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Raj Bhattacharjea (DeepSig, Inc.)21/09/2026, 09:00
Artificial intelligence is rapidly reshaping the radio access network, but hands-on experimentation with AI-RAN has remained out of reach for most practitioners: commercial stacks are closed, and the gap between cellular physical-layer software and the SDR tools this community knows well is wide. This 3–4 hour hands-on workshop closes that gap using OCUDU—the...
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Derek Kozel (GNU Radio)21/09/2026, 09:00
Derek Kozel is awesome and will give an awesome tutorial.
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Dan Boschen21/09/2026, 13:00
[This was one of two workshops at GNU Radio 2024, and is currently on YouTube. According to YouTube likes, this was the more popular of the two and will be updated to demonstrate Marimo, the open-source next generation Python notebook]
Control loops are ubiquitous wherever we need to maintain or stabilize a process variable to a desired set point. In software radio, these techniques are...
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Josh Morman21/09/2026, 14:00
In this workshop, we will explore GNU Radio 4 from a user perspective
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- How it differs from GNU Radio 3
- How to build and install
- How to create blocks
- How to create flowgraphs
- Different mechanisms for flowgraph deployment -
Josh Morman21/09/2026, 15:30
In this workshop we will be exploring more advanced topics of GNU Radio 4 development.
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Veena Misra22/09/2026, 09:00Keynote
![Dr. Veena Mishra][1]
Veena Misra is the MC Dean Distinguished University Professor and founding Director of the NSF Center for Advanced Self-Powered Systems of Integrated Sensors and Technologies (ASSIST). She received her Bachelor’s, Master’s, and Ph.D. from NC State University in electrical engineering in 1991, 1992, and 1995, respectively. After working at the Advanced Products...
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22/09/2026, 09:15Keynote
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Anthony Gravier, Mr Carlos DelValle Rivera (KBR)22/09/2026, 11:00
GNU Radio 3's Python API, while functional, leaves much to be desired for developer ergonomics. Block properties are sparsely documented in Python, forcing developers to cross-reference C++ headers to understand block inputs, outputs, and parameters. This friction-heavy workflow undermines productivity and discourages adoption.
With the arrival of GNU Radio 4, our team saw an opportunity...
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Erebus Oh22/09/2026, 11:00Workshop
TorchSig, an open-source signal processing machine learning (ML) library, is expanding into a reproducible Radio Frequency Machine Learning (RFML) framework with its most recent v2.x releases. We present an interactive workshop that covers: v2.x updates, new libraries torchsig-models and torchsig-gui, and new geolocation capabilities.
TorchSig v2.x updates include a complete restructure of...
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Håkon Vågsether, Josh Morman22/09/2026, 11:15
GR4 Studio is a modern visual development environment for GNU Radio 4 that makes it easier to build, inspect, run and monitor signal-processing applications. It combines a browser based graph editor with GR4's reflected block model and a minimal control-plane architecture, allowing users to compose real GR4 graphs, configure parameters, launch sessions, and connect live visualizations to...
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Dr Bayarpurev Mongol (National university of mongolia)22/09/2026, 11:45
Contactless cardiac-related chest micro-motion can be observed through the phase modulation of a reflected continuous-wave radio signal. This paper presents a bistatic software-defined radar prototype implemented with GNU Radio and an Ettus USRP B210. The RF front end uses a fabricated dual-element microstrip patch assembly on 1.8-mm FR-4, with the transmit and receive elements operating near...
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Mr Neel Pandeya (National Instruments), Jonathon Pendlum (National Instruments)22/09/2026, 13:00
This workshop provides a tutorial on the RFNoC framework, including a discussion on its design and capabilities, demonstrations of several practical examples, and a walk-through of implementing a user-defined RFNoC Block and integrating it into both UHD and GNU Radio. The RFNoC (RF Network-on-Chip) framework is the FPGA architecture used in USRP devices, specifically the E310, E312, E320,...
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Neil Rogers (Analog Devices)22/09/2026, 13:00
As spectral efficiency demands push modern waveforms toward higher peak-to-average power ratios (PAPR), driving Power Amplifiers (PAs) into their non-linear regions is unavoidable. As a results, Digital Pre-Distortion (DPD) is a critical requirement for mitigating spectral regrowth and maintaining compliance in modern telecommunications and aerospace applications. However, developing, testing,...
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Carl Dietrich (Virginia Tech and Software Defined Radio Solutions, LLC)22/09/2026, 13:00
In this workshop, we will demonstrate examples of GNU Radio processing blocks and/or flow graphs developed with assistance of AI engines. Blocks developed to date include a Peak-to-Average Power (PAPR) measurement block, a three-dimensional plot sink, and a source block that uses pre-existing speech-synthesis software to generate a stream of real-valued speech samples suitable for purposes...
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Minhaj Uddin Ahmad (University of Alabama)22/09/2026, 13:30
Open-source software-defined radio (SDR) ecosystems thrive on broad hardware support. Global Navigation Satellite System (GNSS)-SDR, a popular GNSS software receiver based on GNU Radio (GR), is no different. PocketSDR front-ends are an effective alternative to generic commodity SDRs for GNSS research. PocketSDRs are specifically tuned to GNSS bands and share a common clock across multiple RF...
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Sherwin Shiran (Michigan State University)22/09/2026, 13:45
Wirelessly coordinated coherent distributed antenna arrays (CDAs) provide a flexible alternative to fixed monolithic antenna arrays by allowing spatially separated radio nodes to operate cooperatively. This approach is attractive for sensing applications where a single fixed array may be costly, difficult to deploy, limited in aperture size, or vulnerable to a single point of failure. However,...
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Nazia Mozaffar22/09/2026, 14:15
Software Defined Radio (SDR) transmitters that employ digital phase modulation can have imperfections in the transmitted waveform that either distort the intended signal or introduce undesired spurious interference. In the case of zero-intermediate frequency transmission, these impairments include amplitude imbalance between the in-phase and quadrature components, quadrature skew in the...
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Martin Braun (GNU Radio)22/09/2026, 14:30
As the USRP turns 21, it is also growing into new domains of wireless technology, such as new frequency bands with the USRP X420. Once again, the team behind the world's most popular SDR product family takes the stage to talk about the newest hardware products, software features, and anything else that we have been creating to enable you to build ever more powerful wireless systems.
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Neil Rogers (Analog Devices)22/09/2026, 15:30
GNU Radio is universally recognized as the benchmark open-source framework for Software Defined Radio. However, at its core is a high-performance DSP engine which is fundamentally hardware agnostic. By restricting our view of GNURadio to the RF spectrum, we overlook its massive potential for general-purpose test and measurement, audio processing, sensor integration, and control loop...
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Christopher Hansen (Covariant Corporation)22/09/2026, 15:30
This work describes new techniques for low carrier-to-noise ratio (CNR) FM demodulation
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and their implementation in GNU Radio. FM radio was developed nearly 90
years ago and is still in common use for commercial broadcasting, emergency services,
and amateur radio. They key advantage of FM over other analog modulations (i.e. AM
and SSB) is the threshold effect where received signals with a... -
Parker Trzebunia (North Carolina State University)22/09/2026, 16:00
Wideband spectrum sensing and cost-effective RF measurement are increasingly important as wireless systems require larger volumes of clean, reliable RF data. Machine-learning methods for signal detection and classification are especially dependent on training datasets collected from realistic measurements. Commercial software-defined radios (SDRs) offer a low-cost platform for scalable data...
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Mr Marius Siauciulis (University of Strathclyde)22/09/2026, 16:15
This talk presents the next revision of our open RFSoC4x2/GNU Radio high-bandwidth SDR architecture. Earlier versions demonstrated continuous RF sample offload to a host GNU Radio pipeline at sustained rates above 70 Gbit/s, enabling GPU-accelerated inspection of up to 2.4576 GHz of instantaneous bandwidth, and later extended the design into a bidirectional QSFP-based SDR transceiver.
The...
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Seth Pellegrino22/09/2026, 16:45
In this talk we explore using GNU Radio and Verilator to rapidly and incrementally translate an existing flow graph into a form suitable for running in the Programmable Logic (PL) of an FPGA. Where typical FPGA toolchains take many minutes to produce a bitstream, Verilator allows us to swiftly translate our model into C++ sources that produce a cycle-accurate simulation. By integrating our...
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Samuel Brosh (Georgia Tech Research Institute)22/09/2026, 17:00
The development of robust frequency machine learning (RFML) systems has been constrained by the scarcity of realistic training data and the lack of models trained against real-world channel effects. While recent efforts focus on precise mathematical models for RF propagation, the most accurate approach is to operate directly in the real-world electromagnetic environment.
This work presents...
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23/09/2026, 09:00Keynote
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Carl Dietrich (Virginia Tech and Software Defined Radio Solutions, LLC)23/09/2026, 09:45
After briefly enumerating major enabling technologies and applications of SDR, we will describe simulations, examples, and exercises that use GNU Radio to illustrate enabling technologies and help students understand the significance of relevant parameters and explore their effects. On simulated signals, while simultaneously preparing students to use GNU Radio and low-cost SDR hardware to...
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Mr Michael Alldritt23/09/2026, 10:00
Sensor networks are increasingly required in environments where conventional radio-frequency communication is unreliable, attenuated, or unavailable. Examples include dense metallic structures, liquid-filled spaces, enclosed industrial assets, and high-multipath environments where RF propagation is strongly constrained. This paper presents a GNU Radio-based acoustic communication approach for...
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Kevin Hermstein (Columbia University)23/09/2026, 10:30
We present a GNURadio out-of-tree (OOT) module for transmitting, receiving, and processing LiDAR data in real-time. The transmitter packages the data broadcasted over Ethernet from a Velodyne LiDAR in an OFDM packet. The receiver handles packet detection, alignment, carrier frequency and phase offset correction, and equalization. Finally, the demodulated packed LiDAR payload is converted to a...
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Mr Gabriel Garcia (Florida Atlantic University)23/09/2026, 11:00
Experimenting with new modulation schemes on bespoke modem hardware is difficult without a high-throughput interface that lets the hardware act as a software-defined radio (SDR), streaming raw IQ samples to and from GNU Radio. Lacking such an interface, the only way to validate a transmitter/receiver chain is to exchange raw binary payloads between a pair of modems over a low-throughput link,...
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Charles McClish23/09/2026, 11:15
Kyttar is a chip you program by drawing a flowgraph. It is a homogeneous array of small asynchronous compute cells, and a GNU Radio flowgraph maps onto it directly: a block becomes a region of cells, and a connection becomes a route between them. The graph you draw in GNU Radio Companion is essentially the layout of the design on the silicon, so there is no separate hardware-design step to...
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23/09/2026, 11:45Sponsor
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33. Implementation and Testing of Multi-Antenna Techniques using GNU Radio and Low-Cost SDR HardwareCarl Dietrich (Virginia Tech and Software Defined Radio Solutions, LLC)23/09/2026, 13:00
This workshop will demonstrate use of GNU Radio and low-cost SDR hardware such as the Pluto Plus and RTL-SDR to develop and employ multi-antenna techniques to improve signal detection. Examples will include selection diversity, equal-gain combining, maximal ratio combining, and one or more blind adaptive beamforming techniques such as the least-squares constant modulus algorithm (LS-CMA),...
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Mr Sultan Mohammad Manjur (North Carolina State University)23/09/2026, 13:00
Automatic Modulation Classification (AMC) is an important part of next-generation cognitive radio
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networks. However, real-time deployment at the network edge remains challenging because of channel
impairments and overlapping signals. This paper presents an efficient multi-modal deep learning
framework integrated into GNU Radio for robust real-time AMC.
Using TorchSig, we generate a... -
Marian Koop (NI), Mr Neel Pandeya (National Instruments)23/09/2026, 13:00
This session offers a comprehensive tutorial on using the MultiUSRP API and RFNoC API of the USRP Hardware Driver (UHD) driver to leverage USRP devices for real-time RF data streaming. Attendees will be introduced to UHD, exploring its core architecture and the functionalities of the MultiUSRP and RFNoC APIs. The tutorial includes practical examples, options to counter streaming errors, and...
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Christopher Poore (AIS), Dan Love (AIS)23/09/2026, 13:20
FISSURE is an open-source RF framework built around GNU Radio that combines distributed sensing, geolocation, automation, and operator-focused workflows within a unified architecture. While GNU Radio remains the foundation for signal processing and SDR operations, recent development efforts have focused on transforming RF data into actionable situational awareness through target management,...
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Stepan Mazokha (Florida Atlantic University)23/09/2026, 13:55
Recent work has connected large language models to GNU Radio through the Model Context Protocol, enabling natural-language flowgraph generation. These systems can build and validate flowgraphs, but they reason in open loop — the agent never observes whether its design actually works on the air — and prior efforts have found pure LLM orchestration to be sample-inefficient. We present an agentic...
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Dan Bryant23/09/2026, 14:15
This talk explores the technical implementation of integrating GNU Radio into AI-native computing environments by encapsulating GNU Radio flowgraphs within an inference serving framework.
Specifically, GNU Radio flowgraphs are deployed within NVIDIA Triton Inference Server models, enabling DSP pipelines to be managed and orchestrated using the same infrastructure commonly used for machine...
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Joel Isaacson (Vanderbilt University)23/09/2026, 14:45
With the increasing use of unmanned aerial vehicles (UAVs) such as drones, ensuring the security and integrity of such systems has become increasingly important. Current regulations require drones to broadcast Remote ID messages containing information such as the drone's location, velocity, and control station position, intended to be used for identification and situational awareness. However,...
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Jordan Schneider23/09/2026, 15:30
While digital video codecs have been nearly universally adopted in media transmission systems, there remain some characteristics and applications in which the analog systems which proceeded them demonstrate an advantage. Notably, digital media transmission systems experience a sharp cliff in received video quality when a channel's signal to noise ratio decreases beyond a threshold. To cope...
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Dan Boschen23/09/2026, 15:45
What if you could hear a QAM or OFDM signal? By translating RF waveform experimentation into the acoustic domain, realistic multipath, Doppler, digital modulation, and other physical-layer effects encountered in SDR systems can be explored using purpose-built open-source hardware, without the cost barrier of equivalent RF platforms. The key insight is wavelength-consistent scaling: compressing...
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Jose Sanchez Viloria (Florida Atlantic University)23/09/2026, 16:15
We present gr-rt_channel_emulator, a GNU Radio out-of-tree module for position-aware, ray-tracing-assisted channel emulation with runtime updates. The module pairs GNU Radio's real-time IQ processing with NVIDIA Sionna RT as a decoupled channel-impulse-response (CIR) engine. A 3D scene in Mitsuba XML is loaded, transmitter and receiver nodes are placed at configurable coordinates, and Sionna...
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Shronim Tiwari (McGill University)23/09/2026, 16:30
Neutral hydrogen emits radiation at a wavelength of 21 cm (1420 MHz), providing a unique probe of the large-scale structure of the Universe. Because this emission is redshifted by cosmic expansion, observations at lower frequencies allow us to map matter distribution over much of cosmic history, including epochs before the first stars formed. However, the cosmological 21 cm signal is buried...
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Alexander Wyglinski24/09/2026, 09:00Keynote
Wireless communications have long been the invisible infrastructure enabling exploration, discovery, and human connection. As humanity pushes beyond Earth’s boundaries to the stars, the ability to build reliable and scalable communication systems that are intelligent, adaptive, and resilient is becoming as important as the missions they support. Software-defined radios (SDRs) have emerged as a...
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Fabrizio Pollastri (INRIM - Istituto Nazionale di Ricerca Metrologica)24/09/2026, 09:45
Software-defined radios (SDRs) are widely used for wireless communication applications involving data, voice, and image transmission. A less common but increasingly relevant application is precise timing, where accurate synchronization between geographically separated locations is required. Although high-precision timing systems are typically based on expensive SDR platforms equipped with...
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Jan Schirok (Emerson)24/09/2026, 10:15
Building multi antenna systems with many RF channels is a challenge that includes multiple aspects - apart from the RF frontend, cabling, the SDR itself, it usually requires sharing clocks between SDRs.
There are many ways to do that - from only using internal references, distributing 1 PPS (1 Hz) signals, sharing 10 MHz references, all the way to sharing multi GHz Local Oscillator clocks...
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Mr Felipe Ferreira (Instituto Tecnológico de Aeronáutica), Rafael Cruz (Instituto Tecnológico de Aeronáutica)24/09/2026, 11:00
The design of space-borne signal processing payloads faces a critical challenge: maintaining geolocation accuracy and interference mitigation while the platform—whether a CubeSat, UAV, or aircraft—operates under dynamic attitude regimes. Traditional simulation environments often decouple orbital dynamics from digital signal processing (DSP) chains, failing to account for the impact of...
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Tiancheng He (Vanderbilt University)24/09/2026, 11:15
GNU Radio 4 (GR4) introduces a modular scheduling framework in which
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application-defined policies can replace the runtime's default dispatcher. This
is a powerful foundation for more predictable and efficient software-defined
radio. GR4's default scheduling policy already co-locates blocks on shared worker
threads, improving cache locality and reducing context-switching overhead
relative... -
Mr Dennis Joosens (UAntwerpen - IDLab - imec)24/09/2026, 11:45
Large passive sensing systems operate by exploiting ambient Signals of Opportunity (SoOp). This makes precise timing and frequency alignment across multiple receivers essential for extracting coherent information. The National Instruments OctoClock‑G provides a shared reference that enables such synchronisation in multi‑receiver Software-Defined Radio (SDR) platforms.
The synchronisation...
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Christopher Roberts, Ozgur Ozdemir24/09/2026, 12:45
Aerial Experimentation and Research Platform for Advanced Wireless (AERPAW) is the
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first wireless communication research platform envisioned and built to allow studying the
convergence of advanced wireless communication technologies (such as 5G) and autonomous
drones. The platform became generally available to the public in November 2021.
AERPAW as a Batch-Mode facility. Experimenters... -
Soham Desai24/09/2026, 12:45
5G NR and emerging 6G systems are expected to reuse communication
waveforms for sensing, but practical demonstrations face two coupled
problems: reference signals occupy a sparse, traffic-dependent
resource grid, while non-terrestrial links introduce time-varying
delay and Doppler that degrade the coherence required by both
demodulation and sensing.This work presents a...
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Shammi Doly (Tiami Networks Inc.)24/09/2026, 13:00
Next-generation wireless infrastructure is expected to provide both connectivity and sensing through a unified ISAC framework, yet the tradeoffs among communication bandwidth, waveform design, and radio architecture remain largely unexplored. While existing mmWave radars deliver high-fidelity sensing, they operate as standalone systems with dedicated hardware and waveforms. FutureG networks,...
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Martin McCormick (Scale RF Inc.)24/09/2026, 13:15
The proliferation of advanced MIMO and phased-array systems typically requires prohibitive hardware costs and complex, proprietary software stacks. In this presentation, we introduce QuadRF, an open-source 4x4 MIMO software-defined radio development platform specifically designed for experimental phased arrays. Operating in the 4.9–6 GHz (C-band) range, QuadRF brings a novel architectural...
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Mr Krishna Kanth Rokkam (North Carolina State University)24/09/2026, 13:45
Integrated Sensing and Communications (ISAC) is an emerging technology that enables wireless systems to support both communication and sensing functions. This paper presents a software-defined radio (SDR) proof-of-concept for detecting indoor human motion using 5G New Radio (NR) signals, with GNU Radio serving as the software platform for implementing the transceiver and signal processing. The...
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Martin Braun (GNU Radio)24/09/2026, 14:00
Next to CPUs and FPGAs, it is obvious that GPUs play an important role in SDR system implementations. But how do we enable GPUs in a way that is compatible with the modular paradigm of GNU Radio?
In this talk, we shall present how Nvidia's Holoscan has approached this problem, specifically for use with Nvidia GPUs. We present joint work between NI and UT Austin in which we used Nvidia...
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Mr Matthew Dula (Michigan State University)24/09/2026, 14:30
Distributed RF systems have become increasingly relevant in recent years due to the rapid growth of technologies such as cell-free massive MIMO, satellite communication networks, and the Internet of Things, due in part to major benefits in adaptability and scalability. For such systems operating at microwave and millimeter-wave frequencies, it is often necessary for these distributed platforms...
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Mr Jeeva Keshav Sattianarayanin (Indian Institute of Technology Madras)
Modern wireless experiments increasingly need both wideband MIMO performance and rapid software iteration, but conventional host-centric SDR streaming interfaces become fragile as bandwidth, antenna count, and slot-level control demands increase. In this talk, we present a wideband MIMO streaming platform that combines an RFSoC/USRPX410-based radio unit, a 100 Gbps Ethernet fronthaul, and a...
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