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An Early Termination Scheme for Successive Cancellation List Decoding of Polar Codes
Conference paper

An Early Termination Scheme for Successive Cancellation List Decoding of Polar Codes

Huang-Chang Lee, Yu-Sheng Pao, Cheng-Yi Chi, Hsin-Yu Lee and Yeong-Luh Ueng
ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings, Vol.2020-May, pp.1798-1802
05/2020

Abstract

early termination Polar codes successive cancellation list decoding Software Signal Processing Electrical and Electronic Engineering
In order to minimize the decoding period and the response time for Polar Codes, an early termination (ET) scheme based on additional check points (ACPs) is proposed in this work. For conventional ET schemes based on distributed parity-check (PC) bits, ET can only be triggered when the decoding process reaches the PC bits. The ACPs are selected from the information bits, and extend the feature of the PC bits, where ET can also be triggered at the ACPs, meaning that a more rapid ET is available that does not impact the error-rate performance. With sophisticated method of selecting ACPs based on the channel-independent polarization weight (PW), the proposed ET scheme is able to reduce the response time by about 5

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