A cyclic-executive-based QoS guarantee over USB | IEEE Conference Publication | IEEE Xplore

A cyclic-executive-based QoS guarantee over USB


Abstract:

Universal Serial Bus (USB) is a popular standard for PC peripheral devices because of its versatile peripheral interconnection specifications. USB not only provides simpl...Show More

Abstract:

Universal Serial Bus (USB) is a popular standard for PC peripheral devices because of its versatile peripheral interconnection specifications. USB not only provides simplified hardware connectors but also supports for various bus traffics, such as isochronous and bulk transfer activities. Although the USB specifications provide a way for users to specify the upper bound on the number of bytes for each data transfer in a 1ms time frame, little work is done to provide QoS guarantees for devices (e.g., the lower bound on the bytes for each device type in a 1ms time frame) and a mechanism in enforcing the guarantees. In this paper we propose a cyclic-executive-based bandwidth reservation and scheduling method to support QoS guarantees over USB, especially for those isochronous bus activities. The proposed bandwidth reservation and scheduling method could reserve USB bandwidth for devices in an on-demand fashion. The capability of the proposed scheme was shown by the implementation and demonstration of a USB-based surveillance system prototype which adopted the proposed scheme.
Date of Conference: 30-30 May 2003
Date Added to IEEE Xplore: 05 June 2003
Print ISBN:0-7695-1956-3
Print ISSN: 1545-3421
Conference Location: Toronto, ON, Canada

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