TY - JOUR
T1 - Error Rate Performance Analysis of M-ary Coherent FSO Communications with Spatial Diversity in Strong Atmospheric Turbulence
AU - Kang, Jinkyu
AU - Jeong, Seongah
AU - Lee, Hoojin
N1 - Publisher Copyright:
© 2022 The Institute of Electronics, Information and Communication Engineers.
PY - 2022/5
Y1 - 2022/5
N2 - In this letter, we analyze the error rate performance of Mary coherent free-space optical (FSO) communications under strong atmospheric turbulence. Specifically, we derive the exact error rates for M-ary phase shift keying (MPSK) and M-ary quadrature amplitude modulation (MQAM) based on moment-generating function (MGF) with negative exponential distributed turbulence, where maximum ratio combining (MRC) receiver is adopted to mitigate the turbulence effects. Additionally, by evaluating the asymptotic error rate in high signal-to-noise ratio (SNR) regime, it is possible to effectively investigate and predict the error rate performance for various system configurations. The accuracy and the effectiveness of our theoretical analyses are verified via numerical results.
AB - In this letter, we analyze the error rate performance of Mary coherent free-space optical (FSO) communications under strong atmospheric turbulence. Specifically, we derive the exact error rates for M-ary phase shift keying (MPSK) and M-ary quadrature amplitude modulation (MQAM) based on moment-generating function (MGF) with negative exponential distributed turbulence, where maximum ratio combining (MRC) receiver is adopted to mitigate the turbulence effects. Additionally, by evaluating the asymptotic error rate in high signal-to-noise ratio (SNR) regime, it is possible to effectively investigate and predict the error rate performance for various system configurations. The accuracy and the effectiveness of our theoretical analyses are verified via numerical results.
KW - error rate performance
KW - free-space optical (FSO)
KW - strong atmospheric turbulence
UR - http://www.scopus.com/inward/record.url?scp=85194471448&partnerID=8YFLogxK
U2 - 10.1587/transfun.2021EAL2062
DO - 10.1587/transfun.2021EAL2062
M3 - Article
AN - SCOPUS:85194471448
SN - 0916-8508
VL - E105.A
SP - 897
EP - 900
JO - IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences
JF - IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences
IS - 5
ER -