356 citations · 1.4k across the 78 of their papers we have counts for
8 papers · 1 filter
An Age of Information Characterization of Frameless ALOHA
Andrea Munari, Francisco Lázaro, Giuseppe Durisi +1
We provide a characterization of the peak age of information (AoI) achievable in a random-access system operating according to the frameless ALOHA protocol. Differently from previo…
On the Properties of Error Patterns in the Constant Lee Weight Channel
Jessica Bariffi, Hannes Bartz, Gianluigi Liva +1
The problem of scalar multiplication applied to vectors is considered in the Lee metric. Unlike in other metrics, the Lee weight of a vector may be increased or decreased by the pr…
Analysis of Low-Density Parity-Check Codes over Finite Integer Rings for the Lee Channel
Jessica Bariffi, Hannes Bartz, Gianluigi Liva +1
We study the performance of nonbinary low-density parity-check (LDPC) codes over finite integer rings over two channels that arise from the Lee metric. The first channel is a discr…
Identification-Detection Group Testing Protocols for COVID-19 at High Prevalence
Marco Chiani, Gianluigi Liva, Enrico Paolini
Group testing allows saving chemical reagents, analysis time, and costs, by testing pools of samples instead of individual samples. We introduce a class of group testing protocols…
Information Freshness Analysis of Slotted ALOHA in Gilbert-Elliot Channels
Andrea Munari, Gianluigi Liva
This letter analyzes a class of information freshness metrics for large IoT systems in which terminals employ slotted ALOHA to access a common channel. Considering a Gilbert- Ellio…
Semantic Communications in Networked Systems: A Data Significance Perspective
Elif Uysal, Onur Kaya, Anthony Ephremides +9
We present our vision for a departure from the established way of architecting and assessing communication networks, by incorporating the semantics of information for communication…
Optimum Detection of Defective Elements in Non-Adaptive Group Testing
Gianluigi Liva, Enrico Paolini, Marco Chiani
We explore the problem of deriving a posteriori probabilities of being defective for the members of a population in the non-adaptive group testing framework. Both noiseless and noi…
Caching in Heterogeneous Satellite Networks with Fountain Codes
Estefanía Recayte, Francisco Lázaro, Gianluigi Liva
In this paper we investigate the performance of caching schemes based on fountain codes in a heterogeneous satellite network. We consider multiple cache-aided hubs which are connec…