Abstract
The hybrid fiber coax (HFC) network represents the last mile in the delivery of multimedia information to the home. The IEEE 802.14 committee has started the process of standardizing the protocols to be used in these networks. One important protocol that HFC networks have to support is ATM. Thereby HFC networks can take advantage of the support for multimedia sources that is inherent in ATM networks. One potential problem in HFC networks, is that in the upstream direction (from the home to the cable headend), multiple sources may try to contend for the channel at the same time. This leads to the necessity for medium access control (MAC) protocols below the ATM layer. The paper points out techniques by means of which the various ATM classes of service may be supported by frame based MAC protocols in an HFC network.
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