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LEACH (Low Energy Adaptive Clustering Hierarchy) is a clustering-based protocol that utilizes randomized rotation of the cluster-heads to evenly distribute the energy load among the sensor nodes in the network. This classical protocol has been widely used in wireless sensor network (WSN). However, it has the disadvantage of irrationality of electing(More)
Wireless sensor networks (WSNs) currently operate in the unlicensed industrial, scientific and medical (ISM) spectrum band. However, more and more wireless equipments make this band overcrowded. The tremendous growth in the applications of WSNs has posed great challenges for the precious radio electromagnetic spectrum resource. The limited wireless spectrum(More)
Monitoring grain storage situation is playing a very important role in grain storage safety. Traditional monitor system for grain depots has several drawbacks, such as large cable coverage, more interference and lighting strike, high maintenance cost and so on. To deal with these issues, a novel scheme of the monitor system for grain depots is proposed(More)
This paper presents a kind of survivability evaluation technique for Tactical Data Link Network (TDLN). In our work, a distributed evaluation system via High Level Architecture (HLA) is provided to evaluate the TDLN on-line, and a novel quantitative evaluation method based on the principle of maximum deviation and subjective estimation is proposed to(More)
The network routing could be simplified by clustering algorithm in wireless sensor network (WSN). Aimed at the occasion with a large amount of nodes but without wholenetwork time synchronization mechanism, a self-adaptive clustering algorithm for network topology control is proposed. In this algorithm, the cluster structure can be adjusted automatically(More)
Wireless sensor network consists of sensor nodes which are powered by battery; to communicate with each other for environment monitoring. Energy efficiency is the main issue in wireless sensor networks. Therefore, to maximize network lifetime and achieve maximum reliability and scalability, routing techniques have been developed. LEACH is the conventional(More)
With the rapid development of multimedia technology and computer network technology, and the popularization of the Internet, digital media has gradually become the primary means of information exchange, such as images, audio, video. People can easily get a variety of digital information from the Internet. Because digital information can easily be illegally(More)
Collaborative simulation is proposed as a technique to support design evaluation with higher fidelity by addressing the interacting phenomena during the development of complex system. To facilitate the collaborative simulation, the High Level Architecture (HLA) was proposed and evolved as a standard with its interface specification, object model template(More)
A generic formal framework for protocol interoperability test is proposed, which consider the common situation of protocol interoperability test by introducing the multi-stimuli principle in the multi-port FSM. A novel interoperability test sequences minimization scheme based on genetic algorithm (GA) is proposed to avoid the state space explosion problem,(More)