TY - JOUR
T1 - Quantized Feedback-Based Differential Signaling for Free-Space Optical Communication System
AU - Bhatnagar, Manav
AU - Ghassemlooy, Zabih
AU - Zvanovec, Stanislav
AU - Khalighi, Mohammad-Ali
AU - Mansour Abadi, Mojtaba
PY - 2016/12
Y1 - 2016/12
N2 - We propose a quantized feedback-based differential signaling scheme for 2 × 1 free space optical (FSO) multiple-input single-output communication systems. The analytical bit error rate (BER) for the proposed differential signaling scheme is derived and compared with the existing differential signaling scheme for FSO systems. The asymptotic BER of the proposed scheme is also determined and it is shown by using the asymptotic BER expression that the proposed scheme achieves full spatial diversity of two. Moreover, the effect of the feedback error on the performance of the proposed scheme is studied and it is demonstrated by simulation-based and analytical results that the proposed scheme significantly outperforms a previously proposed differential signaling scheme in terms of turbulence fades reduction for tolerable feedback errors.
AB - We propose a quantized feedback-based differential signaling scheme for 2 × 1 free space optical (FSO) multiple-input single-output communication systems. The analytical bit error rate (BER) for the proposed differential signaling scheme is derived and compared with the existing differential signaling scheme for FSO systems. The asymptotic BER of the proposed scheme is also determined and it is shown by using the asymptotic BER expression that the proposed scheme achieves full spatial diversity of two. Moreover, the effect of the feedback error on the performance of the proposed scheme is studied and it is demonstrated by simulation-based and analytical results that the proposed scheme significantly outperforms a previously proposed differential signaling scheme in terms of turbulence fades reduction for tolerable feedback errors.
KW - multiple beam systems
KW - Atmospheric turbulence
KW - differential signaling
KW - free space optical links
KW - Gamma-Gamma fading
U2 - 10.1109/TCOMM.2016.2614817
DO - 10.1109/TCOMM.2016.2614817
M3 - Article
SN - 0090-6778
VL - 64
SP - 5176
EP - 5188
JO - IEEE Transactions on Communications
JF - IEEE Transactions on Communications
IS - 12
ER -