bch_encode

D2D通信实现资源分配算法的有关代码，用于提高下一代蜂窝网络中的频谱利用率的解决方案是设备到设备D2D(Device to Device）通信。(D2D communication implements code related to resource allocation algorithms. The solution for improving spectrum utilization in next generation cellular networks is device-to-device D2D (device-to-device) communication.)

LDPC码不同译码算法对比。码长512，码率1/2.(LDPC code decoding algorithm comparison. Code length of 512, a rate 1/2.)

说明：  自适应滤波器作为一种现代滤波器，在通信领域有着广泛的应用. 阐述了LMS以及RLS自适应滤波器的相关原理及其在通信系统去噪中的应用，并用MATLAB对自适应滤波器的去噪结果进行了相应的仿真，仿真结果直观地体现了自适应滤波器的去噪性能。 本文对自适应滤波器系统进行剖析，基于QPSK调制后的信号，并对该信号加工成为不同信噪比如SNR=0Db、SNR=5dB、SNR=10dB的信号，进行了两种分别基于LMS自适应滤波和RLS自适应滤波的操作。并对添加了有色高频噪声等加噪处理来模拟通信过程中的实际应用环境，测试所设计的低通滤波器对于噪声信号的滤波性能，并对结果进行分析总结。(As a modern filter, adaptive filter has a wide range of applications in the field of communication. This paper expounds the relevant principles of LMS and RLS adaptive filter and their applications in the de-noising of communication system, and simulates the de-noising results of adaptive filter with MATLAB. The simulation results directly reflect the de-noising performance of adaptive filter. In this paper, the adaptive filter system is analyzed, based on the QPSK modulated signal, and the signal is processed into different signal-to-noise, such as SNR = 0dB, SNR = 5dB, SNR = 10dB signal. Two kinds of operation are carried out based on LMS adaptive filtering and RLS adaptive filtering respectively. In order to simulate the practical application environment in the communication process, we add colored high-frequency noise to test the filtering performance of the designed low-pass filter for noise signal, and analyze and summarize the results.)

说明：  横河CS3000培训讲义 DCS经典介绍和操作(Yokogawa CS3000 classical training, introduction and operation of DCS notes)

天线相关性对MIMO系统BER性能的影响分析(Antenna MIMO system BER performance analysis)

无线定位技术仿真模拟，加有高斯白噪声干扰，能精确到1米之内。(Wireless location technology simulation, plus Gauss white noise interference, can be accurate to 1 meters.)

水声OFDM通信系统基于导频的信道估计算法研究(Pilot based channel estimation algorithm for underwater acoustic OFDM communication system)

有客户端的聊天软件，可实现网络通讯，对于了解网络编程有帮助(A client chat software, network communications, network programming help for understanding)

MIMO-OFDM基于卡拉曼滤波的信道估计算法，附带多普勒信道建模和算法程序(MIMO-OFDM Karaman filtering based channel estimation algorithm, incidental the Doppler channel modeling and algorithm)

一个很小和天线计算程序，我觉得非常实用，发上来与大家分享(A very small and the antenna calculation program, I think very useful, the table to share with you)