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In this paper, a new topology discovery algorithm is proposed for Mobile Ad Hoc network and its application is developed on Linux system. With a mixing usage of mobile agents and data collection, the algorithm aims to solve the topology discovery issue in hierarchical Ad Hoc network scenarios instead of flat ones. The algorithm is implemented under Linux system and the test result shows that our algorithm...
The routing behavior of Mobile Ad Hoc Network is a kind of cooperation model in multi mobile nodes. The traditional routing methods cannot solve the problem of malicious behavior and build the trusted transfers route between nodes. Based on the character of trust routing, the subjective confidence for the routing behavior has transform into trust evaluation with the probability model to solve the...
This paper presents the implementation scheme of MIPv6 protocol and improvement of key technology based on Adhoc network in Linux. The framework of implementing MIPv6 protocol is designed. The key technology of protocol implementation procedure is proposed, and the handover delay of mobility is analyzed and reduced. Finally experimental scenarios are set up, and the performance of mobile handover...
In this paper, a novel mobile agent based topology discovery protocol is proposed for mobile ad hoc networks. Unlike existing protocols which also utilize mobile agents to collect topology information, the proposed protocol not only considers the fairness of the node visitation time by the agents, but also takes the frequency topology changes into consideration. The protocol optimizes the migrating...
This paper proposes a novel energy efficient data clustering scheme to improve energy efficiency for cluster-based wireless sensor networks (WSNs). In order to reduce the energy dissipation of transmitting sensing data at each sensor, the fixed clustering algorithm uniformly divides the sensing area into clusters where the cluster head is deployed to the centered of the cluster area. Moreover, to...
In mobile ad hoc networks (MANETs), one of the critical issues consists of the design of routing algorithms that are robust to frequent path disruptions caused by hostspsila mobility. This paper analyzes random walk mobility model, and establishes the relationship between a linkpsilas reliability and current lifetime via a conditional probability model. A path reliable routing algorithm is also developed,...
The nature of mobile ad hoc networks make the routing is highly dependent on cooperate behavior between nodes, and using reputation mechanism can enforce cooperation among the nodes to prevent selfish behavior. This article proposes a functional ontology for reputation routing mechanisms base on node behavior. In this ontology, the functional structures and conceptualize that compose the reputation...
Wireless sensor networks (WSNs) normally consist of large number of sensing nodes that organize themselves into multi-hop wireless networks. It is desirable for communication protocols to minimize the communication overhead and hence the energy consumption while keeping the data delivery relatively reliable. In this paper, we present a new routing protocol, called cross-layer AODV (CAODV), based on...
This paper focuses on an implementation named OLSRS (OLSR scheduling implementation). OLSRS provides a concrete scheme and several key techniques on the implementation of OLSR protocol. This paper first considers the general framework of OLSRS according to the routing architecture of Linux OS. Besides overall framework, this paper discusses the difficulties encountered in OLSRS and provides proper...
With the fast development of mobile ad hoc networks (MANETs), fault diagnosis has become a critical need to guarantee robust service for various applications. Many techniques have been suggested to solve this problem, but they still cannot satisfy the special need of MANETs. In this paper, we propose a new fault diagnosis system using hybrid GA-BP neural network. The results of simulation demonstrate...
With the enlargement of the network size and application scope of mobile ad hoc networks, the variety and number of service needed by such networks become more and more. Furthermore, in this dynamic environment, different nodes offering different services may enter and leave the network at any time. Efficient and timely service discovery becomes a new task of mobile ad hoc network. Discovery of services...
In this paper we propose a new power-aware routing protocols TBPR (Time-based Broadcasting for Power-aware Routing) for wireless ad hoc network. Unlike conventional power-aware protocols, our protocol not only considers accumulated power consumption as a routing metric, but also utilizes a mechanism of controlling rebroadcasting route request packets to optimize the power conserving performance. Simulation...
Many routing algorithms, proposed for ad hoc wireless networks, are based on source routing scheme. In routing protocols that use flooding, many routing messages are propagated unnecessarily. Gossiping can be used to significantly reduce the number of routing messages sent. When a route is broken, route recovery and maintenance are executed. However, these procedures consume many resources. With a...
Ad hoc wireless networks enable new and exciting applications, but also pose significant technical challenges. In this paper, practicability architecture for hierarchical mobile ad hoc network is proposed, this architecture integrates mobile ad hoc network with other network. We consider the mobility management in this architecture, we propose a mobility management scheme that is the comprise of inter-subnet...
A novel load-balanced based medium access control scheme for ad hoc networks with multiple channels available is presented in this paper, which dynamically assign channels to mobile hosts based on an on-demand method, and exploits the status information of neighbor nodes piggyback on channel-reservation messages to update the channel status recorded in nodes. The protocol aims at efficient data transmission...
Due to energy limitation, mobile ad hoc network faces to the challenge of lifetime, wireless resource utilized efficiency and delay. Power control in mobile ad hoc networks has been the focus of extensive research. Its main objectives are to reduce the total energy consumed in packet delivery and/or increase network throughput by increasing the channel's spatial reuse. In this paper, we proposed a...
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