Author_Institution :
Transmission Syst. Lab., NTT Corp., Kanagawa, Japan
Abstract :
The key technologies required for the development of optical transport networks, namely, optical fiber transmission and digital transport, which includes transmission signal multiplexing, transport nodes, and network operation functions, are highlighted. The trends in transport technology, the impact of synchronous digital hierarchy (SDH) and asynchronous transfer mode (ATM), the role of telecommunications management networks, and network integrity enhancement techniques are elucidated. It is demonstrated that these technologies have brought about a great change in transport network design and performance. Further innovations are required to fully realize a high-performance computer communication network, a cost-effective nationwide B-ISDN, and local networks for video distribution. These include the realization of an optical access transport network and the extension of trunk network capabilities which will be possible with optical path layer technologies
Keywords :
B-ISDN; asynchronous transfer mode; computer networks; optical links; synchronous digital hierarchy; telecommunication network management; ATM; B-ISDN; SDH; asynchronous transfer mode; computer communication network; digital transport; network integrity enhancement techniques; network operation functions; optical access transport network; optical fiber transmission; optical path layer technologies; optical transport networks; synchronous digital hierarchy; telecommunications management networks; transmission signal multiplexing; transport nodes; trends; trunk network capabilities; Asynchronous transfer mode; Computer network management; Computer networks; Distributed computing; Optical fiber networks; Optical fibers; Synchronous digital hierarchy; Technological innovation; Technology management; Telecommunication network management;
