January 26, 2023: “Association of Non-Binary Code and CCSK modulation”, ECE Seminar, The University of Arizona, Tucson.

Emmanuel Boutillon gave a seminar in the Electrical Computer Engineering Department of the University of Arizona. The slide of the talk are available here.

January 13, 2023: seminar “Tramas para applicationes IoT”, FIEE-Universidad Nacional de Ingenieria, Lima, Peru

Emmanuel Boutillon gave a talk to the student of the Facultad de Ingenieria Eléctrica y Electronica, Universidad Nacional de Ingenieria about the project QCSP.

January 4, 2023: PhD defense of Camille Monière.

Camille Monière will defend his PhD the 4 of January 2023 at 10 a.m (French time). The title of his PhD is “Real-Time Quasi-Cyclic Short Packet (QCSP) Receiver“.

The slide of the presentation are available here.

Abstract: In wireless communications, frame detection and synchronization are usually performed using a preamble, which consumes a significant amount of bandwidth and resources when sending small data packets. Recently, a new kind of preamble-less frame called Quasi Cyclic Short Packet (QCSP) has been proposed. This thesis investigates the possibilities of real-time implementation of the QCSP communication chain. To this end, the algorithms are detailed, both in transmission and reception, and then, where possible, optimized. In addition, the most critical task of the receiver, the detection, is studied in depth. Different levels of parallelism and implementation strategies are detailed for both software and hardware implementations. Several trade-offs between throughput
and resource utilization are also discussed. Finally, full-scale experiments are presented. Thus, the thesis demonstrates that the process of transmitting/receiving a QCSP frame is feasible at a low hardware cost, which makes the QCSP frame attractive for low power wide area networks (LPWAN).

December 5, 2022: Test of QCSP transmission over the sea with Thalos company.

The first maritime test of QCSP transmission has been done early December with Thalos company (Thalos’s website). The QCSP transmitter was integrated in a flat buoy and the receiver was placed on a boat that moved around. This experimentation allowed Thalos to estimate the transmission range from a buoy to the boat.

Buoys system: one for test, one for localization.

Click on the interactive map to have a display of the field result. Just click on the white dots to get picture taken during the navigation and on the green triangle to get information about the received frames (this map has been done by Leonardo Montoya Obeso, trainee student of the Universidad National de Ingeneria (Peru))

October 21, 2022: Presentation of QCSP by Kassem Saied at IMT-Atlantique

Kassem Saied presented the QCSP project at IMT-Atlantique the 21 of October 2022, 14h30, in the room “Grand Amphi”. The record of this presentation (mp4) is available here.

August 29, 2022: Invited talk during the 2022 ISTC workshop (Montreal) to present the QCSP project.

The QCSP project is invited for a presentation during the International Symposium on Topics in Coding  workshop in Montreal, August 2022. See the program here. The presentation can be found here

June 23, 2022: Technoconférence 5G/6G/xG du pôle Images et Réseaux.

The QCSP project will be presented during the Technoconférence “5G/6G/xG, une accélération à maîtriser” organized by the Pole Images et Réseaux (June 23 2022). This event is sponsored by Qualcomm and Nokia, The program can be found here. The slides of the presentation are given here and the video of the presentation can be seen here (between time 1h58 and 2h06).

June 21, 2022: Best Paper presentation award of DASIP’2022.

Camille Monière obtained the best paper presentation award of DASIP’2022. He presented a paper entitled ” “. The slide of his presentation are available here.


May 30, 2022: Second round of field experimentation

The second round of field experimentation to test QCSP in a mobile environment has been done with an enhanced system. At the emitter side, the payload contains the GPS position, the local time, the frame ID and the Raspberry Pi4 internal temperature. This information is now locally recorded inside the RPi4, for tracability. At the receiver side, all the detected frames are stored in order to be post-processed or visualized. Some technical information about this experiment is available here (presentation of Camille Monière during June 2022 internal QCSP meeting).

The result of the experimentation on a map is available online. Just click the picture below to access to the website. The positions of correctly received frames are indicated in blue. Just click on the points to get some information about the received frames (this work has been done by Leonardo Montoya Obeso, trainee student of the Universidad National de Ingeneria (Peru))


April 7, 2022: GDR-ISIS demonstration

Camille Monière (PhD student) will present during the “Implémentations, outils et applications émergentes pour la radio logicielle” day organized by the GDR-ISIS (Paris) the recent results on the real time transmission of QCSP frame in the city of Lorient. The slides of the presentation are availble here (in French).

433 ISM band QCSP receiver placed on rooftop of ENSIBS building (Lorient).

Experimental result

March 25, 2020: PhD defense of Kassem Saied.

Kassem Saied did his PhD defense entitle “Quasi Cyclic Short Packet (QCSP) transmission for Internet of Things”. The report and the slides of the presentation are available: PhD report, Slides of the PhD defense

February 22, 2022: Presentation of the QCSP consortium to the LORA-Alliance.

E. Boutillon did a presentation of the recent result of the QCSP project to the LORA-Consortium Presentation_LORA

September 24, 2021: Co-organisation of GDR ISIS’workshop “Short packet transmission for wireless communications”

24 Sept. 2021: The QCSP project and the ARBURST project organized a GDR ISIS Workshop in Paris. Around 35 people participated in the meeting.
During this day, a poster presented the QCSP project (go here for the poster). Moreover, a real time demonstration of the QCSP project has been presented using GNU radio boards.

August 2021: Publications ISTC’2021

We are pleased to announce to you that 5 papers related to the QCSP project have been accepted to the IEEE international conference on Topics in Coding (ISTC’2021), Montreal, Canada, Sept. 2021.

  • V. Savin, “Non-Binary Polar Codes for Spread-Spectrum Modulations”, International Symposium on Topics in Coding (ISTC), September 2021.
  • F. Cochachin, L. Luzzi, F. Ghaffari, “Reduced Complexity of a Successive Cancellation Based Decoder for NB-Polar Codes”.
  • H. le Blevec, R. Klaimi, S. Weithoffer, C. Abdel Nour and A. Baghdadi, “Low complexity non-binary turbo decoding based on the local-SOVA algorithm”.
  • J. Jabour, C. Marchand, E. Boutillon, “The Best, The Requested and The Default Non-Binary LDPC Decoding Algorithm”.
  • C. Marchand, E. Boutillon, “Rate-adaptive Coded Modulation for Non-binary Decoders”.

Moreover, another paper has also been accepted to the IEEE Workshop on Signal Processing Systems (SiPS’2021) conference, Coimbra, Portugal, Oct. 2021.

  • C. Monière, K. Saied, B. Legal, E. Boutillon, “Times sliding windows for the detection of CCSK frames”