Design of segmented CRC-aided spinal codes for IoT applications

Rateless spinal codes can achieve reliable transmission with high throughput performance, which is required by some power-constrained applications, such as internet of things (IoT). In this study, the cyclic redundancy check (CRC) is divided into segments. We design the segmented CRC-aided (SCA) spi...

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Vydáno v:	IET communications Ročník 14; číslo 20; s. 3541 - 3548
Hlavní autoři:	Bian, Hongxiu, Liu, Rongke, Kaushik, Aryan, Hu, Yingmeng, Thompson, John S
Médium:	Journal Article
Jazyk:	angličtina
Vydáno:	The Institution of Engineering and Technology 15.12.2020
Témata:	channel coding computer network reliability cyclic redundancy check cyclic redundancy check codes decoder decoding complexity decoding process error decoding error statistics high signal‐to‐noise ratio regions high throughput performance Internet of Things IoT applications novel hybrid decoding algorithm poor error detection ability power‐constrained applications rateless spinal codes Research Article RSSS strategy SCA‐spinal codes segmented CRC‐aided spinal codes sequential decoding short segment CRC bits specific segments strategy targeted symbol transmission strategy transmission delay transmitting redundant symbols transmitting symbols channel coding targeted symbol transmission strategy decoding complexity high throughput performance IoT applications high signal-to-noise ratio regions power-constrained applications segmented CRC-aided spinal codes poor error detection ability computer network reliability transmitting redundant symbols error statistics sequential decoding novel hybrid decoding algorithm cyclic redundancy check error decoding decoding process SCA-spinal codes rateless spinal codes decoder specific segments strategy Internet of Things RSSS strategy cyclic redundancy check codes transmitting symbols short segment CRC bits transmission delay
ISSN:	1751-8628, 1751-8636
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Shrnutí:	Rateless spinal codes can achieve reliable transmission with high throughput performance, which is required by some power-constrained applications, such as internet of things (IoT). In this study, the cyclic redundancy check (CRC) is divided into segments. We design the segmented CRC-aided (SCA) spinal codes and propose a novel hybrid decoding algorithm. The decoder can terminate the decoding process earlier when an error decoding is detected in any segment. Moreover, a more targeted symbol transmission strategy after decoding errors occur is provided and we call it as the transmitting redundant symbols for specific segments (RSSS) strategy. The RSSS strategy saves the transmitting symbols by transmitting a variable number of symbols, thus improving the throughput of the system. Furthermore, we design a new tail-biting structure for SCA-spinal codes to compensate for the disadvantage of poor error detection ability for short segment CRC bits. The simulation results show that the proposed SCA-spinal codes can reduce the decoding complexity and improve the throughput of the system. The transmission delay can also be reduced by dividing the information bits and CRC bits into an appropriate number of segments.
ISSN:	1751-8628 1751-8636
DOI:	10.1049/iet-com.2019.0907