Low decoding latency and complexity are two important requirements of channel codes used in many applications, like machine-to-machine communications. In this paper, we show how these requirements can be fulfilled by using some special quasi-cyclic low-density parity-check block codes and spatially coupled low-density parity-check convolutional codes that we denote as compact. They are defined by parity-check matrices designed according to a recent approach based on sequentially multiplied columns. This method allows obtaining codes with girth up to 12. Many numerical examples of practical codes are provided.
Compact QC-LDPC Block and SC-LDPC Convolutional Codes for Low-Latency Communications / Battaglioni, Massimo; Tasdighi, Alireza; Baldi, Marco; Tadayon, Mohammad H.; Chiaraluce, Franco. - ELETTRONICO. - (2018). (Intervento presentato al convegno IEEE 29th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications (PIMRC 2018) tenutosi a Bologna, Italy nel 9-12 September 2018).
Compact QC-LDPC Block and SC-LDPC Convolutional Codes for Low-Latency Communications
Massimo Battaglioni
;Marco Baldi;Franco Chiaraluce
2018-01-01
Abstract
Low decoding latency and complexity are two important requirements of channel codes used in many applications, like machine-to-machine communications. In this paper, we show how these requirements can be fulfilled by using some special quasi-cyclic low-density parity-check block codes and spatially coupled low-density parity-check convolutional codes that we denote as compact. They are defined by parity-check matrices designed according to a recent approach based on sequentially multiplied columns. This method allows obtaining codes with girth up to 12. Many numerical examples of practical codes are provided.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
