Direct Detect Modulations of High Speed Indoor Diffused Infrared Wireless Transmission
Date Issued
1994
Date
1994
Author(s)
DOI
20060927122756539202
Abstract
High speed indoor diffused infrared wireless
transmission is greatly needed for data and multimedia
applications. We investigated the error rate
performance of OOK (on off keying), NRBI (nonreturn-
to zero with bit insersion), M-ary PPM (pulse
position modulation), and two novel coded direct
detect modulations, DCGPPM (differentially coded
and guarded P P M ) and MRLC (modified run length
code), by adopting representative channel modeling
from measurements and simulations. Practical implementation
issues have been further considered.
Fkom our results, we suggest DCGPPM at 10M bps,
4-ary PPM or DCGPPM at 20M bps, OOK or NRBI at 40Mbps, and MRLC at 100M bps, for the base-
band direct detect transmission of indoor wireless opt
i c a l transmission.
Publisher
臺北市:國立臺灣大學電機工程學系
Type
journal article
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