647 citations · 1.4k across the 61 of their papers we have counts for
11 papers · 1 filter
A Maximum-Likelihood-based Multi-User LoRa Receiver Implemented in GNU Radio
Mathieu Xhonneux, Joachim Tapparel, Orion Afisiadis +2
LoRa is a popular low-power wide-area network (LPWAN) technology that uses spread-spectrum to achieve long-range connectivity and resilience to noise and interference. For energy e…
Hardware Implementation of Iterative Projection-Aggregation Decoding of Reed-Muller Codes
Marzieh Hashemipour-Nazari, Kees Goossens, Alexios Balatsoukas-Stimming
In this work, we present a simplification and a corresponding hardware architecture for hard-decision recursive projection-aggregation (RPA) decoding of Reed-Muller (RM) codes. In…
Non-Linear Self-Interference Cancellation via Tensor Completion
Freek Jochems, Alexios Balatsoukas-Stimming
Non-linear self-interference (SI) cancellation constitutes a fundamental problem in full-duplex communications, which is typically tackled using either polynomial models or neural…
On the Advantage of Coherent LoRa Detection in the Presence of Interference
Orion Afisiadis, Sitian Li, Andreas Burg +1
It has been shown that the coherent detection of LoRa signals only provides marginal gains of around 0.7 dB on the additive white Gaussian noise (AWGN) channel. However, ALOHA-base…
Implementation of a High-Throughput Fast-SSC Polar Decoder with Sequence Repetition Node
Haotian Zheng, Alexios Balatsoukas-Stimming, Zizheng Cao +1
Even though polar codes were adopted in the latest 5G cellular standard, they still have the fundamental problem of high decoding latency. Aiming at solving this problem, a fast si…
Lupulus: A Flexible Hardware Accelerator for Neural Networks
Andreas Toftegaard Kristensen, Robert Giterman, Alexios Balatsoukas-Stimming +1
Neural networks have become indispensable for a wide range of applications, but they suffer from high computational- and memory-requirements, requiring optimizations from the algor…
Threshold-Based Fast Successive-Cancellation Decoding of Polar Codes
Haotian Zheng, Seyyed Ali Hashemi, Alexios Balatsoukas-Stimming +4
Fast SC decoding overcomes the latency caused by the serial nature of the SC decoding by identifying new nodes in the upper levels of the SC decoding tree and implementing their fa…
OptComNet: Optimized Neural Networks for Low-Complexity Channel Estimation
Michel van Lier, Alexios Balatsoukas-Stimming, Henk Corporaaal +1
The use of machine learning methods to tackle challenging physical layer signal processing tasks has attracted significant attention. In this work, we focus on the use of neural ne…
An Open-Source LoRa Physical Layer Prototype on GNU Radio
Joachim Tapparel, Orion Afisiadis, Paul Mayoraz +2
LoRa is the proprietary physical layer (PHY) of LoRaWAN, which is a popular Internet-of-Things (IoT) protocol enabling low-power devices to communicate over long ranges. A number o…
Identification of Non-Linear RF Systems Using Backpropagation
Andreas Toftegaard Kristensen, Andreas Burg, Alexios Balatsoukas-Stimming
In this work, we use deep unfolding to view cascaded non-linear RF systems as model-based neural networks. This view enables the direct use of a wide range of neural network tools…
Hardware Implementation of Neural Self-Interference Cancellation
Yann Kurzo, Andreas Toftegaard Kristensen, Andreas Burg +1
In-band full-duplex systems can transmit and receive information simultaneously on the same frequency band. However, due to the strong self-interference caused by the transmitter t…