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Proceedings Paper

ASIC-based spectrally efficient modulation for wireless wideband data transmission
Author(s): John M. Liebetreu; Bruce A. Cochran; James J. Crawford; Rene Savalle
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Paper Abstract

Wideband digital data transmissions supporting the 51.82 Mbps (STS-3), 155.52 Mbps (STS-3) and higher data transmission formats are contemplated for future terrestrial point-to-point and point-to multipoint microwave systems as exemplified by the MMDS, LMCS/LMDS and MVDS services, as well as for satellite systems. The traditional approach of using QPSK modulation with powerful error correcting codes will face a significant challenge in overcoming the technical difficulty of supporting the clock/symbol rates required at these data rates using cost effective CMOS processes, the wide bandwidth required for these data rates using QPSK. SiCOM has developed an ASIC chip set, that, in addition to shaped QPSK, will support 8-PSK and 16-QAM modulation formats on in-phase and quadrature channels with transmission rates to 155.52 Mbps (STS-3).

Paper Details

Date Published: 23 January 1998
PDF: 10 pages
Proc. SPIE 3232, Wireless Technologies and Systems: Millimeter-Wave and Optical, (23 January 1998); doi: 10.1117/12.301030
Show Author Affiliations
John M. Liebetreu, SiCOM, Inc. (United States)
Bruce A. Cochran, SiCOM, Inc. (United States)
James J. Crawford, SiCOM, Inc. (United States)
Rene Savalle, SiCOM, Inc. (United States)

Published in SPIE Proceedings Vol. 3232:
Wireless Technologies and Systems: Millimeter-Wave and Optical
Paul Christopher; Leland Langston; G. Stephen Mecherle, Editor(s)

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