third_-octave

matlab写的ldpc编译码仿真，自己可以该参数看误码率，(matlab ldpc encode decode)

说明：  用VHDL语言在CPLD/FPGA上实现浮点运算的方法(in VHDL CPLD/FPGA achieve floating-point computation methods)

ofdm的编码过程，用evm和比特率进行对比(The encoding process of OFDM is compared with EVM and bit rate)

是关于生成QAM 仿真的程序码,可以帮助你用编程的方法完成QAM调制解调系统的仿真(it is something about 16-QAM,it can help you simulink QAM with MATLAB )

建荣蓝牙芯片的相关资料，常用的工具，文档说明(Info Jianrong Bluetooth chip, commonly used tools, documentation)

说明：  使用Simulink(或m语言)仿真卷积编码，并用Viterbi译码的方法进行解码，其中的编码、译码全部是自己编写代码(m语言方式)，不是调用Simulink(或m语言)的已有编码、译码函数。并在加性白高斯噪声信道中，画出比特信噪比与误码率的关系曲线。(Simulink (or M language) is used to simulate convolutional coding, and Viterbi decoding method is used to decode, in which the coding and decoding are all written by themselves (M language mode), rather than calling the existing coding and decoding functions of Simulink (or M language). In the additive white Gaussian noise channel, the relationship curve between bit SNR and BER is drawn.)

说明：  本文主要从自适应调制的算法及实现出发，引入了OFDM子载波分组的概念，详细阐述了五种固定阈值算法和子带BER预估计算法的原理及实现，并在此基础上加入自适应编码，实现自适应调制与编码。(Based on the algorithm and implementation of adaptive modulation, this paper introduces the concept of OFDM subcarrier grouping, elaborates the principle and implementation of five fixed threshold algorithms and subband BER estimation algorithm, and adds adaptive coding to realize adaptive modulation and coding.)

差分空时组码的代码, 编码到译码都很全.(differential space time block code)

this describe the rouring protocol direct diffusion for wireless sensor network

Diameter协议结构原理,Diameter协议在IMS的基本应用 (Diameter descriptor)