Tootfinder

HiCR, an Abstract Model for Distributed Heterogeneous Programming
Sergio Miguel Martin, Luca Terracciano, Kiril Dichev, Noah Baumann, Jiashu Lin, Albert-Jan Yzelman
https://arxiv.org/abs/2509.01425

HiCR, an Abstract Model for Distributed Heterogeneous Programming
We present HiCR, a model to represent the semantics of distributed heterogeneous applications and runtime systems. The model describes a minimal set of abstract operations to enable hardware topology discovery, kernel execution, memory management, communication, and instance management, without prescribing any implementation decisions. The goal of the model is to enable execution in current and future systems without the need for significant refactoring, while also being able to serve any gover…

Finite-blocklength Fluid Antenna Systems With Spatial Block-Correlation Channel Model
Zhentian Zhang, Kai-Kit Wong, David Morales-Jimenez, Hao Jiang, Pablo Ram\'irez-Espinosa, Chan-Byoung Chae, Christos Masouros
https://arxiv.org/abs/2509.24333

Finite-blocklength Fluid Antenna Systems With Spatial Block-Correlation Channel Model
Massive connectivity with ultra-low latency and high reliability necessitates fundamental advances in future communication networks operating under finite-blocklength (FBL) transmission. Fluid antenna systems (FAS) have emerged as a promising enabler, offering superior spectrum and energy efficiency in short-packet/FBL scenarios. In this work, by leveraging the simplicity and accuracy of block-correlation channel modeling, we rigorously bound the performance limits of FBL-FAS from a statistical…

Demonstrator Testbed for Effective Precoding in MEO Multibeam Satellites
Jorge L. Gonz\'alez-Rios, Liz Mart\'inez Marrero, Juan Duncan, Luis M. Garc\'es-Socarr\'as, Raudel Cuiman Marquez, Juan A. V\'asquez Peralvo, Jevgenij Krivochiza, Symeon Chatzinotas, Bj\"orn Ottersten
https://arxiv.org/abs/2508.19657

Demonstrator Testbed for Effective Precoding in MEO Multibeam Satellites
The use of communication satellites in medium Earth orbit (MEO) is foreseen to provide quasi-global broadband Internet connectivity in the coming networking ecosystems. Multi-user multiple-input single-output (MU-MISO) digital signal processing techniques, such as precoding, emerge as appealing technological enablers in the forward link of multi-beam satellite systems operating in full frequency reuse (FFR). However, the orbit dynamics of MEO satellites pose additional challenges that must be c…

#photography
A storm is coming over Murtensee.

TIL about Widmanstätten-structures, a pattern of cross-hatching lines on the surface of iron-rich meteorites. The pattern was named after Alois Joseph Franz Xaver Beck Edler von Widmanstätten.
https://en.wikipedia.org/wiki/Widmanstätten_pattern

Digital Signal Processing from Classical Coherent Systems to Continuous-Variable QKD: A Review of Cross-Domain Techniques, Applications, and Challenges
Davi Juv\^encio Gomes de Sousa, Caroline da Silva Morais Alves, Val\'eria Loureiro da Silva, Nelson Alves Ferreira Neto
https://arxiv.org/abs/2509.20141…

Digital Signal Processing from Classical Coherent Systems to Continuous-Variable QKD: A Review of Cross-Domain Techniques, Applications, and Challenges
This systematic review investigates the application of digital signal processing (DSP) techniques -- originally developed for coherent optical communication systems to continuous-variable quantum key distribution (CV-QKD). The convergence of these domains has enabled significant advances in CV-QKD performance, particularly in phase synchronization, polarization tracking, and excess noise mitigation. To provide a comprehensive and reproducible synthesis of this emerging field, we employed the AP…

A Theory of Goal-Oriented Medium Access: Protocol Design and Distributed Bandit Learning
Federico Chiariotti, Andrea Zanella
https://arxiv.org/abs/2508.19141 https://

A Theory of Goal-Oriented Medium Access: Protocol Design and Distributed Bandit Learning
The Goal-oriented Communication (GoC) paradigm breaks the separation between communication and the content of the data, tailoring communication decisions to the specific needs of the receiver and targeting application performance. While recent studies show impressive encoding performance in point-to-point scenarios, the multi-node distributed scenario is still almost unexplored. Moreover, the few studies to investigate this consider a centralized collision-free approach, where a central schedul…

I first read "Mother Earth, Mother Board" by Neal Stephenson around 15 years ago. It included a visit to the Telegraph Museum (now PK Porthcurno Museum of Global Communications) at Porthcurno in Cornwall, and I finally got to go there. One of the things that Stephenson describes is a collection of faulty cables. And its still on display.

Agent Communications toward Agentic AI at Edge -- A Case Study of the Agent2Agent Protocol
Qiang Duan, Zhihui Lu
https://arxiv.org/abs/2508.15819 https://a…

Agent Communications toward Agentic AI at Edge -- A Case Study of the Agent2Agent Protocol
The current evolution of artificial intelligence introduces a paradigm shift toward agentic AI built upon multi-agent systems (MAS). Agent communications serve as a key to effective agent interactions in MAS and thus have a significant impact on the performance of agentic AI applications. The recent research on agent communications has made exciting rapid progress that leads to a variety of protocol designs, among which the Agent2Agent (A2A) protocol is considered the most representative one. S…

Joint Time-Position Statistics and Fisher Information in Drift-Diffusion Molecular Channels
Yun-Feng Lo, Yen-Chi Lee
https://arxiv.org/abs/2508.18680 https://

Joint Time-Position Statistics and Fisher Information in Drift-Diffusion Molecular Channels
This letter presents a closed-form characterization of the joint distribution of first arrival time (FAT) and first arrival position (FAP) in diffusion-based molecular communication (MC) systems with drift. Prior studies have investigated FAT modeling via inverse Gaussian distributions [1] and applied FAT statistics for parameter estimation and synchronization tasks [2], [3], while more recent work has characterized FAP for spatial channel analysis [4]. In contrast, we derive an explicit joint …