It is difficult to improve underwater acoustic communication due to the long delay extension of underwater acoustic channel and serious selective fading in frequency domain. At the same time, there is residual redundancy in the actual source of underwater acoustic communication, which is difficult to be utilized by traditional methods, resulting in a certain broadband waste. In order to improve the reliability of underwater acoustic communication, a joint coding method based on Polar code is proposed in this paper. According to the characteristics of source coding and channel coding, this method uses redundancy in source coding to resist channel errors. In addition, the unequal error protection mechanism is added, which can improve transmission efficiency by adopting the code with good error correction ability for important code streams and adopting the code with poor error correction ability or not for non-important code streams according to the different importance of the output code streams of the source. In this way, a joint encoder responsible for both source compression and channel error protection is realized.
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.