146 citations · 223 across the 8 of their papers we have counts for
10 papers
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…
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…
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…
A Low-Complexity LoRa Synchronization Algorithm Robust to Sampling Time Offsets
Mathieu Xhonneux, Orion Afisiadis, David Bol +1
LoRaWAN is nowadays one of the most popular protocols for low-power Internet-of-Things communications. Although its physical layer, namely LoRa, has been thoroughly studied in the…
Coded LoRa Frame Error Rate Analysis
Orion Afisiadis, Andreas Burg, Alexios Balatsoukas-Stimming
In this work, we study the coded frame error rate (FER) of LoRa under additive white Gaussian noise (AWGN) and under carrier frequency offset (CFO). To this end, we use existing ap…
On the Error Rate of the LoRa Modulation with Interference
Orion Afisiadis, Matthieu Cotting, Andreas Burg +1
LoRa is a chirp spread-spectrum modulation developed for the Internet of Things. In this work, we examine the performance of LoRa in the presence of both additive white Gaussian no…
LoRa Symbol Error Rate Under Non-Chip- and Non-Phase-Aligned Interference
Orion Afisiadis, Matthieu Cotting, Andreas Burg +1
In this work, we examine the performance of the LoRa chirp spread spectrum modulation in the presence of both additive white Gaussian noise and interference from another LoRa user.…
LoRa Digital Receiver Analysis and Implementation
Reza Ghanaatian, Orion Afisiadis, Matthieu Cotting +1
Low power wide area network technologies (LPWANs) are attracting attention because they fulfill the need for long range low power communication for the Internet of Things. LoRa is…
Sliding Window Spectrum Sensing for Full-Duplex Cognitive Radios with Low Access-Latency
Orion Afisiadis, Andrew C. M. Austin, Alexios Balatsoukas-Stimming +1
In a cognitive radio system the failure of secondary user (SU) transceivers to promptly vacate the channel can introduce significant access-latency for primary or high-priority use…
A Low-Complexity Improved Successive Cancellation Decoder for Polar Codes
Orion Afisiadis, Alexios Balatsoukas-Stimming, Andreas Burg
Under successive cancellation (SC) decoding, polar codes are inferior to other codes of similar blocklength in terms of frame error rate. While more sophisticated decoding algorith…