We investigate the impact of fiber chromatic dispersion on theperfor- mance of an externally modulated millimeter-wave fiber-radiosystem incor- porating a broadband radio direct-sequence codedivision multiple access (DS-CDMA) scheme. In particular, weinvestigate the effect of dispersion on DS-CDMA signals with regardto CDMA code rate, center frequency, and modulator chirp. We showthat the spreading of the signal spectrum using DS-CDMA can result insignificant reductions in data amplitude variations normallyexperienced in externally modulated millimeter-wave fiber-radiosystems. We also demonstrate the successful transmission of a 10-Mb/sdata channel over a 39-GHz fiber-radio link employing DS-CDMA andconsisting of 25 km of standard optical fiber and a 1-m radio link.
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