Read e-book online Access Networks: Technology and V5 Interfacing PDF

By Alex Gillespie

ISBN-10: 089006928X

ISBN-13: 9780890069288

Offers a view of present interfacing know-how, in particular V5, the worldwide interface ordinary. The textual content examines either the basics and complicated features of community entry know-how, and the implication for the way forward for entry networks, as much as soliton transmission and quantum cryptology. The e-book is split into sections: technological concerns and interface matters. Separate chapters on complicated copper, optical fibre, complicated optical and radio entry applied sciences, the powering of entry networks, ATM within the entry community and the supported companies are incorporated.

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1 Duplexing Techniques A number of techniques may be used to separate the directions of transmission on an optical fiber. These range from the use of a different fiber for each direction, through optical techniques using directional coupling and different wavelengths, to the use of electronic subcarriers and time multiplexing. 1 Fibers The simplest way of separating the directions of transmission is to use a different fiber for each direction. This technique is referred to as space-division multiplexing (SDM) or, more accurately, space-division duplexing (SDD).

In practice, this is not a significant problem, because the range of single-ball ping-pong is adequate for the initial deployment of systems. TCM has the advantage that it is unaffected by near-end optical and electronic crosstalk, since the receiver is inactive during the periods when it could detect a transmitted signal. It also has a second and major advantage that it can be implemented simply with only digital electronics. 2 Multiplexing Techniques Techniques used to separate the directions of transmission can often be adapted to separate different channels transmitted in the same direction.

And M. L. Honig, “Optimisation of Discrete Multitone to Maintain Spectrum Compatibility With Other Transmission Systems on Twisted Copper Pairs,” IEEE J. Selected Areas in Communications, Vol. 13, No. 9, December 1995, pp. 1558–1563. , “Planning the Irish Rural Network,” International Conf. on Rural Telecommunications, May 1988, pp. 114–119. , A. Sticca, and G. , pp. 47–51. Gildenhuys, B. J. , “The Design of an N*64k Data Transmission System Based on Multiple Parallel ISDN U-Interfaces,” COMSIG’92, pp.

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Access Networks: Technology and V5 Interfacing by Alex Gillespie

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