activity
20232026
most citedIntegrated Access and Backhaul in 5G with Aerial Distributed Unit using OpenAirInterface

2 citations · 2 across the 6 of their papers we have counts for

collaborators

7 papers

cs.IT2026

A Ray-Traced Digital Twin for 5G NR Positioning with OpenAirInterface

Nima Chaharbaghi, Florian Kaltenberger, Bartosz Podrygajlo +2

Evaluating 5G positioning on a physical testbed ties every measurement to one propagation environment and one antenna layout, so any question about an alternative deployment requir…

cs.IT2025

First Results on UAV-aided User Localization Using ToA and OpenAirInterface in 5G NR

Omid Esrafilian, Rakesh Mundlamuri, Florian Kaltenberger +2

This paper considers the challenge of localizing ground users with the help of a radio-equipped unmanned aerial vehicle (UAV) that collects measurements from users. We utilize time…

cs.IT2024

Round Trip Time Estimation Utilizing Cyclic Shift of Uplink Reference Signal

Rajeev Gangula, Tommaso Melodia, Rakesh Mundlamuri +1

In the context of fifth-generation new radio (5G NR) technology, it is not possible to directly obtain an absolute uplink (UL) channel impulse response (CIR) at the base station (g…

cs.IT2024

5G NR Positioning with OpenAirInterface: Tools and Methodologies

Rakesh Mundlamuri, Rajeev Gangula, Florian Kaltenberger +1

The fifth-generation new radio (5G NR) technology is expected to provide precise and reliable positioning capabilities along with high data rates. The Third Generation Partnership…

cs.IT2024

Novel Round Trip Time Estimation in 5G NR

Rakesh Mundlamuri, Rajeev Gangula, Florian Kaltenberger +1

The fifth generation new radio (5G NR) technology is expected to fulfill reliable and accurate positioning requirements of industry use cases, such as autonomous robots, connected…

cs.IT2023★ 2 cited

Integrated Access and Backhaul in 5G with Aerial Distributed Unit using OpenAirInterface

Rakesh Mundlamuri, Omid Esrafilian, Rajeev Gangula +5

In this work, we propose an UAV-aided Integrated Access and Backhaul (IAB) system design offering 5G connectivity to ground users. UAV is integrated with a distributed unit (DU) ac…

cs.IT2023

Sensing aided Channel Estimation in Wideband Millimeter-Wave MIMO Systems

Rakesh Mundlamuri, Rajeev Gangula, Christo Kurisummoottil Thomas +2

In this work, the uplink channel estimation problem is considered for a millimeter wave (mmWave) multi-input multi-output (MIMO) system. It is well known that pilot overhead and co…