AP-LET: Enabling deterministic Pub/Sub communication in AUTOSAR Adaptive

IF 3.7 2区计算机科学 Q1 COMPUTER SCIENCE, HARDWARE & ARCHITECTURE Journal of Systems Architecture Pub Date : 2025-03-04 DOI:10.1016/j.sysarc.2025.103390

Davide Bellassai , Claudio Scordino , Daniel Casini , Alessandro Biondi

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Abstract

The automotive software industry is facing a paradigm shift driven by the need to develop more and more advanced functionality distributed on multiple electronic control units. The AUTOSAR Adaptive standard has been designed as a service-oriented architecture on top of a general-purpose operating system to tackle this paradigm shift.

Nevertheless, it does not provide means to ensure deterministic communication, as required in safety-related components.

This paper studies the integration of the System-Level Logical Execution Time (SL-LET) paradigm in AUTOSAR Adaptive.

The key design challenges and requirements to support SL-LET in AUTOSAR Adaptive are described, highlighting how to overcome the considerable differences between the AUTOSAR Classic and Adaptive domains. Then, a meta-protocol named AP-LET is presented, together with two concrete instances: one based on high-priority tasks and another leveraging timestamps in the message payload to handle communications and ensure determinism. A complete implementation of both protocols is also described. AP-LET was finally evaluated with a realistic automotive application, showing its feasibility and effectiveness.

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来源期刊

Journal of Systems Architecture 工程技术-计算机：硬件

CiteScore

8.70

自引率

15.60%

发文量

226

审稿时长

46 days

期刊介绍： The Journal of Systems Architecture: Embedded Software Design (JSA) is a journal covering all design and architectural aspects related to embedded systems and software. It ranges from the microarchitecture level via the system software level up to the application-specific architecture level. Aspects such as real-time systems, operating systems, FPGA programming, programming languages, communications (limited to analysis and the software stack), mobile systems, parallel and distributed architectures as well as additional subjects in the computer and system architecture area will fall within the scope of this journal. Technology will not be a main focus, but its use and relevance to particular designs will be. Case studies are welcome but must contribute more than just a design for a particular piece of software. Design automation of such systems including methodologies, techniques and tools for their design as well as novel designs of software components fall within the scope of this journal. Novel applications that use embedded systems are also central in this journal. While hardware is not a part of this journal hardware/software co-design methods that consider interplay between software and hardware components with and emphasis on software are also relevant here.

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