In the photon-starving free space optical communication (FSOC) systems the optical signals
received often exhibit a very low OSNR due to the large transmission loss. Thus the digital …

The free space optical communication (FSOC) signals often exhibit a much larger dynamic
range and much lower OSNR than optical fiber communication signals, due to the large …

In this paper, a symmetric training sequence-based (STSB) carrier frequency offset
estimation (FOE) scheme for coherent free-space optical (CFSO) communication is …

A joint frame and frequency synchronisation algorithm is proposed for Tomlinson-Harashima
precoding-based faster-than-Nyquist (FTN) coherent optical systems. The algorithm is …

We consider a free-space optical (FSO) communication link for packet-based transmissions
over a turbulence fading channel. The modulation format is on-off keying (OOK) and a …

Fast and reliable synchronization in free-space optical (FSO) communications is a crucial
task that has received little attention so far. Since in these applications the data rate is much …

Free-space optical communication (FSOC) systems with variable data-rates can support
different missions with different transmission distances and ensure reliable transmission in …

To alleviate the impact of atmospheric turbulence on receiver carrier recovery in free-space
optical communication, this study introduces a novel frame synchronization and carrier …

In this letter, we apply a nonequalization orthogonal frequency-division multiplexing (NE-
OFDM) technique in optical turbulence channel for coherent free-space optical (FSO) …

A low-complexity joint symbol synchronization and SFO estimation scheme for
asynchronous optical IMDD OFDM systems based on only one training symbol is proposed …