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Data processing technology is a key technology in ZIGBEE wireless sensor network system. Based on the current fact that ZIGBEE wireless sensor network is suffering from data excess and information shortage, this paper introduces the complex event processing technology, takes the angle from the nature of information and event processing, and researches on the data analysis method of ZIGBEE wireless...
Wireless sensor networks based on the description of P2P network functions, the bottom of the screen, and using the network characteristics of P2P networks realized dynamic changes of sensor network support and multiple sensor network information sharing. This sensor network as the support of data, using high application of P2P technology gives P2P wireless sensor network layer of design and implementation.
Hello protocol is widely used in geographic routing protocols to obtain and maintain neighbor table. However in highly dynamic networks, the information stored in the neighbor table is often outdated causing retransmissions and rerouting. A novel Two-hop Hello protocol (T-Hello) is proposed aiming to improve the accuracy of neighbor table. By exchanging beacon messages within two-hop scope, location...
Recent advances in Wireless Sensor Networks (WSNs) make them more important to apply. Therefore, security issues are more significant in WSNs. WSNs are susceptible to some types of attacks since they are consisted of cheap and small devices and are deployed in open and unprotected environments. In this research, an Intrusion Detection System (IDS) created in cluster head is proposed. The proposed...
An energy-aware data gathering protocol called EADGP that maximizes the network lifetime for wireless sensor networks is proposed in this paper. EADGP introduces a novel distributed hierarchical clustering method. In order to reduce energy consumption and realize load balance, a new cost metric and a metric-mapping function is presented during the cluster head selection phase. Unlike traditional energy-based...
Fault diagnosis for wireless sensor is very important to ensure signal acquisition precision. Radial basis function (RBF) neural network has strong classification ability. However, the selection of the connection weights, the hidden centers and the widths has an important influence on the classification performance of the RBF neural network in the learning process of RBF neural network. Thus, ant...
In wireless sensor networks with holes(obstacles), to identify holes and deliver data packets efficiently are challenging issues. Most existing researches require sensor nodes to exchange messages multiple times for hole identification and thus depleting energy of sensors. In some researches, even with the assumption of knowing the information of the hole, due to the lack of efficient hole bypassing...
In the paper, we propose a new d-hop Clustering method for a clustering-based multi-hop routing scheme in large-scale wireless sensor network. d-hop clustering means that each cluster contains all nodes that are at distance at most d-hops from the clusterhead, so that the number of clusters can be getting smaller to make it possible to guarantee the combined system performances including end-to-end...
Time synchronization is extremely important for wireless sensor networks. Since the sensors have very limited energy resources and it is very difficult to change batteries for the sensor nodes, energy efficiency is one of primary importance for a sensor network. To prolong the lifetime of a sensor network, we proposed a cluster based on demand time synchronization in wireless sensor networks(COD)...
Potential barrier parameter induced bistable stochastic resonance (BSR) was studied in this paper. Based on the former stochastic resonance study, potential well parameter b was investigated to explore the parameter-induced stochastic resonance characteristics. A bluetooth stack-based wireless sensor network (WSN) was adopted to obtain the experimental data for parameter-induced stochastic resonance...
Routing protocol as one key technologies of wireless sensor networks has been a hot research. Because the applications of wireless sensor networks everywhere, it is impossible that there is a routing protocol suitable for all applications. In this paper, the applications are divided into five categories and illustrated respectively. Then the common routing protocols that DD, LEACH, SPEED, GEAR and...
In multi-cluster sensor network, the inter-cluster interference is a factor to bring packet loss and energy cost. In this paper, a slot pre-allocation algorism to deal with the inter-cluster interference in TDMA based sensor network is proposed. The algorism is totally based on TDMA MAC, without using frequency enlarged methods such as CDMA and FDMA, can be easily implemented and not demands additional...
A ZigBee based personal dynamic positioning method via particle filter is discussed in this paper. The Received Signal Strength (RSS) is adopted to estimate the location of the target by applying the trilateration algorithm. The simplified path loss model is chosen to represent the signal propagation. The weights of particles are determined by the distance between the predicted position and the calculated...
Many wireless sensor network applications require information about the geographic location of each sensor node. So, localization is an important challenge in wireless sensor networks. In this paper, we propose a new algorithm with the objective of achieving better localization accuracy. Our algorithm have two phase, DV-distance is used to complete the ranging phase and Imperialist Competitive Algorithm...
Since there is no infrastructure in wireless sensor networks, the CDS (Connected Dominating Set) has been widely used as a virtual backbone. It is desirable that the virtual backbone is fault tolerate because node and link failure are inherent in wireless sensor networks. In this paper, we propose an algorithm which constructs a MESH-CDS in a localized manner in order to resist the failure of one...
6LoWPAN enables IPv6 to be applied to wireless sensor network and enable end to end communication. One of the 6lopwan features is the capability of dynamic assignment of 16 bit short addresses. Using this feature a hierarchical routing protocol was designed. The designed hierarchical routing protocol focuses on the address allocation method and routing mechanism. However the routing protocol doesn't...
In recent years, greenhouse technology in agriculture is to automation, information technology direction with the IOT (internet of things) technology rapid development and wide application. In the paper, control networks and information networks integration of IOT technology has been studied based on the actual situation of agricultural production. Remote monitoring system with internet and wireless...
A intelligent monitor and control system on multi-factor of aquaculture environment based on wireless sensor networks is designed adopting BP neural networks. The system uses wireless sensor nodes to detect a variety of water quality parameters transmitted to the on-site monitoring host computer through sink node wirelessly. The control module consists of fuzzy controller and decoupling neural network...
One of the most important problems in wireless sensor networks is Energy-efficiency Routing Protocol Design. In This Work We propose a hierarchical Clustering Method For energy conservation in Wireless Sensor Networks. first, we divide the sensor nodes to Small Size clusters and determine a cluster head for each cluster in the network. The residual energy and distance to BS are parameters for CH election...
In order to realize Remote Monitoring of wheelchair's user and Home environment, ZigBee-based network intelligent wheelchair system has been designed by using Wireless Sensor Networks, intelligent wheelchair, and communication modules. The system works on the existing TD-SCDMA network. This paper introduces the working principle, hardware and software designing. The design of sensor nodes, network...
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