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The drift phenomenon of received signal strength may occur due to the influence of environmental change, which will affect the results of wireless local area network indoor positioning. This paper proposes an indoor location method based on quadratic ...

In this paper, a three-dimensional (3D) indoor visible light localization method based on machine learning and deep learning is presented, which is able to obtain accurate 3D spatial coordinates of the user, including the location on the plane and the ...

Aiming at the characteristics of large passenger flow and the complex and variable indoor environment in the airport terminal, an indoor localization algorithm based on Received Signal Strength feature extension and Spectral Regression Kernel ...

Next generation networks are heterogeneous in nature due to presence of various radio access technologies (RATs). Hence seamless mobility of users can be achieved by vertical handover (VHO). The main aim of this research paper is to design and implement ...

One popular indoor localisation method in wireless sensor networks (WSN) and wireless local area networks (WLAN) is fingerprinting technique. However, the training stage of fingerprinting and constructing the radio map is time-consuming and labour-...

Next generation wireless networks are heterogeneous in nature consisting of various radio access technologies (RATs). Hence vertical handover (VHO) becomes a necessity in order to achieve seamless mobility of the mobile users. This research paper presents ...

Radio frequency (RF) solutions for human vital sign monitoring have gained importance due to their low device cost and non-contact sensing. However, most systems are quite heavy users of RF spectrum, e.g., transmitting hundreds of WiFi packets per ...

In this work, we focus on localization of a beacon which is a source of radio frequency (RF) signal using a single unmanned aerial vehicle (UAV). We propose to use the Support Vector Regression (SVR) technique to directly localize the sensor by using the ...

Nowadays, mobile communications have heterogeneous wireless networks offering variable coverage and quality of service (QoS). The availability of alternatives generates a problem of occurrence of unnecessary handoff that results in wastage of network ...

Using the hybrid received signal strength (RSS) and angle of arrival (AOA) measurements, a position estimation model is proposed for sensor localisation in three-dimensional plane. Then the unconstraint linear least square (ULLS) and constraint linear ...

With exponential increase in digital data transfer and growing consumer base, there is a need to efficiently handle large set of users. In addition to that, we face a lot of problems due to poor signal connectivity during travel. Though operators ...

Received signal strength (RSS) in wireless networks is widely adopted for indoor positioning purpose because of its low cost and open access properties. However due to the sophisticated propagation of radio signals, the RSS shows a significant variation ...

This study considers the problem of indoor localisation in which the authors try to generate the radio map of the environment based on both labelled and unlabelled measurements (i.e. measurements with and without information about the location that they ...

The authors propose an adaptive cell‐breathing (ACB) technique to improve the energy efficiency (EE) of a downlink cellular network consisting of small‐cell base stations (BSs), wherein each BS adaptively adjusts its transmission power such that the ...

We present results from a system which uses received signal strength (RSS) measurements to estimate the speed at which a person is walking when they cross the link line. While many RSS-based device-free localization systems can detect a line crossing, ...

An enormous amount of research has been conducted in the area of positioning systems and thus it calls for a detailed literature review of recent localization systems. This article focuses on recent developments of non-Global Positioning System (GPS) ...

Objective of this work is to analyse various mote parameters, under different deployment and antenna positioning scenarios. The nodes were deployed and tested for its communication and sensing on the surface, under the ground and also in a hybrid ...

Received signal strength RSS in wireless networks is widely adopted for indoor positioning purpose because of its low cost and open access properties. However, the popular RSSs are observed to differ significantly from discrete devices' hardware even ...

In received signal strength (RSS)‐based indoor wireless localisation system, radio pathloss model or radio map must be readily obtainable. However, the unpredictability of wireless channel makes it difficult to achieve high accuracy localisation in ...

This paper presents a new collaborative location estimation method for wireless sensor networks WSN, referred to as an iterative tree search algorithm I-TSA. The proposed method is based on the grid search least square estimator LSE, which provides ...