High-Speed Adaptive Turbo Decoding Algorithm and Its Implementation

2006 ◽  
Author(s):  
Duk Choi ◽  
Jin Jeong ◽  
Min Kim ◽  
Ji Jung
Keyword(s):  
High Speed ◽  
Turbo Decoding ◽  
Decoding Algorithm

FPGA Implementation of High-Speed Memory Efficient Quasi-Cyclic LDPC Decoder

2013 ◽  
Vol 380-384 ◽  
pp. 3328-3331
Author(s):  
Jian Bing Han ◽  
Chen He ◽  
Ran Zhen
Keyword(s):  
High Speed ◽  
Optimization Design ◽  
Fpga Implementation ◽  
Turbo Decoding ◽  
Decoding Algorithm ◽  
Frame Size ◽  
Ldpc Decoder ◽  
Code Structure ◽  
Structure Algorithm ◽  
Memory Efficient

This paper introduces a new kind of decoder structure for FPGA implementation of high-speed memory efficient quasi-cyclic LDPC (QC-LDPC) decoder. The code structure, algorithm and hardware structure all adopt optimization design. The decoder adopts modified Turbo decoding algorithm and achieves a decoding throughput of 223 Mbps and frame size of 3,200 bits. The Xilinx Virtex-4 chip used by the decoder only takes up 71 KB memory and makes it exceeds other decoders in aspects of throughput and memory for FPGA implementation.

Turbo decoding algorithm based on linear approximation of correction function

2013 ◽  
Vol 32 (8) ◽  
pp. 2113-2115
Author(s):  
Zheng LI ◽  
Chun-lin SONG ◽  
Yun-jie ZHAO ◽  
Zhu-jia WU
Keyword(s):  
Linear Approximation ◽  
Correction Function ◽  
Turbo Decoding ◽  
Decoding Algorithm

scholarly journals High-Speed Decoding Algorithm of Data Codeword in Two-Dimensional PDF417 Bar Code

2014 ◽  
Vol 12 (2) ◽  
pp. 285-293
Author(s):  
Young-Jung Kim ◽  
Young-Min Cho ◽  
Jong-Yun Lee
Keyword(s):  
High Speed ◽  
Two Dimensional ◽  
Decoding Algorithm ◽  
Bar Code

Adaptive Iterative Turbo Decoding Algorithm

2006 ◽  
Author(s):  
Jian Gu ◽  
Yi Zhang ◽  
Dacheng Yang ◽  
Zhen Liu
Keyword(s):  
Turbo Decoding ◽  
Decoding Algorithm

scholarly journals Cooperative Signaling with Soft Information Combining

2010 ◽  
Vol 2010 ◽  
pp. 1-5 ◽  
Author(s):  
Rui Lin ◽  
Philippa A. Martin ◽  
Desmond P. Taylor
Keyword(s):  
Cooperative Communication ◽  
Communication System ◽  
Turbo Code ◽  
Soft Information ◽  
Turbo Decoding ◽  
Decoding Algorithm ◽  
Decode And Forward ◽  
Information Combining ◽  
Cooperative Signaling

We propose a Decode-and-Forward (DF) scheme using distributed Turbo code (DTC) for a three-node (source, relay, and destination) wireless cooperative communication system. The relay decodes, then interleaves, and reencodes the decoded data. It then forwards the reencoded packet and its instantaneous receive SNR to the destination. The performances using both ideal and quantized SNR are studied. The destination uses a modified metric within a Turbo decoding algorithm to scale the soft information calculated for the relay code. The proposed scheme is simple to implement and performs well.

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