"The 2nd order of magnitude" - the video revolution and all-optical services

Proceedings of 2003 5th International Conference on Transparent Optical Networks, 2003. Pub Date : 2003-06-29 DOI:10.1109/ICTON.2003.1263148

P. Andersson

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Abstract

Summary form only given. "The 1st order of magnitude" - from POTS to DSL (64 kb/s to 512 kb/s) - is today being installed with a speed that exceeds expectations. It is now time to look ahead to "the 2nd order of magnitude" in research and development. This means the step from sub-Mb/s to multi-Mb/s to the end-user, and the corresponding networks. Practically the only driver for this would be video services in some form. The paper reviews the drivers for video services from a basic human and historic perspective. It also examines the bandwidth and service requirements for this "video revolution", and the role optical networks can play. The new image devices are not "stationary targets", so that the existing common perception of "2 Mb/s per image channel" will not be satisfactory for all time. Moreover, delivery will be over a multiplicity of competing media: broadcast, cable, discs, copper, and fibre. Quality and personalisation, both very bandwidth-driving, will be a critical competitive advantage. The role of optics is fundamental, but its role as an independent service-layer is more unclear, and depends on a matching between end-user and business oriented requirements, that must have a direct, technical realisation in the optical layer if the function shall be effectively solved by "all-optical" approaches.

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“第二数量级”——视频革命和全光服务

只提供摘要形式。“第一数量级”——从POTS到DSL (64 kb/s到512 kb/s)——今天正在以超出预期的速度安装。现在是时候展望研发的“第二量级”了。这意味着从sub-Mb/s到multi-Mb/s到最终用户，以及相应的网络的步骤。实际上，唯一的驱动因素就是某种形式的视频服务。本文从基本的人和历史的角度回顾了视频服务的驱动因素。本文还探讨了这场“视频革命”的带宽和业务需求，以及光网络可以发挥的作用。新的图像设备不是“固定目标”，因此现有的“每个图像通道2 Mb/s”的普遍感知将不会一直令人满意。此外，传输将通过多种相互竞争的媒体进行:广播、有线电视、光盘、铜线和光纤。质量和个性化都是带宽驱动型产品，它们将成为关键的竞争优势。光学的作用是基础性的，但其作为独立服务层的作用还不明确，并且依赖于终端用户和面向业务的需求之间的匹配，如果要通过“全光”的方式有效解决功能，必须在光学层中有直接的技术实现。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Proceedings of 2003 5th International Conference on Transparent Optical Networks, 2003.

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