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Sinkhole malicious nodes attacks are quite hard to handle in wireless sensor networks, due to the reason that the results of the attacks may cut off the communications by spreading false hops, absorbing data packets. Those terrible attacks are formed from the unique destroying method, which will preferentially destroy the nodes with higher communication function and shorter distance from the Sink...
Topologies with strong invulnerability and high reliability has become an important issue in the development of Wireless Sensor Networks (WSNs). In this paper, WSNs is modeled as a weighted network which the load of nodes is considered as the weight of nodes. Thus, the problem of balancing the load turns into the problem of balancing the weight of the network. A load-aware and energy-aware local world...
According to ISA100.11a standard, a new gateway access method based on application layer was proposed in this paper which realized the communication between wireless sensor networks and Ethernet. It was C/S structure and completed on the Linux operating development platform. The system mainly contained four modules: Ethernet interface module, data storage module, protocol conversion module and wireless...
In this paper, we study the sensor selection problem for parameter estimation in wireless sensor networks (WSNs) to minimize the energy consumption with guaranteed quality of estimation. We adopt the Best Linear Unbiased Estimator (BLUE) as the fusion algorithm, and the Mean Squared Error (MSE) criterion to measure the quality of estimation. We formulate the problem as a constrained optimization problem,...
Wireless sensor networks are highly useful for many location-sensitive applications. The position of each node is assumed in most wireless sensor networks, which can make the sensed information meaningful. Finding position without GPS is important when GPS is not accessible or not practical to use. Typically, with the positions of only a few sensors predetermined, localization algorithms work for...
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