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应用背景Massive multiuser MIMO (MISO): ◮ M ≫ K ≫ 1 (think 100 × 10 or 500 × 50) ◮ coherent, but simple, processing ◮ Potential to dramatically improve rate & reliability ◮ Potential to drastically scale down TX power ◮ Not only theory, at least one known testbed (64× ∼10) 关键技术 Massive MIMO Operation Not enough resources for pilots & CSI feedback, so operate in TDD. ◮ On the uplink, ◮ acquire CSI from uplink pilots and/or blindly from data ◮ detect symbols ◮ M ≫ K ⇒ linear processing (MRC, ZF, MMSE) nearly optimal ◮ On the downlink, ◮ use CSI obtained on the uplink ◮ make necessary adjustments based on reciprocity calibration ◮ apply multiuser MIMO precoding ◮ simple precoders desirable (and very good!): MRT, ZF, MMSE, ... ◮ MRC/MRT operation ◮ intracell interference will appear as

常用算法的C程序。主要内容包括多项式的计算、复数运算、随机数的产生、矩阵运算、矩阵特征值与特征向量的计算、线性代数方程组的求解、非线性方程与方程组的求解、插值与逼近、数值积分、常微分方程组的求解、数据处理、极值问题的求解、数学变换与滤波、特殊函数的计算、排序和查找。-Commonly used algorithm of C procedures. Include polynomial terms, complex computation, random number generation, matrix operations, matrix eigenvalue and eigenvector calculations, linear algebra equations, nonlinear equations with the equations, interpolation and approximation, numerical integration, solving ordinary differential equations, data processing, for solving extremum problems, mathematical transformation and filtering, the calculation of special functions, sorting and search.

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windows 平台下的很好用，很快速，功能强大的快速傅立叶变换动态连接库，有头文件和说明书。-A fast Fourier transform tool

简单DES加密算法C语言代码实现，可以简单的实现但有点问题哪里错了不知道请大家帮忙看看，自己写的可能不太完整，水平有限请多多包涵。

代码下进行离散傅立叶变换输入：编号的样品和样品的值输出：实部的名单 - 想象的一部分 - 幅度

棋盘填数问题 在N*N的棋盘上（1

很不容易找到的一个外国人写的Fp-growth的算法。注释很清楚，编程风格值得借鉴-Not easy to find a foreigner to write the Fp-growth algorithm. Notes It is clear that programming style is worth learning from

集成ifft和fft，以头文件的形式提供调用，可以用于任何C编译器-integration and fft to the first document in the form of call, can be used on any C compiler

代码主要是实现Basic DE的算法思想！，绝对有帮助啊！希望支持！