Archive > Volume 12 Issue 3 > 2016,12(3):221-225. DOI:10.1007/s11801-016-6054-x CSTR:[cstr] Prev Next
Performance analyses of subcarrier BPSK modulation over M turbulence channels with pointing errors
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Abstract:
An aggregated channel model is achieved by fitting the Weibull distribution, which includes the effects of atmospheric attenuation, M distributed atmospheric turbulence and nonzero boresight pointing errors. With this approximate channel model, the bit error rate (BER) and the ergodic capacity of free-space optical (FSO) communication systems utilizing subcarrier binary phase-shift keying (BPSK) modulation are analyzed, respectively. A closed-form expression of BER is derived by using the generalized Gauss-Lagueree quadrature rule, and the bounds of ergodic capacity are discussed. Monte Carlo simulation is provided to confirm the validity of the BER expressions and the bounds of ergodic capacity.
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