Low-density parity-check convolutional codes applied to packet based communication systems

In this paper, the application of low-density parity-check convolutional codes (LDPC-CCs) to packet based communication systems is studied. By presenting analysis of encoder and decoder design as well as simulation results for such systems, we show that LDPC-CCs are more suited to packet based applications than LDPC block codes (LDPC-BCs). This is due to their ability to operate on arbitrary lengths of data, lower encoder complexity and the performance gain of presetting and termination. Moreover, in this paper, we propose an algorithm for terminating the LDPC-CC encoder from any state to the all-zero state.