IEEE Journal on Selected Areas in Communications - Special issue on realizing GBPS wireless personal area networks
ICC'09 Proceedings of the 2009 IEEE international conference on Communications
IEEE Journal on Selected Areas in Communications - Special issue on next-generation broadband optical access network technologies
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An investigation into the sensitivity performance of both a PPM and an OOK optical wireless communication system has been carried out in the presence of both ambient noise and multipath dispersion. It is 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. Both systems operate at 10 Mb/s and a wavelength of 850 nm. In a line-of-sight configuration, PPM offers an 8.77 dB sensitivity improvement over a comparable OOK system. In a semi-diffuse system impaired by multipath dispersion, the sensitivity improvement is reduced to 7.13 dB. When corrupted by ambient noise, the improvement was found to be 8.8 dB, which is slightly more