Improved Guaranteed Access MAC Protocol for HFC Networks

Authors

Rico Schwendener

Reference

Proceedings of the Sixth IEEE Symposium on Computers and Communications, 2001 (ISCC 2001), pp. 621 - 627, July 2001

DOI: 10.1109/ISCC.2001.935440

Abstract

The results of the performance evaluation of an improved medium access control (MAC) protocol for hybrid fibre coax (HFC) access networks are presented in this paper. The protocol provides quality of service (QoS) for asynchronous transfer mode (ATM) as well as for Internet protocol (IP) services. A dynamic, centralized control scheme based on polling is used to accommodate ATM traffic on multiple shared upstream channels of the HFC network. Different aspects of the guaranteed access MAC protocol are investigated by simulation. In the second part of the paper an improved polling slot distribution scheme is proposed and evaluated. It provides shorter bandwidth reservation delays than static polling.

Keywords

MAC, hybrid fibre coax (HFC), guaranteed access

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