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this script simulate the cooperative communication in order to get the number of packets suuccessfully transmitted by direct link and relay link

说明：  最短路径的Dijkstra算法程序。Dijkstra算法是典型最短路算法，用于计算一个节点到其他所有节点的最短路径。主要特点是以起始点为中心向外层层扩展，直到扩展到终点为止。Dijkstra算法能得出最短路径的最优解，但由于它遍历计算的节点很多，所以效率低。 　　Dijkstra算法是很有代表性的最短路算法，在很多专业课程中都作为基本内容有详细的介绍，如数据结构，图论，运筹学等等。 (The Dijkstra shortest path algorithm for the procedure. Dijkstra algorithm is a typical shortest path algorithm, used to calculate a node to all other nodes of the shortest path. The main characteristics is the starting point as the center outward expansion layers, until the end date be extended to. Dijkstra shortest path algorithm can arrive at the optimal solution, but because of its calculation of the node traversal, so inefficient. Dijkstra algorithm is very representative of the shortest path algorithm, in many professional courses in the basic content as described in detail, such as data structures, graph theory, operational research and so on.)

说明：  fcm实现简单的数值分类，只要你重新定义数据矩阵，就可以直接进行分类。(FCM implements simple numerical classification, which can be directly classified as long as you redefine the data matrix.)

说明：  喷泉码中LC码的仿真程序，平台是matlab，除了仿真程序外，还包括对喷泉码的简单介绍(The simulation program of LC code in fountain code is based on MATLAB. In addition to the simulation program, it also includes a brief introduction of fountain code)

signal specter

说明：  最优多用户检测，即最大后验概率的算法，主要是用于多用户检测中(Optimal multi-user detection, that is, maximum a posteriori probability algorithm, mainly used for multi-user detection)

产生任意长度的M序列，并计算该M序列的自相关函数和功率谱密度函数。用于系统辨识(Generated sequence of random length M, and calculate the M series autocorrelation and power spectral density function. For system identification)

MATLAB优化模型求解，对于等效法的构建(MATLAB optimization model, for according to build)

关于高斯白噪声的信噪比的精确计算。。。。。。。。。。。。(Accurate Calculation of Signal-to-Noise Ratio of Gauss White Noise)

利用MUSIC算法对空间来波方向进行估计，并且结合空间平滑技术实现对空间相干源的DOA估计(MUSIC algorithm for use of space DOA estimation, and combined with spatial smoothing technique for spatial coherence source implementation of the DOA estimates)