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QC_codes
Construct the short length of QC LDPC codes without girth 4 and girth 6(The Program to construct the short length of QC LDPC codes without girth 4 and girth 6
Copyright (C) Yang XIAO, Jun FAN, BJTU, July 26, 2007, E-Mail: yxiao@bjtu.edu.cn.
This program presents an approach [1] for constructing the short length of LDPC codes with girth 8. First, we design 3 submatrices with different shifting functions given by our schemes, then combine them into a matrix according to our approach, finally, expand the matrix into a desired parity-check matrix using identity matrices and cyclic shift matrices of the identity matrices.
The simulation results in AWGN channels show that the codes which can be obtained by the generator matrix derived from this check matrix for encoding the random information bits are as good as random LDPC codes [1].
Ref:
[1] J. Fan, Y. Xiao, “A design of LDPC codes with large girth based on the sub-matrix shifting”, IET International Conference on Wireless Mobile and Multimedia Networks Proceedings (ICWMMN 2006), (CP525), p. )
- 2009-05-28 16:00:14下载
- 积分：1
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HW
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- 2011-03-05 20:18:34下载
- 积分：1
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TSP
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- 2011-04-05 21:32:28下载
- 积分：1
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dan
Matlab的Optimization软件包，虽然能很好地解决线性规划问题，但对于无解和有无穷个解地情况，结果不能让人满意，本人编了几个函数用于打印单纯形表。(Matlab Optimization package, Although able to solve linear programming problems, but no solution and a solution to the endless, the results are not satisfying. I compiled several functions for printing simplex table.)
- 2007-01-07 19:10:43下载
- 积分：1
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R_N_U
原理：乘同余法产生随机数来生成均匀分布、瑞利分布、正态分布，压缩包包括3个分布的Matlab源代码(Principle: multiplicative congruential method to generate random numbers to generate uniformly distributed ，Rayleigh distribution and normal distribution.This package includes three distribution of Matlab source code.)
- 2013-11-02 14:24:01下载
- 积分：1
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comserial
here is the code for serial communications
- 2010-07-10 04:20:44下载
- 积分：1
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calculangle
fonction pour calculer angle
- 2009-10-02 18:02:09下载
- 积分：1
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Linearized model of quadrotor about a 5 degree roll angle.
- 2011-05-31 06:03:24下载
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AuditoryToolboxTechReport
Toolbox with important functions for audio signal processing.
- 2011-06-14 03:35:27下载
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[RES]CambridgePIELTSP6
fft1- chuong trinh bien doi trong matlab
- 2012-08-30 11:36:17下载
- 积分：1
