MATLAB的QPSK在瑞利、高斯和莱斯信道下仿真

用matlab/simulink中s函数实现VCO(S function implementation with VCO in simulink)

说明：  基于传统信道估计LS，MMSE，和不同多普勒频移下的误码率等(Based on the traditional channel estimation ls, MMSE, and different Doppler frequency shift bit error rate)

说明：  关于polar code的信息，我认为非常有用。这不是我写的(As for the information of polar code, I think it is very useful. It is not written by me)

LDPC校验矩阵生成、高斯消去法编码、BP译码程序，可以作为自己编写LDPC编译码程序的参考。因为matlab代码效率不高，所以这个程序仿真起来比较慢.(LDPC check matrix generation, Gaussian elimination coding, BP decoding procedure can be used as its own procedures for the preparation of LDPC codec reference. Because matlab code efficiency is not high, so this process is relatively slow simulation together.)

说明：  认知无线电在CDMA系统中基于非合作博弈功率控制技术的MaTLAB仿真(Cognitive Radio in CDMA system, power control based on non-cooperative game simulation techniques MaTLAB)

信道估计方面的参考，初学者会有很大帮助，基于OFDM系统，有最基本的算法仿真和对比(Channel estimation in terms of reference for beginners will be of great help to the OFDM-based systems, simulation and comparison of the basic algorithm)

为评估TD_SCDMA下行链路联合检测接收机的性能，使用MATLAB软件进行链路仿真，本程序主要是实现用户QPSK基带调制、扩频、加扰、形成时隙、形成子帧、以及进行脉冲形成滤波，通过加性高斯白噪声信道和瑞利衰落多径信道，信道估计、联合检测等几个主要过程，整个仿真都是在基带进行的。(Link simulation to assess the performance of the TD_SCDMA Downlink joint detection receiver using MATLAB software, this program is the main user QPSK baseband modulation, spreading, scrambling to form a slot to form a sub-frame, as well as for pulse formation filter, through an additive white Gaussian noise channels and Rayleigh fading multipath channel, channel estimation, the joint detection of several major process, the entire simulation in the baseband)

A consumer that consumes a fixed number of values.

说明：  Realizing the Quality of Service (QoS) in Software-Defined Networking (SDN) Based Cloud Infrastructure

说明：  求根music，music的改编方法，music的改进减小复杂度无需谱峰搜索(rootMUSIC,An adaptation of jugen music)