Smooth migration technologies towards next-generation access systems

Naoto Yoshimoto

doi:10.1117/12.846597

22 January 2010 Smooth migration technologies towards next-generation access systems

Naoto Yoshimoto

Proceedings Volume 7620, Broadband Access Communication Technologies IV; 762005 (2010) https://doi.org/10.1117/12.846597
Event: SPIE OPTO, 2010, San Francisco, California, United States

Abstract

The investigation of next-generation optical access network (NG-OAN) systems as well as the corresponding standardization activities has been steadily progressing. In the near future, whenever such a NG-OAN system is deployed to meet the bandwidth demands, the smooth migration from the existing system is indispensable because current PON systems such as 1G-EPON/G-PON have been massively deployed all over the world. NGA systems should be deployed so as not to interrupt existing system operation or degrade in-service user availability. I introduce recent technical topics related to co-existence with 1G/10G-EPON as an example. In particular, a 1G/10G dual-rate dynamic bandwidth allocation (DBA) technique and a 1G/10G dual-rate burst-mode transceiver are key technologies enabling 1G- and 10Gdata to be handled simultaneously. Furthermore, from the CAPEX/OPEX reduction viewpoint, longer lifetime system is preferable. NGA systems will, therefore, be more flexible to meet later bandwidth demands, wide coverage requirement, and energy-efficient operation. WDM technology is an attractive approach to meeting these goals.

Citation Download Citation

Naoto Yoshimoto "Smooth migration technologies towards next-generation access systems", Proc. SPIE 7620, Broadband Access Communication Technologies IV, 762005 (22 January 2010); https://doi.org/10.1117/12.846597

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