In this survey paper, we review the random access (RA) techniques with particular emphasis
on the issues and the possible solutions applicable to satellite networks. RA dates back to …

We consider a frame asynchronous coded slotted ALOHA (FA-CSA) system for
uncoordinated multiple access, where users join the system on a slot-by-slot basis …

Recently, random access protocols have acquired a new wave of interest, not only from the
satellite communication community, but also from researchers active in fields, such as …

In this paper, the problem of using uncoordinated multiple access (UMA) to serve a massive
amount of heterogeneous users is investigated. Leveraging the heterogeneity, we propose a …

We consider a physical-layer network coding strategy for the random-access channel, based
on compute-and-forward. When packets collide, it is possible to reliably recover a linear …

Irregular repetition slotted Aloha (IRSA) has shown significant advantages as a modern
technique for uncoordinated random access with massive number of users due to its …

In this paper, we study via simulation the performance of irregular repetition slotted ALOHA
under multi-packet detection and different patterns of the load process. On the one hand, we …

In this article, we focus on a grant-free massive access setup and analyze its Age of
Information (AoI), where a large number of user equipments (UEs) are randomly activated …

In recent years, the Internet of Things (IoT) industry has become a research hotspot. With the
advancement of satellite technology, the satellite Internet of Things is further developed …

The collision of ranging signals in the process of massive concurrent access ranging
seriously affects the networking speed of satellite communication networks. Random access …