme based on this framework. Moreover, we compare our routing protocol with traditional spray routing (TSR) protocols...
Delay tolerant networks (DTNs) are sparse wireless networks. Node mobility, power outage and propagation cause disconnections regularly. DTN characteristics such as long delay, dynamic topology, and intermittent connections make routing a challenging matter. DTNs have many real applications such as military networks, interplanetary network, wildlife tracking, and etc. Message delivery ratio, dropped...
Information-centric networks have recently been drawing increasing attention in academia as well as in industry. Information and content retrieval is a critical service for mobile ad-hoc networks. It relies on other resources and tools, such as internal storage, content searching and sharing, delay-tolerant delivery, etc. Previous studies have shown that social networking can assist delay-tolerant...
The content routing protocols for MANETs proposed to date require the flooding of content requests or link-state advertisements. The Adaptive Publish-subscribe Distance Vector (APDV) protocol is presented as an alternative. APDV combines routing to well-known directories using distance-vector signaling with publish-subscribe mechanisms to discover content. Named data objects (NDO) are published with...
Opportunistic Mobile Networks (OMNs) are characterized by intermittent connectivity among the nodes, which results in lack of end-to-end communication paths. The nodes depend upon the other nodes for forwarding their messages and, therefore, the intermediate nodes play the crucial role of cooperation in forwarding the messages of the others nodes. Many existing mechanisms - for example, incentive-...
Heterogeneous Sensor Networks are more powerful and efficient than homogeneous sensor networks. It has been shown that homogeneous sensor networks perform poorly because of routine limits and scalability. In our research, we consider to use heterogeneous topology to securely route data in a wireless sensor network. The given area of interest is initially partitioned into Voronoi clusters, where low-end...
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