We synthesize the underwater communication channel characteristics, the Poisson random process of photon emission and detection, and use Monte Carlo simulation to establish a long-distance weak link underwater wireless optical communication (WOC) model. The effects of demodulation threshold, signal and noise optical power on system performance are studied, and the calculation formula of system bit error rate (BER) is derived. The experimental results show that the simulation results of the established system model are basically consistent with the experimental data. When the number of photons received in the bit interval is 25, the system BER is 1.05×10-4 .
We built an underwater photon-counting wireless optical communication (WOC) system, proposed and verified a video transmission protocol for high bit error rate (BER) environment. At the transmitting terminal, each pixel of the video frame has a sequence number indicating its position, and the sequence number information and the pixel information are encapsulated into independent data frames. After the receiving terminal distinguishes between the sequence number frame and the pixel frame according to the flag bit, the pixel and the sequence number are correspondingly placed into the storage unit. The experimental results show that when the BER is more than 0.6, the contour of the video frame can still be recovered, which effectively solves the problem of pixel dislocation of video frame caused by bit error.
Access to the requested content is limited to institutions that have purchased or subscribe to SPIE eBooks.
You are receiving this notice because your organization may not have SPIE eBooks access.*
*Shibboleth/Open Athens users─please
sign in
to access your institution's subscriptions.
To obtain this item, you may purchase the complete book in print or electronic format on
SPIE.org.
INSTITUTIONAL Select your institution to access the SPIE Digital Library.
PERSONAL Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.