QPSKsimulat

针对MIMO-OFDM系统中期望最大化(EM)信道估计算法在高信噪比(SNR)下带来的误差地板(EF)现象,且OFDM符号的数据传输效率随发射天线数的增加而明显降低,提出一种改进的高效EM信道估计算法。该算法首先引入一种准确的等效信号模型并推导出一种修正的EM算法,改善了EM算法在高SNR下的性能 在多个OFDM间利用相位正交导频序列来提高数据传输效率,同时进行联合信道估计以提高估计性能。仿真实验验证了所提算法具有更高的信道估计性能和更高的数据传输效率。(For multiple-input multiple-output with orthogonal frequency division multiplexing(MIMO-OFDM) systems,the error floor(EF) phenomenon at high signal noise rate(SNR) was induced by the expectation maximum(EM) channel estimation algorithm.In addition,the data transmission efficiency was declined obviously with the increasing number of transmit antennas.According to these problems,an improved and efficient EM channel estimation algorithm was pro-posed.Firstly,an accurate and equivalent signal model was introduc...)

不同的相邻分组数目v实现的pts抑制ofdm峰均比的算法，可以仿真出v越大，papr的性能越好(Different number of adjacent sub-v realize the pts OFDM PAPR suppression algorithms, simulation of v can be greater, papr better performance)

说明：  单频、宽带信号的线阵、面阵波束形成，用的是fft能量或者幅度求和的做法(Beamforming of linear array and area array for single frequency and broadband signals)

说明：  opnet学习入门视频教程 这个对初学者很有用的(opnet Getting Started video tutorial to learn this very useful for beginners)

It is mainly used for ARQ simulation ,such as stop-and-wait

bluetooth é o que há, manda ve no perl.

【matlab】Clarke信道全向天线和环形天线包络协方差与成型因子关系仿真代码(Simulation code of the relationship between the envelope covariance of the Clarke channel omnidirectional antenna and the ring antenna and the forming factor using MATLAB)

Specification for the WiMAX Standard (包括如何用simulink实现,简单易懂)(Specification for the WiMAX Standard (including where What is the purpose of achieving Simulink and easily understood))

this is simply a report on the fading channel on different modulation scheme

极化码系统完整仿真，针对不同信道实现的对比(Polarization code system complete simulation, comparison for different channels.)