What is scalability in wireless sensor network?

Scalability is defined as ability to handle growing number of users in a network . A routing protocol is considered scalable with respect to network size. In a wireless sensor network the routing protocol which is very efficient in performance is the hierarchi- cal routing Protocol.

What is localization in wireless sensor networks?

Localization is extensively used in Wireless Sensor Networks (WSNs) to identify the current location of the sensor nodes. A WSN consist of thousands of nodes that make the installation of GPS on each sensor node expensive and moreover GPS will not provide exact localization results in an indoor environment.

What are the components of wireless sensor networks?

Structure of a wireless sensor node. A sensor node is made up of four basic components such as sensing unit, processing unit, transceiver unit and a power unit which is shown in Fig. 5. It also has application dependent additional components such as a location finding system, a power generator and a mobilizer.

Which architecture is used in wireless sensor networks?

There are 2 types of architecture used in WSN: Layered Network Architecture, and Clustered Architecture.

What are the different localization techniques?

Range-Based Localization. Range-based schemes are distance-estimation- and angle-estimation-based techniques. Important techniques used in range-based localization are received signal strength indication (RSSI), angle of arrival (AOA), time difference of arrival (TDOA), and time of arrival (TOA) [28–34].

What sensors could be used for localization?

Robust and accurate localization schemes combine data received from IMUs, wheel encoders, GPS, laser, radar, ultrasonic and vision software algorithms to implement SLAM techniques. Depending on the application and specification of navigation and object avoidance, the fusion can be limited to few sensors or all sensors.

What is scalability in wireless sensor network? Scalability is defined as ability to handle growing number of users in a network . A routing protocol is considered scalable with respect to network size. In a wireless sensor network the routing protocol which is very efficient in performance is the hierarchi- cal routing Protocol. What is…