Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7129106 | Optics & Laser Technology | 2018 | 7 Pages |
Abstract
The performance of multiple-input multiple-output wireless optical communication systems that adopt Q-ary pulse position modulation over spatial correlated log-normal fading channel is analyzed in terms of its un-coded bit error rate and ergodic channel capacity. The analysis is based on the Wilkinson's method which approximates the distribution of a sum of correlated log-normal random variables to a log-normal random variable. The analytical and simulation results corroborate the increment of correlation coefficients among sub-channels lead to system performance degradation. Moreover, the receiver diversity has better performance in resistance of spatial correlation caused channel fading.
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Electrical and Electronic Engineering
Authors
Huiqin Wang, Xue Wang, Kibe Lynette, Minghua Cao,