In past decades there has been a growing interest in discussion and study of using
underwater acoustic channel as the physical layer for communication systems, ranging from …

Low-density parity-check (LDPC) codes are commonly used in communication systems to
improve the system performance, but LDPC codes takes too long for decoding, making …

Many communication systems today encounter the problem of data transmission over a
channel with intersymbol interference (ISI). The purpose of this paper is to develop a low …

Acoustic underwater communication is a challenging task. For a reliable transmission, not
only good channel estimation and equalization, but also strong error correcting codes are …

Aiming at the analysis of the underwater acoustic channel such as complex and
changeable, strong multi-path and large fluctuation interference, this article establishes an …

针对水声信道复杂多变, 强多途和大起伏干扰等特点, 本文建立了以极化码作为信道编码方案的
水声通信系统, 以提高水声数据传输的可靠性. 针对声速为常数的均匀介质信道(Invariable …

In this paper, we present an acoustic modem hardware design through the use of a low
power, high performance digital signal processor (DSP). The modem uses either MFSK or …

In recent years, underwater communication (UWC) systems have been attractive in the
development of civilian and military applications. However, there are many challenging …

The underwater acoustic communication system has a number of restrictions to DSP core
because of the bad underwater environment. In view of this situation, we have designed a …

Channel coding is an essential requirement for digital communication systems, particularly
for underwater acoustic channels, to perform accurately and reliably in the presence of …