Conformation techniques for direct-sequence spread-spectrum wireless optical systems

In this Letter the effect of using pulse conformation techniques over a DSSS wireless optical system is explored. The performances of both Gaussian and sinusoidal conformation over the spread and code signal are compared. As a pattern of comparison, the side-lobe elimination for adjacent-channel interference reduction, the process gain, and the BER versus signal to narrow-band interference ratio have been considered. Simulation results and prototype testing are given so as to illustrate the results obtained with this technique. © 2002 Wiley Periodicals, Inc. Microwave Opt Technol Lett 34: 360–364, 2002; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.10462