Terrestrial Localization by Using Angle of Arrival Measurements in Wireless Sensor Network

2020 ◽

pp. 125-144

Author(s):

Ankur Shrivastava ◽

Nitin Gupta ◽

Shreya Srivastav

Keyword(s):

Wireless Sensor Network ◽

Sensor Network ◽

Signal Propagation ◽

Multipath Fading ◽

Wireless Sensor ◽

Coordinate Frame ◽

Angle Of Arrival ◽

Node Localization ◽

Secure Localization ◽

Anchor Nodes

In wireless sensor network, node localization is helpful in reporting the event's origin, assisting querying of sensors, routing, and various cyber-physical system applications, where sensors are required to report geographically meaningful data for location-based applications. One of the accurate ways of localization is the use of anchor nodes which are generally equipped with global positioning system. However, in range-based approaches used in literature, like Angle of Arrival, the accuracy and precision decreases in case of multipath fading environment. Therefore, this chapter proposes an angle of signal propagation-based method where each node emits only two signals in a particular direction and knows its approximate position while receiving the second signal. Further, a method is proposed to define the coordinates of the nodes in reference to a local coordinate frame. The proposed method does the work with a smaller number of transmissions in the network even in the presence of malicious adversaries.

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A Radio Signal Strength Based Localization Error Optimization Technique for Wireless Sensor Network

Indonesian Journal of Electrical Engineering and Computer Science ◽

10.11591/ijeecs.v11.i3.pp839-847 ◽

2018 ◽

Vol 11 (3) ◽

pp. 839

Author(s):

Sudha H. Thimmaiah ◽

Mahadevan G

Keyword(s):

Wireless Sensor Network ◽

Sensor Network ◽

Optimization Technique ◽

Signal Strength ◽

Cost Effective ◽

Wireless Sensor ◽

Time Of Arrival ◽

Localization Error ◽

Angle Of Arrival ◽

Strength Based

Wireless Sensor Networks (WSN) is useful in collecting data from various sensor devices that are distributed over a network which is generally positioned in a stationary manner. Wireless sensor based communication system is an ever growing sector in the industry of communication. Wireless infrastructure is a network that enables correspondence between various devices associated through an infrastructure protocol. Finding the position or location of sensor node (Localization) is an important factor in sensor network for proving efficient service to end user. The existing technique proposed so for adopt AOA (Angle of Arrival), TOA (Time of Arrival) etc… suffers in estimating the likelihood of localization error and induces high cost of deployment. To cater this in this work the author proposes a cost effective RSS (Received signal strength) based localization technique and also proposes an adaptive information estimation to reduce or approximate the localization error in wireless sensor network. The author compares our proposed localization model with existing protocol and analyse its efficiency.

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