3
Channel Modelling
To design, implement and operate efficient optical communication systems, it is imperative that the characteristics of the channel are well understood. Characterization of a communication channel is performed by its channel impulse response, which is then used to analyse and combat the effects of channel distortions. A considerable amount of work has been published on the channel characterization, covering both experimental measurement and computer modelling of indoor and outdoor systems. The power penalties directly associated with the channel may be separated into two factors, these being optical path loss and multipath dispersion. Two types of configurations are considered in an optical wireless channel as outlined in ...
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