164 citations · 322 across the 19 of their papers we have counts for
14 papers · 1 filter
Evolution of the 5G New Radio Two-Step Random Access towards 6G Unsourced MAC
Patrick Agostini, Jean-Francois Chamberland, Federico Clazzer +7
This report summarizes some considerations on possible evolutions of grant-free random access in the next generation of the 3GPP wireless cellular standard. The analysis is carried…
An Investigation of the Compressed Sensing Phase in Unsourced Multiple Access
Federico Clazzer, Farouk Amri, Marcel Grec
A vast population of low-cost low-power transmitters sporadically sending small amounts of data over a common wireless medium is one of the main scenarios for Internet of things (I…
Error Floor Analysis of Irregular Repetition ALOHA
Federico Clazzer, Alexandre Graell i Amat
With the rapid expansion of the Internet of Things, the efficient sharing of the wireless medium by a large amount of simple transmitters is becoming essential. Scheduling-based so…
Grant-Free Coexistence of Critical and Non-Critical IoT Services in Two-Hop Satellite and Terrestrial Networks
Rahif Kassab, Andrea Munari, Federico Clazzer +1
Terrestrial and satellite communication networks often rely on two-hop wireless architectures with an access channel followed by backhaul links. Examples include Cloud-Radio Access…
Protograph LDPC Code Design for Asynchronous Random Access
Federico Clazzer, Balazs Matuz, Sachini Jayasooriya +2
This work addresses the physical layer channel code design for an uncoordinated, frame- and slot-asynchronous random access protocol. Starting from the observation that collisions…
Modern Random Access for Beyond-5G Systems: a Multiple-Relay ALOHA Perspective
Andrea Munari, Federico Clazzer
Modern random access protocols are emerging as an efficient yet simple solution for arising internet of things (IoT) applications in upcoming beyond-5G systems. In this context, bo…