Upstream traffic multiplexing in photonic ATM access networks

Giovanna Girola; Guido A. Maier; Mario Martinelli; Achille Pattavina

doi:10.1117/12.327052

7 October 1998 Upstream traffic multiplexing in photonic ATM access networks

Giovanna Girola, Guido A. Maier, Mario Martinelli, Achille Pattavina

Proceedings Volume 3531, All-Optical Networking: Architecture, Control, and Management Issues; (1998) https://doi.org/10.1117/12.327052
Event: Photonics East (ISAM, VVDC, IEMB), 1998, Boston, MA, United States

Abstract

For the future development of residential broadband telecommunication services the present access infrastructure must be upgraded. Fiber-To-The-Home (FTTH) optical networks, though still expensive today, appear to be a future-proof solution. FTTH networks based on passive optical Remote Nodes (RN) and supporting ATM switching (ATM-PONs) have been demonstrated and are going to be standardized. In these networks the optical hardware in the RN is very simple, but a multiple access protocol is needed for upstream traffic control. In most protocols proposed in literature the control is performed electronically in a centralized way by the Central Office. In this paper we study multiple access schemes for FTTH networks which perform upstream traffic control in a distributed way with the intervention of the user Optical Network Terminations (ONTs) and of the RN only. We will also consider the case, based on recent research in photonic packet switching, in which the RN is able to perform all-optical ATM-multiplexing. We will employ ONT-RN signalling to make the relatively expensive RN optical buffer co-operate with the electronic buffers located in the ONTs. The different solutions presented will be compared by simulating the network behavior under various traffic conditions. In conclusion, in this work we evaluate performance advantages achievable in FTTH networks by increasing the optical complexity of the RN and by introducing control schemes which allow a distributed upstream traffic management and, in the case of an RN able to perform all-optical ATM-multiplexing, the co-operation of the RN buffer with the ONT buffers.

Citation Download Citation

Giovanna Girola, Guido A. Maier, Mario Martinelli, and Achille Pattavina "Upstream traffic multiplexing in photonic ATM access networks", Proc. SPIE 3531, All-Optical Networking: Architecture, Control, and Management Issues, (7 October 1998); https://doi.org/10.1117/12.327052

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KEYWORDS

Radon

Asynchronous transfer mode

Fiber to the x

Networks

Multiplexing

Network architectures

Electronics

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