use J2ME examples show ALERT

The algorith divides rows in to four equal groups. The rows are then used to from a distance graph which is then transformed into a matrix. girth of eight is maintained by avoiding six-cycles in the graph construction

jake接收机的MATLAB的实现程序， 这个程序主要实现JAKE接受机-the programme of jake receiver with matlab, be completed with jake receiver

j2me开发的Nokia手机游戏坦克大战，安装wtk和nokia模拟器就可以运行-J2ME development of the Nokia cell phone game physics, the installation of wtk and nokia can run on the simulator

引入PEG（Progressive-edge-growth）算法来构造适合线性时间编码的LDPC校验矩阵，译码时采用简化最小和Min-Sum译码算法实现简化译码．仿真结果表明，该方法能够构造适合LDPC码的线性时间编码的下三角校验矩阵日，并且用此方法构造的LDPC码性能非常接近原来PEG算法构造的LDPC码．同时通过采用最小和Min-Sum算法降低译码复杂度．-The introduction of PEG (Progressive-edge-growth) algorithm to construct suitable for linear time encoding of LDPC check matrix, decoding simplified when the smallest and the Min-Sum decoding algorithm decoding simplified. Simulation results show that this method can construct LDPC codes suitable for linear time encoding on lower triangular calibration matrix, and constructed using this method the performance of LDPC code is very close to the original PEG algorithm constructed LDPC codes. At the same time through the use of the smallest and the Min-Sum decoding algorithm to reduce complexity.

简单的聊天程序，初学者可以看看，高手勿进！-simple chat program, beginners can see, not masters!

嵌入式linux的web服务器，可以运行于arm、x86平台，用c语言来写的，调用了libcgi库来实现，主要功能就是实现一个学生成绩管理系统，可以注册、登录、录入成绩、删除成绩，查询成绩、退出等功能，数据都是存放在一个linux下的嵌入式数据库sqlite中的。-Embedded linux of web servers, can run in the arm, x86 platform, use c language to write, call the library to libcgi realize, the main feature is the realization of a student achievement management system that can register, login, recording results, delete results, query results from the other functions, the data are stored in a database embedded under linux in sqlite.

认知无线电系统（CRS）是一种能够感知其运行环境和地理环境的无线电系统

H.264 over IP. Useful document for H.264 over IP. Published by IEEE.

一个网络ip电话的实现我也是从其他的地方下的 不好意思-a telephone network ip I also realize from other places under the sorry

同步套接字Socket通讯，主要通过TCP/IP进行通讯-Synchronous Socket Socket Communications