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Proceedings Paper

MAC protocol for an ATM-based SuperPON
Author(s): John D. Angelopoulos; John Koulouris; Stratos K. Fragoulopoulos
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Paper Abstract

Developments in optical amplifiers and the tendency towards fewer and larger switching stages made feasible and desirable the concept of SuperPONs with a range of 100km. Up to 15000 residential customers can share the SuperPON on a TDMA basis lowering the cost of access to B-ISDN services. Tree PONs require a MAC protocol to arbitrate the access to upstream slots among the competing customer ATM cells in a dynamic and efficient way. The protocol presented in this work combines different access mechanisms according to service quality requirements. All bursty traffic is manipulated transparently using a reservation approach with closed loop control so as to handle the unpredictability of arrivals. In contrast, voice, N-ISDN and other delay sensitive services are provided with unsolicited access permits. In addition, composite cells offered quasi- synchronous permits are used to support STM legacy traffic without echo-cancellers. So, ABR traffic which is delay tolerant and more cost sensitive, can and should be concentrated with full exploitation of multiplexing gain prospects. The permit distribution algorithm focuses on cell spacing, control of CDV, almost jitter free access for synchronous traffic and efficiency for ABR traffic.

Paper Details

Date Published: 1 November 1996
PDF: 9 pages
Proc. SPIE 2919, All-Optical Communication Systems: Architecture, Control, and Network Issues II, (1 November 1996); doi: 10.1117/12.256361
Show Author Affiliations
John D. Angelopoulos, National Technical Univ. of Athens (Greece)
John Koulouris, National Technical Univ. of Athens (Greece)
Stratos K. Fragoulopoulos, National Technical Univ. of Athens (Greece)


Published in SPIE Proceedings Vol. 2919:
All-Optical Communication Systems: Architecture, Control, and Network Issues II
Robert A. Cryan; John M. Senior, Editor(s)

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