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With the requirement of real-time and reliability on monitoring power transmission lines, this paper proposes a cooperative communication protocol with network coding in long-chain wireless sensor networks (WSN). The protocol makes full use of channel broadcast characteristics and cooperative communication. It applies the classical butterfly structure of network coding among the successive three hops...
For single-owner multi-user wireless sensor networks, there is the demand to implement the user privacy-preserving access control protocol in WSNs. Firstly, we propose a new access control protocol based on an efficient attribute-based signature. In the protocol, users need to pay for query, and the protocol achieves fine-grained access control and privacy protection. Then, the protocol is analyzed...
The implement of peak and valley time sharing electricity price is the important measure to regulate power load fluctuation and promote load rate. We build a domestic communication network of WIA in customer's home, in order to make air conditioners and the other appliances connect with each other. In order to get reasonable solution of power utilization, we establish a nonlinear mathematical model,...
Sleep Scheduling is one of the most important challenges for energy conservation in Wireless Sensor Networks (WSNs). Connected Dominating Set (CDS) based virtual backbone is often employed in WSNs. Compared with the ordinary CDS, the R-hop Connected Dominating Set (R-CDS) with smaller size is more suitable for build a virtual backbone for energy conservation. In this paper, a R-hop connected dominating...
The Wireless Sensor Converge-cast Networks (WSCNs) are widely applied in many fields such as medical applications and environmental monitoring. The monitoring data are collected from the sensors and gathering toward the sink node. A coding aware routing scheme based on Connected Dominating Set is provided. Based on CDS, a coding condition, named Improved Coding Conditions (ICC), is defined with an...
Debugging and protocol conformance testing of power meter reading system which is based on wireless sensor network is complex, aiming at this problem, we develop a powerful, flexible use, convenient carrying multichannel real-time data monitoring and transmitting device in this paper. The hardware realization and working principle of multichannel synchronous data transceiver are introduced in detail...
The research aimed to use Wireless Sensor Networks(WSNs) applying in the mine tunnel environmental monitoring. The wireless sensor node has a camera which can transmit live image signal in order to monitor the status in the mine tunnel when an exception occurs that the wireless sensor nodes perceived such as humidity increases, gas concentration increases, etc. The quality of image signal depends...
A Connected Dominating Set (CDS) working as a virtual backbone is an effective way to optimize the network's topology, constructing a CDS for WSNs is a largely growing field, and a smaller CDS incurs less maintenance overhead. Research on finding smaller CDS is quite active. In this paper, a novel algorithm based on the Induced Tree of Crossed Cube is presented. It generates a CDS with a lower approximation...
In this paper, we propose a novel multi-tier clustering strategy using cultural-based multiobjective particle swarm optimization (Cultural-MOPSO) for maximizing the longevity of wireless sensor networks. We take into account the distribution of surviving nodes and define three objective functions based on multi-tier cluster hierarchy to fully evaluate every clusterhead election. Simulation results...
In wireless sensor networks, MAC protocols are important for sensor nodes to access a shared radio channel to communicate with neighbors. A transmission energy control protocol is proposed to efficiently utilize the battery energy through a single channel by collision avoidance manner. The protocol can save transmission energy of most messages by setting an upper limit on the nodes' transmission energy...
Energy-efficient is a key problem of Under-water acoustic sensor network (UASN). Base on analysis of energy consumption for LEACH in underwater channel, we propose a novel scheme for cluster-head selection to ensure nodes energy load balance by considering residual energy of candidate nodes and the distance to SINK, which can lower the probability of selecting nodes with low energy and poor location...
Describe the wireless biosensor system for electrocardiogram (ECG), such as the way to increase the transmission distance and overcast area of signals in the complicated structure space; improve identification speed in multi-user wireless biosensor system; the wireless relay transport protocols; decreasing the power and volume of the biosensor. The basic method is adopting the wireless relay station...
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