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Time Properties of the BuST Protocol under the NPA Budget Allocation Scheme
BibTeX
@MISC{Franchino_timeproperties,
author = {Gianluca Franchino and Giorgio C. Buttazzo and Scuola Superiore S. Anna and Tullio Facchinetti},
title = {Time Properties of the BuST Protocol under the NPA Budget Allocation Scheme},
year = {}
}
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Abstract
Token passing is a channel access technique used in several communication networks. Among them, one of the most effective solution for supporting both real-time trafc (synchronous messages) and non real-time traf-c (asynchronous messages), is the so-called timed-token protocol. Recently, a new token passing protocol, called Budget Sharing Token protocol (BuST), was proposed to improve the existing timed-token approaches in terms of synchronous bandwidth guarantee, while guaranteeing a minimum throughput for the asynchronous trafc. This paper analyzes the ability of BuST to manage real-time and non real-time trafc in comparison with the clas-sic timed-token protocol and its modied version, under the Normalized Proportional Allocation (NPA) scheme. We will show that BuST achieves higher guaranteed real-time bandwidth than the original timed-token protocol, and improves the service for the non real-time trafc re-spect to its modied version. 1
Keyphrases
npa budget allocation scheme bust protocol time property modied version original timed-token protocol new token passing protocol clas-sic timed-token protocol asynchronous message synchronous bandwidth guarantee timed-token approach budget sharing token protocol so-called timed-token protocol several communication network non real-time traf-c channel access technique non real-time trafc re-spect asynchronous trafc effective solution real-time trafc synchronous message normalized proportional allocation real-time bandwidth token passing minimum throughput non real-time trafc
