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.
Wireless sensors networks (WSNs) are susceptible because of its characters. The traditional security mechanisms can not be use to protect the WSNs. In the paper, a trusted transport mode based on cluster-merkle-tree for WSNs (TTMCMT) is proposed, which can provide a method of trusted transport with WSNs of great restriction. The object of scheme is to realize secure authentication and secure message...
The “Internet of Things” infrastructure will be strongly integrated with the environment, and its integration with the enterprise systems will not only further blur the line between business IT systems and the real world. To contribute to the secure development of IOT, the research mainly focuses on the key trust control technologies in IOT, including heterogeneous network model, trust routing, and...
Blue-green algae, widely distributed almost all over the world, is one kind of the most ancient and primitive algae plants. The toxin and smell that blue-green algae releases out endanger human life and health directly, it is of great significance to study the mechanism of algae outbreak. The paper presents a method for the algae simulation based on wireless sensor networks and particle systems theory...
Flow modeling of wireless sensor network (WSN) is a new field of network flow analysis, and most of research on flow modeling of WSN is based on the Poisson theory currently. However, WSN shows self-similarity as a part of information networks. In this paper we analyze and verify the flow inter-arrival time (IAT)'s self-similarity in the periodic mode of WSN. Then a cumulative TAR (1) model is proposed...
In this paper we build a single-chip ZigBee hardware platform using Freescale MC13213, describe the basic content of physical layer protocol. By analyzing the programming structure of SPI services protocols and the Modem working mode in physical layer, we realize the designing of the underlying hardware drivers and the transmitting / receiving programs for the physical layer data packet with the component...
In wireless sensor network, there are many hurdles takes place in providing quality of service routing to a desired level. The majority of routing protocols in wireless sensor networks concentrates on energy efficiency as a prime factor. Developing an energy-efficient routing protocol has a significant impact on the overall lifetime and stability of the sensor network. In this paper, we have considered...
A novel model about the local-world linear expanding evolution of wireless sensor networks(WSNs) has been put forward in the basis of the classic BA scale-free model. The four types of internal evolving behaviors in wireless sensor networks are reflected in the dynamic process of the model. With the application of continuous field theory, the characteristics of network nodes' degree distribution are...
With the purpose of solving the continuous supply of energy of wireless sensor network in the water environment, wave power is utilized for wireless sensor nodes. Based on mechanical movement principle and electromagnetic induction. This paper has designed two mini generator, namely gear device and pulley device. The electrical energy which mini generator generates puts aside the battery via AC-DC...
A wireless sensor network consists of a huge number of sensor nodes with limited battery power, which are deployed over a certain geographical area for monitoring the activities of the targets and reporting the information to the sink node. Now that the energy supplying is limited and cannot be replaced freely, the network must minimize the energy consumption in order to prolong the span of the network...
Connectivity is a basic problem in the study of a wireless sensor network. Since there exists a larger scale on the deployment of the wireless sensor network nodes, and the node location and the connection between nodes have a certain amount of randomness, the connectivity behavior of wireless sensor networks is described as a percolation phenomenon in this paper. According to percolation theory and...
First, this paper expounded the reasons for the failure of construction equipment, and determined the main online monitoring parameters and analysis methods. Then, some construction equipment would be selected to set up a wireless sensor network. In the network, numbers of nodes are deployed for the temperature, pressure, vibration, noise, speed and other parameters monitoring to timely and continuously...
Wireless Sensor Networks, WSN for short, envisions ubiquitous computing future in many fields, such as environmental monitoring, traffic management, disaster forecasting, military surveillance and inventory tracking. In this paper, we put forward the software and hardware design methods of WSN which based on Bluetooth and embedded system. We adopt the Bluetooth as the means of wireless communication,...
Mobile video surveillance system based on ARM9 uses unique high-bandwidth business applications of 3G wireless network. The design of hardware and software of embedded monitoring system is described. The running platform of 3G network show that the system can work well in the circumstances of the limited bandwidth.
With the development of social economic, China will become the country which has the longest Metro line among Countries in the world soon. It is necessary to research Metro rescue system using wireless sensor network (WSN) because of the special geographic structure, such as a larger flow of people, higher automatic service systems for Metro environment. This paper proposes to establish Metro environment...
According to the existing problems in current key management strategy of wireless sensor network, which have computation complexity, multi-memory space and inflexible management, this paper proposed a mixed key management scheme of clustering wireless sensor network. Implementing the LU matrix decomposition in the cluster heads communication and Chinese remainder theorem in sensors communication,...
This article bases on the view of complex adaptive systems theory to give the methodological analysis to the wireless sensor network (WSN)'s Self-configuration, Self-healing and Agent characteristics. Wireless Sensor Network is a complex system. Based on scientific management research methodology, it must use the complex system theory to deal with complex systems. CAS gives high potential line of...
An adaptive handover algorithm for wireless communication systems is addressed in this paper. Moving from the Generalized Extended Least Square handover algorithm proposed in, we model the handover mechanism as a hybrid system, and we include it in a dynamic optimization problem which is solved through the use of a trellis diagram. It's the key segment in moving Least-Square Approximation that computing...
This paper presents a robust distributed localization approach which employs weighted least squares scaling with soft constrains. It incorporates the a priori deployment constraints, i.e., minimum and maximum node separation among 2-hop nodes, into localization as soft constraints and penalizes pairs of 2-hop nodes whose assigned coordinates violate the minimum and maximum constraints. Combined with...
In Wireless Sensor Networks, recent studies reveal using mobile sink as a solution for collecting the data has been shown to be an effective way of improving sensor network performances. In this paper, Firstly, we analyze the data collection algorithms based on hierarchical or cluster and the Mobile Element Scheduling(MES) algorithms. Subsequently, a new energy and delay aware hybrid data collection...
Clustering is an energy efficient method for wireless sensor network monitoring. Existed algorithms are mostly location-based, where physical temporal-spatial correlations are considered, leading to a poor data compression rate. This paper proposes a novel data correlation based clustering approach. A greedy algorithm, minimum degree first clustering algorithm, is introduced to cluster the sensor...
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.