Abstract
The sensitivity performance of both a Pulse Position Modulation (PPM) and an On-Off Keying (OOK) optical wireless communication system has been carried out in the presence of both ambient noise and multipath dispersion. The optical wireless (OW) channel has been modeled by means of experimental results and the carthesian co-ordinates of locations in a default test room. It is further shown that the sensitivity of a PPM scheme is more affected by multipath dispersion than a similar OOK format. Under the constraint of ambient noise, the findings were opposite.
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