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Proceedings Paper

Adaptive digital access protocol: new features and performance improvements
Author(s): B. T. Doshi; S. Dravida; G. J. Kustka; Peter D. Magill; Curtis A. Siller; Sriram Kotikalapudi
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Paper Abstract

This paper reports on a broadband multiple access protocol for bi-directional hybrid fiber-coax (HFC) networks. Referred to here as the enhanced adaptive digital access protocol (ADAPt+TM), it builds upon earlier work to define a medium access control (MAC) protocol amenable to a multiple service environment supporting subscriber access in HFC networks with tree and branch topologies. ADAPt+ efficiently supports different access modes such as synchronous transfer mode (STM), asynchronous transfer mode (ATM), and variable length (VL) native data (e.g., IP, IPX). This enhanced protocol adapts to changing demands for a mix of circuit- and packet-mode applications, and efficiently allocates upstream and downstream bandwidth to isochronous and bursty traffic sources. This paper describes: ADAPt+ for upstream communication and multiplexing/demultiplexing for downstream communication; its applicability to STM, ATM and other native data applications; and performance attributes such as bandwidth efficiency and latency.

Paper Details

Date Published: 4 November 1996
PDF: 10 pages
Proc. SPIE 2917, Broadband Access Systems, (4 November 1996); doi: 10.1117/12.257326
Show Author Affiliations
B. T. Doshi, Lucent Technologies/Bell Labs. (United States)
S. Dravida, Lucent Technologies/Bell Labs. (United States)
G. J. Kustka, Lucent Technologies/Bell Labs. (United States)
Peter D. Magill, Lucent Technologies/Bell Labs. (United States)
Curtis A. Siller, Lucent Technologies/Bell Labs. (United States)
Sriram Kotikalapudi, Lucent Technologies/Bell Labs. (United States)


Published in SPIE Proceedings Vol. 2917:
Broadband Access Systems
Wai Sum Lai; Sam T. Jewell; Curtis A. Siller; Indra Widjaja; Dennis Karvelas; Indra Widjaja; Dennis Karvelas, Editor(s)

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