5 papers
An O-RAN Framework for AI/ML-Based Localization with OpenAirInterface and FlexRIC
Nada Bouknana, Mohsen Ahadi, Florian Kaltenberger +1
Localization is increasingly becoming an integral component of wireless cellular networks. The advent of artificial intelligence (AI) and machine learning (ML) based localization a…
TDoA-Based Self-Supervised Channel Charting with NLoS Mitigation
Mohsen Ahadi, Omid Esrafilian, Florian Kaltenberger +1
Channel Charting (CC) has emerged as a promising framework for data-driven radio localization, yet existing approaches often struggle to scale globally and to handle the distortion…
Experimental Insights from OpenAirInterface 5G positioning Testbeds: Challenges and solutions
Mohsen Ahadi, Adeel Malik, Omid Esrafilian +2
5G New Radio (NR) is a key enabler of accurate positioning in smart cities and smart factories. This paper presents the experimental results from three 5G positioning testbeds runn…
From Concept to Reality: 5G Positioning with Open-Source Implementation of UL-TDoA in OpenAirInterface
Adeel Malik, Mohsen Ahadi, Florian Kaltenberger +6
This paper presents, for the first time, an open-source implementation of the 3GPP Uplink Time Difference of Arrival (UL-TDoA) positioning method using the OpenAirInterface (OAI) f…
Global Scale Self-Supervised Channel Charting with Sensor Fusion
Omid Esrafilian, Mohsen Ahadi, Florian Kaltenberger +1
The sensing and positioning capabilities foreseen in 6G have great potential for technology advancements in various domains, such as future smart cities and industrial use cases. C…