The wide spread of the 802.11-based wireless technology brings about a good opportunity for the indoor positioning system. In this paper, we present a new 802.11-based indoor positioning method using support vector regression (SVR), which consists of offline training stage and online location stage.Themodel that describes the relations between the position and the received signal strength (RSS)...

Network positioning systems are essential to good performance in distributed systems that scale to millions of end hosts. Evaluating performance in this environment is particularly challenging. This paper addresses this issue through an empirical study of two alternative classes of network positioning services based on a dataset gathered from more than 43K IP addresses probing over 8M other IPs...

Internet of Things (IoT) for Smart Environments (SE) is a new scenario that collects useful information and provides convenient services to humans via sensing and wireless communications. Infra-Red (IR) motion sensors have recently been widely used for indoor lighting because they allow the system to detect whether a human is inside or outside the sensors’ range. In this paper, the performance ...

The emerging context-aware applications relying on the wireless networking, require the availability of network services that provide even simple notions of context as position and identity. In the last few years several localization and tracking systems for indoor environment have been proposed. However, these systems are often very expensive since they require the installation of dedicated in...

This paper present our mobile u-navigation system. This approach utilizes hybridization of wireless local area network and Global Positioning System internal sensor which to receive signal strength from access point and the same time retrieve Global Navigation System Satellite signal. This positioning information will be switched based on type of environment in order to ensure the ubiquity of p...

introduction : the dynamic interaction between mother and infant is one of the indicative factors of infants’ social and emotional development especially in stressful situations as cognitive evaluating. methods: an experimental study was completed in 2010 in tehran on a total of 40 infants (18 boys and 22girls) forming two alternative groups and varying in age of infancy (4, 6, 8, 10 and 12 mon...

We analyze the performance of a novel human tracking system, which uses the electric near field to sense human presence. The positioning accuracy with moving targets is measured using raw observations, observation centroids and Kalman filtered centroids. In addition to this, the multi-target discrimination performance is studied with two people and a Rao-Blackwellized Monte Carlo data associati...

Introduction: The accuracy of patient positioning plays an important role for radiotherapy tasks. Short and automated Quality Assurance (QA) programs are becoming one of the challenging tasks in Radiotherapy. The current study, investigates the accuracy of treatment couch positioning with four degrees of freedom (4DoF) using a fast and accurate method based on an image acquired...

WiFi positioning plays an increasingly important role in improving performance because good positioning can improve performance in indoor environments without additional devices. It will make use of existing WiFi infrastructure, although this was never designed to do so. Methods that were used for other positioning technologies can be adopted for WiFi. Whether or not these other methods work wi...