Sensor Position Estimation Method for IoT Using Mobile Reference Node

Convex Optimization Methods for Sensor Node Position Estimation

Problem statement: Location knowledge in indoor environment using Indoor Positioning Systems (IPS) has become very useful and popular in recent years. A number of Location Based Services (LBS) have been developed, which are based on IPS, these LBS include asset tracking, inventory management and security based applications. Many next-generation LBS applications such as social networking, local ...

Improved Robust Node Position Estimation in Wireless Sensor Networks

A new method for estimating the relative positions of location-unaware nodes from the location-aware nodes and the received signal strength (RSS) between the nodes, in a wireless sensor network (WSN), is proposed. In the method, a regularization term is incorporated in the optimization problem leading to significant improvement in the estimation accuracy even in the presence of position errors ...

Mobile Surveillance Using Wireless Sensor Node for Acoustic Applications

This paper proposes a model for surveillance where the voice from the wireless sensor network (WSN) node can be streamed to the Smartphone of the user. To take into account the limited bandwidth availability of 250 kbps, the emphasis is given in compression and decompression algorithm. The G.723.1 decompression algorithm is implemented in the Smartphone itself. It describes the optimum techniqu...

Position Estimation for Goods Tracking System Using Mobile Detectors

Position Estimation for a Mobile Robot using Data Fusion

This paper describes a position estimation tecnique based on the fusion of data obtained by two independent subsystems in a mobile robot navigation context. The rst subsystem is a self-location one composed of an onboard camera, an onboard image processing unit and artiicial landmarks; the second one is a dead-reckoning subsystem based on odometry. The robot navigation system integrates the pos...