arXiv subjects

Anirudha Sahoo

Publications and source records attributed to Anirudha Sahoo.

3 recordsLinked to original sources

arXiv2025

Detecting Airborne Objects with 5G NR Radars

The integration of sensing capabilities into 5G New Radio (5G NR) networks offers an opportunity to enable the detection of airborne objects without the need for dedicated radars. This paper investigates the feasibility of using standardized Positioning Reference Signals (PRS) to detect UAVs in Urban Micro (UMi) and Urban Macro (UMa) propagation environments. A full 5G NR radar processing chain is implemented, including clutter suppression, angle and range estimation, and 3D position reconstruction. Simulation results show that performance strongly depends on the propagation environment. 5G NR radars exhibit the highest missed detection rate, up to 16%, in UMi, due to severe clutter. Positioning error increases with target distance, resulting in larger errors in UMa scenarios and at higher UAV altitudes. In particular, the system achieves a position error within 4m in the UMi environment and within 8m in UMa. The simulation platform has been released as open-source software to support reproducible research in integrated sensing and communication (ISAC) systems.

eess.SP↗

arXiv2024

Sensing Performance of the IEEE 802.11bf Protocol and Its Impact on Data Communication

Wi-Fi sensing has been used to detect and track movements in an environment, resulting in the emergence of several innovative applications. Wi-Fi sensing can detect movement and locate objects by analyzing variations in the Wi-Fi signal due to its interaction with moving objects. Until recently, Wi-Fi sensing has been primarily available through proprietary solutions, which has limited its adoption. However, the recent initiative by the IEEE to develop the IEEE 802.11bf standard promises to make the adoption of Wi-Fi sensing widespread. Although Wi-Fi sensing procedures in communication standards can be overhead, there is currently a lack of literature exploring the sensing performance of Wi-Fi sensing procedures specified in the IEEE 802.11bf standard and its impact on data communication. Therefore, this paper presents a comprehensive evaluation of the sensing performance of the IEEE 802.11bf protocol and its impact on data communication in different configurations. Our findings expose the limitations of specific configurations and pave the way to provide guidance on efficient operating configurations of an IEEE 802.11bf network.

cs.NI↗

arXiv2024

An Admission Control Algorithm for Isochronous and Asynchronous Traffic in IEEE 802.11ad MAC

Due to availability of large amount of bandwidth in the 60 GHz band and support of contention-free channel access called Service Period (SP), the IEEE 802.11ad/ay Wi-Fi standard is well suited for low latency and high data rate applications. IEEE 802.11ad supports two types of SP user traffic: isochronous and asynchronous. These user traffic need guaranteed SP duration before their respective deadlines. Hence, admission control plays an important role in an IEEE 802.11ad system. In an earlier work, we studied admission control and scheduling of isochronous and asynchronous traffic in an IEEE 802.11ad system, but we assumed the asynchronous requests to be periodic to keep the algorithm simple. That assumption resulted in overallocation of resource and potential degradation of performance. In this paper, we present an admission control algorithm which does not make such assumption and yet still maintains a linear run time complexity and allocates resources to the requests in a proportional fair manner. We provide arguments to establish correctness of the algorithm in terms of guaranteeing SP allocation to the requests before their respective deadlines.

cs.NI↗