Rank: 282 based on 213 downloads (last 30 days) and 18 files submitted
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Yang Xiao

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Company/University
Beijing Jiaotong University

Personal Profile:

I received B.S. degree from Beijing Post and Telecommunication College in 1983, and M. S. degree in 1989 and Ph.D. degree in 1991 from Beijing Jiaotong University, China. Since 1991, I have been with Beijing Jiaotong University to be lecturer, associate professor and professor.
My main research interests include: Space-Time Signal Processing, Communication Signal Processing and Systems, Multidimensional (M-D) Signal Processing and Systems.

Professional Interests:
Communication, Signal Processing

 

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25 Jan 2012 inverse 2-D Laplace transform The program can get the inverse 2-D Laplace transform of a function in 2-D s- domain. Author: Yang Xiao inverse 2d laplace tr..., 2d continuous systems, 2d continuous signal ..., 2d system model 15 0
04 Nov 2010 Screenshot simulate fast Tanner LDPC codec with quasi-circular generator matrices The program can simulate fast Tanner LDPC codec with quasi-circular generator matrices. Author: Yang Xiao ldpc, channel coding, communications 22 0
10 Aug 2010 Screenshot Simulating 2*2 MIMO-LDPC Base-Band Systems This program can simulate 2*2 MIMO-LDPC base-band systems, refer my MIMO book. Author: Yang Xiao ldpc, channel coding, mimo, 80216e 52 1
  • 5.0
5.0 | 1 rating
29 Jun 2010 Screenshot The parity check matrix of IEEE 802.16e LDPC with the size 2256*4512 The program can produce the parity check matrix of IEEE 802.16e LDPC with the size 2256*4512. Author: Yang Xiao ldpc, channel coding, ieeee 80216e 26 0
22 Jun 2010 Shortten DVB-S2 LDPC 64800 code into 8100 The program can produce the parity check matrix of DVB-S2 LDPC 64800 with short length code of 8100. Author: Yang Xiao ldpc, channel coding, dvbs2 17 2
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29 Jun 2010 Shortten DVB-S2 LDPC 64800 code into 8100 The program can produce the parity check matrix of DVB-S2 LDPC 64800 with short length code of 8100. Author: Yang Xiao

To master the technique for good short LDPC codes supporting fast encoding algorithm, please read my following published book, which provided many examples.
[1] Y. Xiao, Turbo and LDPC Codecs and their Applications, Press of Posts and Telecommunications, Beijing, 2010.

29 Jun 2010 The problems of LDPC codes in CCSDS 131.0-P-1.1 This program provided the parity check matrix of LDPC in CCSDS 131.0-P-1.1. Author: Yang Xiao

In my following published book, I derived the algorithm of generator matrices of CCSDS LDPC, classical approach is invalid for the problem.
[1] Y. Xiao, Turbo and LDPC Codecs and their Applications, Press of Posts and Telecommunications, Beijing, 2010.

27 Jun 2010 Shortten DVB-S2 LDPC 64800 code into 8100 The program can produce the parity check matrix of DVB-S2 LDPC 64800 with short length code of 8100. Author: Yang Xiao

Two LDPC codes of DVB-s2 are too long, which lead to huge implementation complexity. Our published papers try to shorten them and keep their original good BER. This program shows that it is possible to get good short codes from the DVB-s2 LDPC.
23 Apr 2010 Parity Check Matrices of DVBS2 codes This program can produce the Parity Check Matrices of DVBS2 codes. Author: Yang Xiao

Some persons want get shorten LDPC codes from DVB-s2 codes. There is no problem, pls carefully read Ref.[1], in which, we have provided solution for the problem, not difficult.
            Yang Xiao, BJTU, 4-23
12 Mar 2010 The problems of LDPC codes in CCSDS 131.0-P-1.1 This program provided the parity check matrix of LDPC in CCSDS 131.0-P-1.1. Author: Yang Xiao

1. To solve the problem of H and G needs good technique, I have solved the problem after the publication of the program one week.
2. Please carefully study the reference I provide, then you may find a way to solve the problem of H and G.
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23 Jun 2011 Simulating 2*2 MIMO-LDPC Base-Band Systems This program can simulate 2*2 MIMO-LDPC base-band systems, refer my MIMO book. Author: Yang Xiao Puripong
23 Jun 2011 Simulating 2*2 MIMO-LDPC Base-Band Systems This program can simulate 2*2 MIMO-LDPC base-band systems, refer my MIMO book. Author: Yang Xiao Puripong

Thank you for sharing this file
Have you already done about 4*4 MIMO-LDPC ?

I have searched for your book
How to buy it ?
01 Feb 2011 Alternative good LDPC codes for DVB-S2 The program can produce the parity check matrix of DVB-S2 with the size 5400*2700. Author: Yang Xiao sudheer

give the matlab codes for multiband rectangular patch antenna about its radiation pattern,scatering matrix
14 Jul 2010 The problems of LDPC codes in CCSDS 131.0-P-1.1 This program provided the parity check matrix of LDPC in CCSDS 131.0-P-1.1. Author: Yang Xiao Jon

Please keep in mind that the CCSDS document Xiao references is only a draft CCSDS recommendation, not the final recommendation. A few changes have been made since then. In the meantime, the G and H for all 10 of the LDPC codes have been verified.

The CCSDS specification gives the algorithm for generating G and H, but it does take some work to follow the directions.
For those interested in using or simulating the CCSDS LDPC codes, I am working to make full G and H files publicly available, so that people don't have to struggle with the standards document to derive these (large) matrices. In the meantime, if you contact me I can help you with access to them. In addition, full MATLAB encoder/decoder software is available (a C version is available as well)-- this code takes advantage of the circulant-based nature fo the code, so it is a bit more efficient than generic LDPC encoder/decoder that works with arbitrary parity matrices. This code is not public, but it can be licensed royalty free.
29 Jun 2010 Shortten DVB-S2 LDPC 64800 code into 8100 The program can produce the parity check matrix of DVB-S2 LDPC 64800 with short length code of 8100. Author: Yang Xiao Xiao, Yang

To master the technique for good short LDPC codes supporting fast encoding algorithm, please read my following published book, which provided many examples.
[1] Y. Xiao, Turbo and LDPC Codecs and their Applications, Press of Posts and Telecommunications, Beijing, 2010.

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ldpc, channel coding, coding theory, information theory, communications
Files Tagged by Yang View all
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25 Jan 2012 inverse 2-D Laplace transform The program can get the inverse 2-D Laplace transform of a function in 2-D s- domain. Author: Yang Xiao inverse 2d laplace tr..., 2d continuous systems, 2d continuous signal ..., 2d system model 15 0
04 Nov 2010 Screenshot simulate fast Tanner LDPC codec with quasi-circular generator matrices The program can simulate fast Tanner LDPC codec with quasi-circular generator matrices. Author: Yang Xiao ldpc, channel coding, communications 22 0
10 Aug 2010 Screenshot Simulating 2*2 MIMO-LDPC Base-Band Systems This program can simulate 2*2 MIMO-LDPC base-band systems, refer my MIMO book. Author: Yang Xiao ldpc, channel coding, mimo, 80216e 52 1
  • 5.0
5.0 | 1 rating
29 Jun 2010 Screenshot The parity check matrix of IEEE 802.16e LDPC with the size 2256*4512 The program can produce the parity check matrix of IEEE 802.16e LDPC with the size 2256*4512. Author: Yang Xiao ldpc, channel coding, ieeee 80216e 26 0
22 Jun 2010 Shortten DVB-S2 LDPC 64800 code into 8100 The program can produce the parity check matrix of DVB-S2 LDPC 64800 with short length code of 8100. Author: Yang Xiao ldpc, channel coding, dvbs2 17 2

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