SPMA 基于信道忙统计的多信道媒体接入控制协议

LTE系统中信道的加扰调制部分,子载波建立的必要过程( LTE, modulate ,scrambing,16QAM,64QAM,QPSK,)

一个OFDM在加性高斯白噪声信道(AWGN)和多径瑞利衰落信道(MuhipathReyleighFading)下的调制解调模型，simulink建模，仿真信噪比、频谱图、星座图。(A OFDM in additive white gaussian noise (AWGN) channel and multipath Rayleigh fading channel (MuhipathReyleighFading) of demodulation model, simulink modeling, simulation SNR, spectrum diagram, constellation chart. )

说明：  ofdm信道估计，采用了LS算法，DFT进行插值(OFDM channel estimation adopts LS algorithm and DFT interpolation)

A comrehensive collection of software routines for forward error correction. Copyright 2004 by Todd K. Moon Permission is granted to use this program/data for educational/research only

说明：  turbo均衡 ，用于多径信道提升性能，map、SISO算法，PSK和QAM调制(Turbo Equalization, for multipath channel to improve performance, map, SISO algorithm, PSK and QAM modulation)

系统分别对无线通信中的几种重要的多址接入协议进行了仿真,包括pure-ALOHA,slotted-ALOHA,CSMA以及(Several important multiple access protocols in wireless communication are simulated by the system, including pure-ALOHA, slotched-ALOHA, CSMA, and the like.)

RS码的simlink仿真，可以直接运行(RS code simlink simulation, can be directly run)

直扩CDMA系统仿真程序，信道包括加性白高斯噪声，复合加性白高斯噪声，瑞利衰落，频率选择性瑞利衰落，双信道瑞利衰落。(DS CDMA system simulation program, the channel including the additive white Gaussian noise, complex additive white Gaussian noise, Rayleigh fading, frequency selective Rayleigh fading, dual-channel Rayleigh fading.)

分析OFDM 有关PAR 问题 的一个很好的PPT(Xu Pleiades PAR TING OFDM bleed at the nose cavity恀Questions instance stamp suspect exhaust cavity PPT)

GMSK的调制解调原理分析，包含MATLAB程序代码，代码后有注释(GMSK modulation and demodulation principle analysis, including MATLAB program code, code after annotations.)