Chepstow-keying-orthogonality

delphi开发的基于TCP协议的文件传输程序。包含服务器端和客户端程序，可以互相传送。(delphi development based on the TCP protocol file transfer program. Includes server and client program, you can send each other.)

LDPC码编译码程序，C语言，译码位BP译码算法 code&decode BP(LDPC code&decode BP)

说明：  前已提出的频谱感知方法主要包括匹配滤波器检测、 能量检测、 循环平稳特征检测以及多分辨率频谱感知. 这些方法均为单节点感知方法.然而，在阴影和深度衰落情况下， 单个节点的感知结果并不可靠， 因此， 需要对多个节点的感知结果进行融合，以提高检测可靠性， 即协作感知技术. 文献采用“或” 准则对各个 CR 感知结果进行融合. 文献则提出了基于 D-S 证据理论的协作频谱感知算法，虽然该算法的性能比“或” 准则或“与”准则要好， 但需要存储大量历史信息， 算法的计算复杂度也很高. 文献中分析了采用似然比检测(likelihood ratio test， LRT) 的软判决与采用“与” 准则的硬判决的性能， 结果表明采用软判决的协作感知性能更优(Previously proposed spectrum sensing methods mainly include matched filter detection, energy detection, cyclostationary feature detection and multi-resolution spectrum sensing. These methods are all single node sensing methods. However, in the case of shadow and deep fading, the sensing results of single node are not reliable, so, It is necessary to fuse the sensing results of multiple nodes to improve the detection reliability, i.e. cooperative sensing technology. In the literature, "or" criterion is used to fuse the CR sensing results. In the literature, a cooperative spectrum sensing algorithm based on D-S evidence theory is proposed. Although the performance of the algorithm is better than "or" criterion or "and" criterion, a large amount of historical information needs to be stored, The computational complexity of the algorithm is also very high. In the literature, the performance of the soft decision based on the likelihood ratio test)

标准ATP命令的处理，用于手机的，高质量代码。(ATP standard order processing, for mobile phones, high-quality code.)

将压缩感知应用于基于训练序列的信道估计中，代码展示了压缩和估计过程。(Will be used in compressed sensing training sequence based channel estimation, the code shows the compression and estimation process.)

说明：  D2D通信中开环功控的演示，并对其进行编译(Demonstration of open-loop power control in D2D communication)

说明：  实现了polar在BEC信道下的编译码，画出了误码率图像(The encoding and decoding of polar in BEC channel is realized, and the bit error rate image is drawn.)

comparison of BER performance for mapping of turbo coding with 16QAM 64QAM 128QAM

Security in Mobile Ad Hoc Networks

说明：  5G NR 的全链路仿真C代码，对学习5G算法和做5G研发的有很大的参考价值。(5g NR full link simulation C code has great reference value for learning 5g algorithm and doing 5g research and development.)