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Route discovery and maintenance in Mobile Ad-hoc Network (MANET) is a problem of long standing interest. In ad-hoc networks the Ad-hoc on demand Distance Vector (AODV) protocol assumes that discovered route is optimal and transmits data on it for the entire data session, whereas due to dynamic topology nodes change position dynamically, the optimum route may change. Thus, node mobility may give rise...
Multipath routing has been widely used in wireless sensor networks to improve mainly the network performance by providing the load balancing capabilities. However, high correlated paths can throttle data transfer and can cancel the benefits of using multiple routes for data forwarding towards the sink. In this context, we propose a Fast Multipath Routing Protocol (FMRP), a query based multipath routing...
The capacitated Fixed-Charge Network Design (FCND) problem deals with the simultaneous optimization of capacity installation and routing of traffic, where a fixed cost is paid for opening a link and a linear routing cost is paid for sending traffic flow on a link. The routing decision must be performed such that flows remain bounded by the installed capacities. This problem appears as a particular...
The communication network supporting Smart Grid applications must minimize the time that messages cannot be delivered and thus find alternative paths rapidly. At the same time, the control overhead in normal operation should be limited and not interfere with the data traffic. Hence the routing protocol for such networks has to trade-off these two conflicting goals. One of the candidate routing protocols...
In the last few years, Wireless Sensor Network (WSN) emerges and appears as an essential platform for prominent concept of Internet of Things (IoT). Their application ranges from so-called “smart cities”, “smart homes” over environmental monitoring. The connectivity in IoT mainly relies on RPL (IPv6 Routing Protocol for Low Power and Lossy Network) - a routing algorithm that constructs and maintains...
The main idea behind this paper is to convert the on-demand single path routing protocol into proactive multipath routing protocol in terms of predicting the link failure by utilizing the link state prediction algorithm and in terms of creating multiple routes by utilizing on-demand multipath routing approach. Generally, the reactive routing protocols and proactive routing protocols are completely...
With the rapid urbanization in China, the protection of water environment is more and more important. Urban sewage pipe network service is a new technology to store and manipulate spatial data, integrated with attribute data of sewage pipe network. This paper described a digital management platform of the urban sewerage pipe network service system based on Geographical information system (GIS) and...
In the Ad Hoc network of AODV protocol, local node occurs when a node is too high too expensive death network energy consumption and serious problem, the problem this paper proposes a optimal design of AODV protocol. According to the routing cost design an on-demand more lulu by establishing and maintaining method. Simulation shows that this method improved the performance of AODV network, reduce...
Beginning in the late 1960s, proprietary ATE systems were deployed by a wide range of customers for the functional test and verification of high value, mission critical products including board & box level avionics, depot level test & repair of armament and avionics electronics, and communications / satellite subsystems. These test systems are now obsolete, however the products (and their...
The contribution of this article is two local recovery methods that may reduce overhead and make a more immediate reconnection of disconnected nodes compared to the soft state global recovery method applied in WSNs running RPL [1]. In addition, we perform an analysis of the implication to better judge the context where local recovery methods should be used. One of our suggested methods is based on...
This paper proposes an enhanced scheme based on Associativity-Based Multicast Routing (ABAM) for Cognitive Radio Mobile Ad Hoc Networks (CR MANET) to further improve the stability of the multicast tree. After carefully studying the original ABAM design, the enhanced scheme is proposed from two aspects. One is in the tree formation phase, while the other is for node mobility handling. Both the original...
A Mobile ad hoc network (MANET) is a self-configuring network of mobile devices connected by wireless links. In MANET, all the nodes can move freely and independently, so topology is highly dynamic. The communication in MANET is uncertain because established route could be broken anytime. In this paper, we proposed a scheme to establish a more stable route during the route discovery process and once...
Mobile Ad Hoc Networks are wireless networks which comprise of mobile nodes that communicate over wireless media. Frequent link failures may occur in these networks due to mobility, energy depletion of node, transmission interference. Link failure leads to disconnectivity among nodes in the network and hinders ongoing data transmission. Traditional routing protocols provide best effort service in...
Routing in Mobile ad hoc Sensor Network (MASNet) have become a dynamic research area owing to its impact on various science and engineering applications. A secure multipath algorithm has been presented in this research which facilitates the nodes in MASNet to execute on-demand discovery and forming set of paths. An Enhanced Secure Multipath Routing (ESMR) is formed with an adaptive behaviour on route...
Dispatching ambulances is a demanding and stressful task for dispatchers. The aim of this work was to investigate if and to what extent the dispatch operation of the Red Cross Salzburg (RCS) can be optimized with a computerized system. The basic problem of a dynamic multi-vehicle Dial-a-Ride Problem (DARP) with time windows was enhanced according to the requirements of the RCS. The objective was to...
In the airline industry, the Aircraft Maintenance Routing (AMR) problem has been one of the great successes of operations research. The AMR problem is to determine a particular route for each aircraft to undergo different levels of maintenance checks. The objective is to minimize the total maintenance costs. In this study, our aim is to present a mathematical formulation for the AMR problem which...
In today's communication networks, distributed control functions such as routing inherit their design driven by processing capacity and memory consumption. Henceforth, the routing protocol decision process (distributed and online) remains still decoupled from the routing optimization process (centralized and offline). Distributed optimization does not take into account the distributed nature of the...
Many new research areas such as the Internet-of-Things (IoT) propose the interconnection of every days objects, changing the way how we interact with the environment and our world. One key building block of these new research areas are wireless multi-hop networks (WMHNs). Particularly, providing an energy efficient routing is one of the most challenging topics. Algorithms inspired by behavioral patterns...
Optical networks are crucial to support increasingly demanding cloud services. Delivering the requested quality of services (in particular latency) is key to successfully provisioning end-to-end services in clouds. Therefore, as for traditional optical network services, it is of utter importance to guarantee that clouds are resilient to any failure of either network infrastructure (links and/or nodes)...
The state of the art of Wireless Sensor Networks (WSNs) has enabled attainment of complicated and challenging applications such as healthcare, traffic control, habitat monitoring, etc.. For the last few years, clustering in WSNs has gained more consideration because of the improved ability of sensor nodes to conserve energy. In a dynamic WSN, clustering consists of two important stages: cluster formation...
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