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该函数仿真CDMA系统的信道，在输入所需用户序列和其他干扰用户序列后在信号上叠加高斯白噪声，干扰用户多径干扰和所需用户的多径干扰和衰落。并根据输入延时曲线产生信道延时，输出mul_fad_sequence为信道信号输出，max_delay为信道最大延迟，fade_sign为瑞利信道中最大幅度分量的衰落量 mpath_amp为信道多径的幅度因子-the CDMA system simulation function of the channel, required users to import
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ds-cdma系统仿真，考虑在多径衰落信道情况下，系统的误码率-ds-cdma system simulation, consider the multi-path fading channel circumstances, the BER
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单用户多载波时频域联合cdma扩频的仿真，使用类编程。包含发送，信道，接收3个类。有联合扩频，调制，FFT变换，高斯信道和瑞利，解调，解扩，统计误码率等功能，减小仿真点数可使程序运行更快。,Single-user multi-carrier cdma joint time-frequency domain spread spectrum simulation, the use of programming. Send contain, channel, receiving three categ
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The Interleaved Frequency Division Multiple Ac-
cess (IFDMA) scheme is based on compression, repetition and
subsequent user dependent frequency shift of a modulated signal.
Multiple access is enabled by the assignment of overlapping but
mutua
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Blind Source Seperation (BSS) now is a important technology. Independent Component Analysis (ICA) is the main technique of BSS. Suppose we mix many non-Gausse signal sources,ICA can seperate the mixed signal to orignal signals without any information
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多用户多载波时频域cdma扩频的仿真，使用类编程。包含发送，信道，接收3个类。有选择用户数，联合扩频，调制，FFT变换，高斯信道和瑞利，解调，解扩，统计误码率等功能，减小仿真点数可使程序运行更快。-Multi-user multi-carrier spread spectrum cdma time-frequency domain of the simulation, the use of programming. Send contain, channel, receiving three c
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直扩码分多址DS-CDMA是利用高速的WALSH正交码序列作为地址码，与多用户信息数据相乘得到信息数据的直接扩频信号，再经过BPSK调制后发送出去，经过AWGN无线信道的传输后，在接收端与本地产生的地址码进行相关检测，从中将地址码与本地码一致的用户数据选出，把不一致的用户数据删除。-DS-CDMA DS-CDMA is the use of high-speed WALSH orthogonal code sequences as address code, with multi-user in
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多用户的高斯信道CDMA仿真，可以模拟传输三路语音信号-Multi-user Gaussian CDMA channel simulation can simulate the three-way voice signals transmitted
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this project realted tothe multi user detection of ds cdma signals.comparision is done for different spreading sequences
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This Matlab program simulate one user Convolutional coding MC-CDMA on Multi path fading channel -This Matlab program simulate one user Convolutional coding MC-CDMA on Multi path fading channel
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A matlab code that simulate wavelet based OFDM CDMA over multi path fading channel with covvolutional encoder. -A matlab code that simulate wavelet based OFDM CDMA over multi path fading channel with covvolutional encoder.
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MC-CDMA系统性能仿真，高斯信道，两路多径干扰，其中还有码同步问题。配有详尽的解释-MC-CDMA system performance simulation, Gaussian channel, two-way multi-path interference, which are code synchronization. With a detailed explanation
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在AWGN信道下CDMA传输的多用户信噪比比较-CDMA in AWGN channel Comparison of transmission of multi-user signal to noise ratio
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近年来随着移动互联网业务和物联网业务的兴起与
发展，用户对移动宽带业务需求越来越旺盛，对移动通信
网络的接入速率和质量要求也越来越高，原有基于码分多
址（CDMA）的3G及其增强技术未来将无法满足业务发展
需要，因此3GPP及3GPP2组织自2004年开始启动长期
演进（LTE）/空口演进（AIE，后改名为超移动宽带UMB）项
目，旨在通过引入一些关键技术，如正交频分复用（OFDM）
调制技术、多入多出（MIMO）技术、混合自动重传请求
（HARQ）、全IP扁平化
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DS-CDMA通信系统，扩频码包括M序列。GOLD，正交GOLD，Gray规则瑞利衰落信道，多用户，统计误码率。,DS-CDMA communication system, the spreading codes including an M sequence. GOLD, orthogonal GOLD, Gray rules Rayleigh fading channel, multi-user, the statistical error rate.
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Optimum MUD for DS-CDMA in Multi-Path Fading Channel 2 USERS- Optimum MUD for DS-CDMA in Multi-Path Fading Channel 2USERS
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Optimum MUD for DS-CDMA in Multi-Path Fading Channel K USERS
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A Hybrid Orthogonal Frequency Division Multiplexing & Code-Division Multiple-Access (OFDM-CDMA)
This is a simulation program for uncoded OFDM-CDMA system with QPSK modulation
and Complex channel modelled by Rayleigh fading. The program is modifie
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Multi user environnent in CDMA communication system in multi path channel
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this code matlab calculte the BER vs SNR of multi user CDMA system using different detectors sush as MMSE and ZF in rayleigh channel model
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