What is coverage in WSN?
Abstract. The coverage problem in wireless sensor networks (WSNs) is to determine the number of active sensor nodes needed to cover the sensing area. The purpose is to extend the lifetime of the WSN by turning off redundant nodes.
Which WSN coverage algorithm proposed?
The wireless sensor network node optimal coverage based on improved genetic algorithm and binary ant colony algorithm is proposed and applied to node optimal coverage.
What is coverage and connectivity in WSN?
Thus, sensing as well as connectivity are the important features in a WSN. Coverage of a sensor network represents how well the sensors monitor a field of interest (FoI) where they are deployed. It is the performance measure of the network sensing capability. Connectivity represents how well the nodes can communicate.
Which network is used by sensors?
Wireless Sensor Network (WSN) is an infrastructure-less wireless network that is deployed in a large number of wireless sensors in an ad-hoc manner that is used to monitor the system, physical or environmental conditions.
What is deployment in WSN?
The main function of WSN is to process extracted data and to transmit it to remote locations. A large number of sensor nodes are deployed in the monitoring area. Therefore, deploying the minimum number of nodes that maintain full coverage and connectivity is of immense importance for research.
How do wireless sensors work?
A Wireless sensor network can be defined as a network of devices that can communicate the information gathered from a monitored field through wireless links. The data is forwarded through multiple nodes, and with a gateway, the data is connected to other networks like wireless Ethernet.
What is a base station in WSN?
The base station is at the upper level of the hierarchical WSN. It provides the communication link between the sensor network and the end-user. It contains the antennas and other equipment needed to allow wireless communications devices to connect with the network.
What are the deployment objectives of a wireless sensor network?
They have distinguished four primary objectives for sensor deploy- ment, such as: area coverage, network connectivity, net- work longevity and data fidelity.
What are the features of wireless sensor networks?
Characteristics of Wireless Sensor Network
- The consumption of Power limits for nodes with batteries.
- Capacity to handle node failures.
- Some mobility of nodes and Heterogeneity of nodes.
- Scalability to a large scale of distribution.
- Capability to ensure strict environmental conditions.
- Simple to use.
- Cross-layer design.