Title :
Spectrally Efficient Parallel PHY for 100GbE MAN and WAN [Applications & Practice]
Author_Institution :
OpVista Inc, Milpitas
fDate :
12/1/2007 12:00:00 AM
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;
Journal_Title :
Communications Magazine, IEEE
DOI :
10.1109/MCOM.2007.4395384
