An Evaluation of ACP Collision Resolution Performance

952578

08/01/1995

Event
Symposium On Future Transportation Electronics: Multiplexing And In-Vehicle Networking
Authors Abstract
Content
Ford's Audio Control Protocol (ACP) is a UART-based protocol which does not use bitwise arbitration. Instead, software algorithms provide collision avoidance and collision resolution. The collision resolution method is non-deterministic and whether or not all collisions can be resolved within a specified time interval is an important ACP protocol issue.
To focus on this technical issue, an executable mathematical model of ACP's data link layer was constructed to characterize all transmit, receive, and timing elements of the protocol. Given the performance requirement that all collisions must resolve within a specified time interval, this model was used to analyze the protocol's byte-level collision behavior. This paper examines the performance characteristics of ACP's collision resolution algorithm, and recommends improvements.
Meta TagsDetails
DOI
https://doi.org/10.4271/952578
Pages
16
Citation
Emaus, B., and Worcester, D., "An Evaluation of ACP Collision Resolution Performance," SAE Technical Paper 952578, 1995, https://doi.org/10.4271/952578.
Additional Details
Publisher
Published
Aug 1, 1995
Product Code
952578
Content Type
Technical Paper
Language
English