The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
Peer-to-Peer (P2P) overlays and Mobile Ad hoc Networks (MANETs) exhibit some common characteristics, such as dynamism, self-organization and decentralized control. The synergy between the two has been utilized by researchers to design distributed applications over MANETs. However, the available simulation platforms are far from perfect to evaluate the proposed designs. In most of the simulation platforms,...
In MANETs node's battery energy and stability of the links are often affecting the communication activities in network. These two factors are one of the main reasons which are responsible for the loss of data packets and occurrence of congestion issue that networks are facing toady. In order to overcome these issues we are proposing an approach known as Efficient and Stable Multipath Routing in MANETs...
TCP — Transmission Control Protocol acts as a logical vehicle for process to process communication. TCP ensures reliability in the form of flow control, error control and congestion control via ACK-Acknowledgement based transmissions. Wireless networks have limited spatial reuse scope which limits amount of data that can be in transmission within a specific geographical area at a time. In such scenarios...
In geographic routing schemes, packets are delivered to destinations based on the node location information. The geographic routing scheme is suitable for large-scale multi-hop wireless networks such as MANETs and VANETs because it works based only on the routing information obtained from the 1-hop beacon broadcasting. However, this routing information is limited in nature, resulting in frequent dead-ends...
A mobile ad-hoc network (MANET) which does not use a wired network and base station system is composed of a group of mobile and wireless nodes. In MANET, The device In MANET is not charging in time. Many method based on Connecting dominate set are utilizing to prolong the network lifetime. In this paper we propose a new greedy approach to obtain a stable routing path by integrating three factors such...
Mobile ad-hoc network (MANET) is the collection of various mobile nodes which are connected together over a wireless medium having no fixed infrastructure. Each participating node in the network acts as both router and host and responsible for forwarding packets for other nodes. Nowadays MANETs are becoming famous for their applications and features. In MANET identifying the security issues is major...
Due to the tremendous potential of MANETs (mobile ad hoc networks) for deployment in commercial and military services, a thorough understanding of network behaviour when exposed to challenges is essential for constructing a resilient and survivable MANET. Therefore, it is vital to have a comprehensive framework that can model it under various network attacks and challenges. The MANET environment has...
Mobile Ad Hoc Networks (MANETs) is a collection of mobile nodes connected with wireless links. Security a major challenge for these networks. All the nodes in MANET must co-operate with each other to route the packets. In any network the nodes are trust each other nodes. There are many trust management schemes to provide general framework for trust evidence in manets but these schemes cannot provide...
Conventional TCP suffers from inability to detect frequent link failure in MANET and consequently could not adjust RTO for reconstructed route. Packet losses due to link breakage must be differentiated from congestion loss to discover link breakage. Moreover, after link breakage, retransmission timeout in standard TCP becomes too long due to successive back-off executions. Using this long RTO for...
Mobile ad-hoc networks (MANETs) are dynamic in nature. Links between nodes may constantly change due to mobility. The performance of the transmission control protocol (TCP) degrades in such an environment mainly due to its inability to differentiate between congestion and link failures which are frequent in MANETs. Several TCP variants were proposed to adapt TCP to a mobile environment. In addition,...
Mobile Ad hoc networks are self-organizing and self-configuring multi hop wireless networks where, the structure of the network changes dynamically. Since a destination node might be out of range of a source node, a routing procedure is always needed to find a path, so as to forward the packets appropriately between the source and the destination. This paper proposes a new approach to evolve a suitable...
To support seamless communications for roaming users over heterogeneous wireless networks, mobile ad-hoc networks (MANETs) are receiving a special interest in the research community due to its infrastructure-less nature. MANETs can help to achieve a seamless service for users roaming over areas with no coverage from other wireless networks. As a result, MANETs are a key access network component of...
Mobile Ad Hoc Network (MANET) consists of a collection of wireless mobile hosts without the required intervention of any existing infrastructure or centralized access point such as base station. The dynamic topology of MANET allows nodes to join and leave the network at any point of time. Wireless MANET is particularly vulnerable due to its fundamental characteristics such as open medium, dynamic...
The conventional Mobile Ad-hoc Network (MANET) is composed of mobile nodes without any infrastructure. But, emergent traffic such as disaster positioning by using wireless infrastructure is indeed required. Therefore, network deployment for ad-hoc would associate WiMax with WiFi which is called 802.16e MANET Environment in this paper. Based on the 802.16e MANET environment, we propose a novel Hierarchical...
A rapid increase of wireless networks and mobile computing applications has changed the landscape of network security. A MANET is more susceptible to the attacks than wired network. As a result, attacks with malicious intent have been and will be devised to take advantage of these vulnerabilities and to cripple the MANET operation. Hence we need to search for new architecture and mechanisms to protect...
Ad-hoc networks have been the focus of research interest in wireless networks since 1990. Nodes in an ad-hoc network connect to each other dynamically in an arbitrary manner. The dynamic features of ad-hoc networks demand a new set of routing protocols that are different from the routing schemes used in traditional wired networks. A wide range of routing protocols have been proposed by researchers...
Mobile adhoc network(MANET) is a ??on the fly?? network of mobile nodes. Packets are routed through mobile nodes instead of any fixed base station. (AODV) is most adopted routing protocol in MANET where a path is established when a node wants to communicate with another node. The period over which the communication proceeds through this path is known as a Session. When the mobility in the network...
The integration of different wireless networks such as cellular networks, WLANs and MANETs with a core IP network is an extremely complex and challenging task, involving issues at all layers of the protocol stack. It is expected that the future advancements in such an integrated heterogeneous network technology would provide a variety of services to the network users. For achieving the end- to- end...
In this paper, we propose a hybrid routing protocol based on the k-hop clustering structure for MANETs. The source sends packets to the destination directly if it is in the source's neighbor table; otherwise the source reactively sends the route request packet (RREQ) to trigger the routing process. Instead of adopting the nodes that forwards the RREQ as the route between the source and destination,...
A mobile ad hoc network (MANET) is a infrastructure less network comprising of mobile nodes which dynamically form a network without the help of any centralized administration. Frequently changing network topology needs efficient dynamic routing protocols. We compare the performance of two on-demand routing protocols for mobile ad hoc networks dynamic source routing (DSR) and ad hoc on-demand distance...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.