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In the new millennium there has been a proliferation of mobile devices which include the likes of personal digital assistances (PDAs), laptops and smart phones. These mobile devices have a high market penetration rate even in the developing world. When two or more mobile devices within a radio communication range are able to communicate with each other a mobile ad hoc network (MANET) is formed. These...
Integrated Internet-MANET (IIM) architecture is a hybrid network which is an interconnection of the wired Internet and wireless MANET. This interconnection is facilitated through gateways. Some of the important issues in this integration are gateway discovery and gateway load balancing. So far, these issues have been addressed separately in the literature. The issues of gateway load balancing and...
MANET is a set of mobile devices with no fixed topology. Ad hoc means “for this purpose”. In MANET nodes are battery operated with dynamic network topology hence energy efficiency is an important design consideration to extend the lifetime of networks. Topology of network plays an important role for energy conservation. Topology control is to decide the transmission power of nodes and to increase...
In mobile ad hoc networks, each node can communicate with disconnected nodes by multi-hop transmission. In wireless communication, flame transmission failures occasionally occur due to obstacle, radio wave interference, moving of node, and so on. In IEEE802.11 MAC, a retransmission process is executed when such a failure occurs. However, there is a possibility that retransmissions continuously fail...
Transmission of data in infrastructureless mobile ad hoc network (MANET) is performed by cooperation among nodes which requires devising efficient routing schemes. When there is a possibility of non-cooperative and selfish behaviors of nodes in the network, in order to improve the performance, both trust and energy consumption associated with intermediate nodes should be jointly taken into account...
Mobile Ad hoc Networks (MANETs) have seen vast application and continuous development. A good number of protocols have evolved to perform efficient routing in MANETs in order to improve the communication. Two protocols Cooperative Opportunistic Routing Scheme in Mobile Ad Hoc Networks (CORMAN) and Proactive Source Routing (PSR) have been implemented for MANETs and their routing performance have been...
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...
An interconnection of mobile ad hoc network and wired Internet is called Integrated Internet-MANET. This interconnection is achieved through gateways. There are two very important issues in Integrated Internet-MANET. First, path load balancing in the communication of mobile nodes with gateways. Second, mobile nodes register with a gateway before communication begins. This registration is achieved...
Optimizing the three most important network performance parameters i.e. Delivery probability, Overhead ratio, and Delay is challenging in Delay Tolerant Networks (DTN) due to high occurrences of network partitioning in these networks. Owing to the partitioning nature efficient routing or dissemination of messages is important in DTN. In this paper, we focused to improve the spray phase of Binary Spray...
This paper addresses the problem of delivering data packets for highly dynamic mobile ad hoc networks in a reliable and timely manner. Most existing ad hoc routing protocols are susceptible to node mobility, especially for large-scale networks. Driven by this issue, we propose an efficient Position-based Opportunistic Routing (POR) protocol which takes advantage of the stateless property of geographic...
In Mobile Ad hoc Networks (MANET), mobile nodes are organized randomly without any fix access point. Due to the limited bandwidth and dynamic topology of nodes, the network congestion occurs. Congestion control is the main problem in ad-hoc networks. Congestion control is associated to controlling traffic incoming into a telecommunication network. The end-to-end Transmission Control Protocol (TCP)...
In MANETs (mobile ad hoc networks), mobile terminals can connect with each other directly and constitute communication networks without network infrastructure such as base stations and access points of wireless LANs that are connected to wired backbone networks. Therefore, MANETs are expected to be tolerant networks in an emergency situation (e.g., large earthquake) in which most infrastructure is...
Power preservation within wireless ad hoc networks is a decisive factor as energy resources are inadequate at the electronic devices in use. Power-aware routing strategies are fundamentally route selection strategies built on accessible ad hoc routing protocols. This paper proposes a new Maximal Power Conserved and Battery Life Aware Routing(MPC-BLAR) topology intended for mobile ad hoc networks that...
One major obstacle stunting the development and application of mobile ad hoc networks (MANETs) is the lack of a thorough understanding on the throughput capacity of these networks. Preliminary works regarding the exact capacity study of MANETs mainly focus on cell-partitioned networks, an oversimplified network model for practical MANETs. This paper studies the exact throughput capacity under a more...
In mobile ad hoc networks (MANETs), nodes have to cooperate in order to accomplish routing tasks. Nevertheless, they are generally composed of limited resources and may behave in a selfish way. In this paper, we propose a trust model for reactive routing in MANETs. The proposed solution is founded on a mechanism inspired by the CONFIDANT protocol to install and update trust in the network. It fits...
In this paper, we propose a geocasting forwarding scheme for mobile nodes in vehicle ad hoc networks. Geocasting is used for sending messages to nodes in a specified area. In this paper, we invest the concept of Fermat point region, a region that the sum of distances of the vertices of the triangle to this region is minimum, to forward packets. The Fermat point regions (FPRs) are used as routing regions...
Mobile ad hoc network (MANET) is a decentralized, multi-hop, and dynamic network with least infrastructure. Therefore, it is necessary that they should be self organizing, self healing, self configuring and adaptable to frequent changes in network. Ant Colony Optimization presents a problem-solving paradigm that suits the dynamicity and mobility of mobile ad hoc networks. In this paper we propose...
Mobile Ad hoc Networks (MANETs) is a collection of mobile nodes forming the network dynamically for exchange of information using the multi-hop wireless communications. Routing protocols for mobile ad hoc networks are designed with an assumption that the nodes will cooperate in packet forwarding between distant nodes using multi-hop communication. The cooperation between nodes does not exist always...
In mobile ad hoc networks (MANETs), to acquire only necessary data items, it is effective for each mobile node to retrieve data items using a top-k query. In our previous work, we proposed a routing method for top-k query processing to reduce traffic while keeping highly accurate query result by using a routing table. This method performs query transmission by unicast to each node which contributes...
It is a challenging problem to design the self-adaption, self-organization and self-configuration routing protocols for Mobile Ad Hoc Network (MANET). Ant colony routing (ACR) is a family of distributed bionic routing protocols based on swarm intelligence. A detailed investigation of the state of the art of ACR protocols is presented. Principle and model of ACR are introduced firstly. According to...
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