No self-introduction
Loading
Profile
Follow
codes (4)
Simulation of fountain codes program
4.0
John Byers and Michael Luby first put forward the concept of digital fountain in 1998. It is an ideal solution for the application characteristics of large-scale data distribution and reliable broadcasting, but there was no practical design scheme of digital fountain code at that time. In 2002, Luby proposed the first practical digital fountain code, LT code 1. After that, shokrollahi proposed a better performance Raptor code 2, which achieved almost ideal encoding and decoding performance. With the improvement of academic theory, digital fountain code has been paid more and more attention by the industry and has been applied more and more
jeffyan 0 0
1
The parity-check matrix h into generator matrix g
4.0
This is on the LDPC parity-check matrix h into a generator matrix g process! In the process of channel coding, coding is directly related to the effectiveness of code quality through this process, the reader can understand the parity-check matrix h into a generator matrix g detailed procedures is beneficial to understanding the coding process, communication system master
jeffyan 1 0
1
About RA (repeat accumulate code) and a method of
5.0
Repeat Accumulate (RA) code is a new error correcting code, not only has the Turbo code, an LDPC code can be the same advantages, and its encoding and decoding algorithms and the code length is linear. This book introduces the principle of RA codec codes and its application in the communication system, is divided into nine chapters, including background and current situation of domestic and foreign research and development of RA codes, RA Decoding Principles, RA simplified code decoding algorithm , RA code optimization method, RA code Gauss / delete channel mixing performance analysis and optimization design, RA code in bit interleaved coded modulation system application, RA codes in the remote optical fiber communication systems and hybrid ARQ techniques content and other aspects.
jeffyan 4 0
1
Irregular RA codes
no vote
The BP decoding algorithm of irregular repeat accumulation code has superior performance close to Shannon limit, but it has high complexity. In order to reduce the complexity, the minimum sum algorithm of IRA code and the curve broken line algorithm are proposed. The minimum sum algorithm is simple and easy to implement, but the decoding performance is greatly reduced. The curve broken line algorithm makes a good tradeoff between the complexity and performance of the cyclic decoding algorithm
jeffyan 0 0
1
No more~
Follows0
Fans0