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Wireless sensor networks collecting data to monitor real life processes gain increasing attention from the scientific community. These systems promise ubiquitous computing in a digitalized world. However many problems need to be solved to achieve this dream. One of these problems is the limited battery power of the nodes and the limited bandwidth of the communication. Existing work tackle the problem...
The plug-in of nodes in already synchronized Wireless Sensor Network (WSN) can perturb the synchronization accuracy. In the case of the plug-in of one node, the consensus based synchronization algorithm permits to deploy the local interactions among nodes, and, as a consequence, to detect and ignore the Non Synchronized Node (NSN). In the case of multiple nodes, the detection of NSNs can be misstated...
For single sink multi-hop wireless sensor networks, the nodes close to the sink node forward the total network traffic to the sink. Hence, they exhaust their energy faster and energy-holes are formed near the sink node that reduces the lifetime of the network. To enhance the network lifetime and to reduce the packet delay, multiple sink node deployment strategies are proposed for better load balancing,...
With the deepening of wireless sensor network (WSN) applied in various services in smart substation, high data rate and quality of service has become the new research focus. For smart substation equipment condition monitoring, the paper designs clustered smart substation equipment monitoring network based on wireless sensor network. Reference to Zigbee protocol and IEC 61850 relevant regulations,...
One application considered for IEEE 802.15.4 standard Low Rate-Wireless Personal Area Network (LR-WPAN) is wireless sensor network and control application that is centered on the performance of IEEE 802.15.4 standard for star and cluster topology. This study conduct performance comparison of beacon-enabled mode on star and cluster topology IEEE 802.15.4 standard by analyzing the result of throughput,...
Cognitive radios allow secondary users to use the underutilized spectrum. However, in the presence of a primary user, the unlicensed users must vacate the spectrum, leading to a decrease in network performance or even network partition. In this paper we address the problem of robust topology control in wireless sensor networks with the objective of assigning a sensor channel on each radio such that...
In this paper, a MR-MC (Multi-Radio and Multi-Channel) network architecture based on nested cellular topology structure has been proposed on account of the characteristics of sensor network and manufacturing environment. Sensor nodes adopt single radio to communicate within subnet formed by the router chosen according to the strength of wireless signal received from it. The neighboring subnets use...
Topology control technology has important effect on the performance of wireless sensor network. Based on local minimum spanning tree algorithm, this paper proposes topology control algorithm based on energy equilibrium. The algorithm synthetically consider the communication energy consumption between nodes and the node's residual energy, which can not only make the local total energy consumption close...
Wireless Sensor Network consists of large number of sensor nodes with limited battery power, which are randomly deployed over certain area for several applications. Wireless Sensor Network (WSN) has a great potential to be deployed in wide range of applications like consumer, industrial and defense sectors. WSN s are susceptible to various attacks, in which Blackhole a kind of Denial of Service (DoS)...
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