A Novel Concatenated Coding Scheme: RS-SC-LDPC Codes

2020 ◽  
Vol 24 (10) ◽  
pp. 2092-2095
Author(s):  
Jie Qiu ◽  
Li Chen ◽  
Shiqiu Liu
Keyword(s):  
Ldpc Codes ◽  
Concatenated Coding ◽  
Coding Scheme

scholarly journals An overview of channel coding for 5G NR cellular communications

2019 ◽  
Vol 8 ◽  
Author(s):  
Jung Hyun Bae ◽  
Ahmed Abotabl ◽  
Hsien-Ping Lin ◽  
Kee-Bong Song ◽  
Jungwon Lee
Keyword(s):  
Channel Coding ◽  
Ldpc Codes ◽  
Low Latency ◽  
Polar Codes ◽  
Coding Scheme ◽  
Coding Schemes ◽  
Successive Cancellation ◽  
New Radio ◽  
Key Characteristics ◽  
User Data

AbstractA 5G new radio cellular system is characterized by three main usage scenarios of enhanced mobile broadband (eMBB), ultra-reliable and low latency communications (URLLC), and massive machine type communications, which require improved throughput, latency, and reliability compared with a 4G system. This overview paper discusses key characteristics of 5G channel coding schemes which are mainly designed for the eMBB scenario as well as for partial support of the URLLC scenario focusing on low latency. Two capacity-achieving channel coding schemes of low-density parity-check (LDPC) codes and polar codes have been adopted for 5G where the former is for user data and the latter is for control information. As a coding scheme for data, 5G LDPC codes are designed to support high throughput, a variable code rate and length and hybrid automatic repeat request in addition to good error correcting capability. 5G polar codes, as a coding scheme for control, are designed to perform well with short block length while addressing a latency issue of successive cancellation decoding.

A Concatenate Code for Error Correcting Code in Bit Pattern Media Recoding System

2013 ◽  
Vol 834-836 ◽  
pp. 962-967 ◽  
Author(s):  
Sekson Timakul ◽  
Santi Koonkarnkhai ◽  
Piya Kovintavewat ◽  
Somsak Choomchuay
Keyword(s):  
Error Control ◽  
Error Correcting Code ◽  
Ldpc Code ◽  
Areal Density ◽  
Conventional Technique ◽  
Concatenated Coding ◽  
Error Control Coding ◽  
Outer Code ◽  
Rs Codes ◽  
Coding Scheme

Bit Pattern Media Recording (BPMR) is the modern HDD recording technique which can overcome the constraint of conventional technique by offering tremendous areal density. However, narrow track of BPMR can cause noise generating from inter-track interference (ITI) and In. inter-symbol interference (ISI). One traditional technique used to improve BER of the system is the introducing of error control coding. In this paper, we investigate concatenate code applied to BPMR. We proposed inner code with low-density parity-check (LDPC) and Reed-Solomon (RS) codes as outer code. The obtained simulation results confirmed to us that the concatenated coding scheme yielded better performance compared with the single LDPC code deployment.

scholarly journals Concatenated Coding for GNSS Signals in Urban Environments

2020 ◽  
Vol 10 (18) ◽  
pp. 6397
Author(s):  
Jing Ke ◽  
Xiaochun Lu ◽  
Xue Wang ◽  
Xiaofei Chen ◽  
Sheng Tang
Keyword(s):  
Error Correction ◽  
Additive White Gaussian Noise ◽  
Ldpc Codes ◽  
Ldpc Code ◽  
Satellite System ◽  
Urban Environments ◽  
Shadow Fading ◽  
Concatenated Coding ◽  
Concatenated Code ◽  
Global Navigation Satellite

This work investigated concatenated coding schemes for Global Navigation Satellite System (GNSS) signals in order to increase their error correction capability in urban environments. In particular, a serial concatenated code that combines an outer Reed–Solomon (RS) code with an inner low-density parity-check (LDPC) code was designed, and the performance was investigated over the land mobile satellite (LMS) channel for characterizing multipath and shadow fading in urban environments. The performance of the proposed concatenated coding scheme was compared to that of a B-CNAV1 message, in which two interleaved 64-ary LDPC codes were employed. The simulation results demonstrate that the proposed concatenated code can obtain a similar error correction performance to the two interleaved 64-ary LDPC codes in both the additive white Gaussian noise (AWGN) and LMS channels at a lower complexity level.

Concatenated coding scheme with variable coding gain

1993 ◽  
Vol 76 (3) ◽  
pp. 91-104
Author(s):  
Toshiharu Kojima ◽  
Akinori Fujimura ◽  
Makoto Miyake ◽  
Tadashi Fujino ◽  
Hideo Yoshida ◽  
...  
Keyword(s):  
Coding Gain ◽  
Concatenated Coding ◽  
Coding Scheme
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