Results 41 to 50 of about 42,493 (254)

Efficient AoA-based wireless indoor localization for hospital outpatients using mobile devices [PDF]

open access: yes, 2018
The motivation of this work is to help outpatients find their corresponding departments or clinics, thus, it needs to provide indoor positioning services with a room-level accuracy.
Abbasi, Qammer H.   +2 more
core   +1 more source

A Novel Localization Algorithm Based on RSSI and Multilateration for Indoor Environments

open access: yesElectronics, 2022
Indoor localization algorithms based on the received signal strength indicator (RSSI) in wireless sensor networks (WSNs) have higher localization accuracy than other range-free methods.
Jinze Du, C. Yuan, Min Yue, Tao Ma
semanticscholar   +1 more source

Measurement results of transmit delay diversity for DVB-T networks [PDF]

open access: yes, 2008
This paper describes work carried out by Brunel University and Broadreach systems (UK) to quantify the advantages that can be achieved if transmit diversity is applied to systems employing the DVB standard.
Di Bari, R
core   +1 more source

Rssi-Based Fingerprinting of Bluetooth Low Energy Devices

open access: yesProceedings of the 20th International Conference on Security and Cryptography, 2023
To prevent tracking, the Bluetooth Low Energy protocol integrates privacy mechanisms such as address randomization. However, as highlighted by previous researches address randomization is not a silver bullet and can be circumvented by exploiting other types of information disclosed by the protocol such as counters or timing.
Gagnon, Guillaume   +2 more
openaire   +2 more sources

Evaluating Smartphone Accuracy for RSSI Measurements [PDF]

open access: yesIEEE Transactions on Instrumentation and Measurement, 2021
Smartphones are today affordable devices, capable of embedding a large variety of sensors such as magnetometers or orientation sensors, but also the hardware needed to connect them to most wireless communication technologies such as Wi-Fi, Bluetooth, or cellular networks.
Boussad, Y.   +5 more
openaire   +3 more sources

Outdoor Localization Using BLE RSSI and Accessible Pedestrian Signals for the Visually Impaired at Intersections

open access: yesItalian National Conference on Sensors, 2022
One of the major challenges for blind and visually impaired (BVI) people is traveling safely to cross intersections on foot. Many countries are now generating audible signals at crossings for visually impaired people to help with this problem.
Kiyoung Shin   +6 more
semanticscholar   +1 more source

Reduction of RSSI variations for indoor position estimation in wireless sensor networks

open access: yesEngineering and Applied Science Research, 2018
In this paper, the reduction of RSSI (received signal strength indicator) variation for indoor position estimation in wireless sensor networks (WSNs) is studied through simulation. We demonstrate that using raw RSSI data (with high variation) to estimate
Apidet Booranawong   +3 more
doaj   +1 more source

Smartphone-based Indoor Navigation for Guidance in Finding Location Buildings Using Measured WiFi-RSSI

open access: yesJOIV: International Journal on Informatics Visualization, 2022
This study investigates a Wi-Fi-based indoor navigation system to determine building locations. The system was developed using the fingerprint method from the Received Signal Strength Indication (RSSI) of each Access Point (AP).
Liliek Triyono   +4 more
doaj   +1 more source

Combining Multichannel RSSI and Vision with Artificial Neural Networks to Improve BLE Trilateration

open access: yesItalian National Conference on Sensors, 2022
The demands for accurate positioning and navigation applications in complex indoor environments such as emergency call positioning, fire-fighting services, and rescue operations are increasing continuously.
Sharareh Naghdi, Kyle O’Keefe
semanticscholar   +1 more source

Wireless Localization Based on RSSI Fingerprint Feature Vector

open access: yesInternational Journal of Distributed Sensor Networks, 2015
RSSI wireless signal is a reference information that is widely used in indoor positioning. However, due to the wireless multipath influence, the value of the received RSSI will have large fluctuations and cause large distance error when RSSI is fitted to
Aiguo Zhang   +4 more
doaj   +1 more source

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