Spectrally Efficient Parallel PHY for 100GbE MAN and WAN [Applications & Practice]

Author

Way, Winston I.

Author_Institution

OpVista Inc, Milpitas

Volume

45

Issue

12

fYear

2007

fDate

12/1/2007 12:00:00 AM

Firstpage

20

Lastpage

23

Abstract

The serial 100 GbE PHY (physical layer) based on advanced modulation techniques such as differential quadrature-phase- shifted-keying (DQPSK.) have been experimentally demonstrated by laboratories worldwide. This interface is envisioned for future ultra-long-haul systems. In this article, we present an alternative approach to 100 GbE transmission in a metropolitan-area network (MAN) and a wide-area network (WAN), which is based on parallel PHY. We discuss the advantages of this approach in comparison with the conventional serial PHY from both technical and economic points of view.

Keywords

metropolitan area networks; phase shift keying; wide area networks; DQPSK; MAN; WAN; advanced modulation; differential quadrature-phase-shifted-keying; metropolitan-area network; parallel physical layer; ultra-long-haul systems; wide-area network; Cables; LAN interconnection; Optical fibers; Payloads; Physical layer; Proposals; Switches; Transponders; Wavelength division multiplexing; Wide area networks;

fLanguage

English

Journal_Title

Communications Magazine, IEEE

Publisher

ieee

ISSN

0163-6804

Type

jour

DOI

10.1109/MCOM.2007.4395384

Filename

4395384