Design of segmented CRC‐aided spinal codes for IoT applications. Issue 20 (13th November 2020)

• Record Type: Journal Article
• Authors: Bian, Hongxiu; Liu, Rongke; Kaushik, Aryan; Hu, Yingmeng; Thompson, John S.
• Is Part Of: IET communications. Volume 14:Issue 20(2020)
• Page Start: 3541
• Page End: 3548
• Publication Date: 2020-11-13
• Subjects: error statistics -- channel coding -- cyclic redundancy check codes -- sequential decoding -- Internet of Things -- computer network reliability; poor error detection ability -- short segment CRC bits -- SCA‐spinal codes -- decoding complexity -- transmission delay -- segmented CRC‐aided spinal codes -- IoT applications -- rateless spinal codes -- high throughput performance -- power‐constrained applications -- cyclic redundancy check -- novel hybrid decoding algorithm -- decoder -- decoding process -- error decoding -- targeted symbol transmission strategy -- transmitting redundant symbols -- specific segments strategy -- RSSS strategy -- transmitting symbols -- high signal‐to‐noise ratio regions; Telecommunication systems -- Periodicals; Speech processing systems -- Periodicals; 621.38205
• DOI: 10.1049/iet-com.2019.0907
• Languages: English
• ISSNs: 1751-8628

Abstract

Abstract : 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.