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Description: CDMA多用户检测的MATLAB程序
内有详细的CDMA建模说明文档和源程序
-CDMA multi-user detection procedures within the MATLAB detailed modeling of CDMA source code and documentation
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Size: 93991 |
Author: 苏翔 |
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Description: 描述DSCDMA多用户系统在AWGN信道下的误码率-Describes the DSCDMA multiuser system under error rate of the AWGN channel
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Size: 2048 |
Author: 谭汉洪 |
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Description: CDMA多用户检测的MATLAB程序
内有详细的CDMA建模说明文档和源程序
-CDMA multi-user detection procedures within the MATLAB detailed modeling of CDMA source code and documentation
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Size: 94208 |
Author: 苏翔 |
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Description:
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Size: 93184 |
Author: 苏翔 |
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Description: 在DS-spread spectrum系统中,噪声为加性高斯白噪声,传统单用户检测,线性解相关多用户检测和最小均方误差多用户检测的性能比较-In DS-spread spectrum system, the noise is additive white Gaussian noise, the traditional single-user detection, the linear decorrelating multiuser detection and MMSE Multiuser Detection Performance Comparison
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Size: 3072 |
Author: sunxu |
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Description: 用VC写的CDMA射频的综测代码,可以兼容CMU200或者Agilent8960测试仪.-Written by VC Integrated CDMA RF measurement code, can be compatible or Agilent8960 Tester CMU200.
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Size: 6690816 |
Author: Lyon |
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Description: CDMA盲多用户检测 matlab源程序 直接执行即可 保证正确-CDMA blind multiuser detection matlab source directly to ensure that the correct implementation of
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Size: 1024 |
Author: xiaojing |
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Description: Direct Blind Multiuser Detection for CDMA in
Multipath without Channel Estimation
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Size: 214016 |
Author: hesi |
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Description: 用BP神经网络实现的第三代移动通信CDMA多用户检测算法-Using BP neural network to achieve the third generation of mobile communication CDMA multiuser detection algorithm
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Size: 27648 |
Author: ysy |
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Description: In this project we analyze and design the minimum mean-square error (MMSE) multiuser receiver for uniformly quantized synchronous code division multiple access (CDMA) signals in additive white Gaussian noise (AWGN) channels.This project is mainly based on the representation of uniform quantizer by gain plus additive noise model. Based on this model, we derive the weight vector and the output signal-to-interference ratio (SIR) of the MMSE receiver. The effects of quantization on the MMSE receiver performance is characterized in a single parameter named 鈥漞quivalent noise variance鈥? The optimal quantizer stepsize which maximizes the MMSE receiver output SNR is also determined.-In this project we analyze and design the minimum mean-square error (MMSE) multiuser receiver for uniformly quantized synchronous code division multiple access (CDMA) signals in additive white Gaussian noise (AWGN) channels.This project is mainly based on the representation of uniform quantizer by gain plus additive noise model. Based on this model, we derive the weight vector and the output signal-to-interference ratio (SIR) of the MMSE receiver. The effects of quantization on the MMSE receiver performance is characterized in a single parameter named 鈥漞quivalent noise variance鈥? The optimal quantizer stepsize which maximizes the MMSE receiver output SNR is also determined.
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Size: 147456 |
Author: prasad |
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Description: 在码分多址系统中,求解多用户检测问题是重要环节,介绍了多用户检测问题的应用背景和发展
现状,重点综述基于半定规划模型寻求多用户检测问题次优解的几种重要方法,包括随机扰动法、
坐标下降法、半定规划的割平面法和二次规划的分枝定界法等。结合数值实验,评析比较了这些
方法的优缺点-Quasi-Maximum-Likelihood Multiuser Detection
Using Semi-Definite Relaxation With Application
to Synchronous CDMA
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Size: 218112 |
Author: 飞云 |
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Description: DS-spread spectrum系统中,噪声为加性高斯白噪声,传统单用户检测,线性解相关多用户检测和最小均方误差多用户检测的性能比较-DS-spread spectrum system, the noise is additive white Gaussian noise, the traditional single-user detection, the linear decorrelating multiuser detection and MMSE Multiuser Detection Performance Comparison
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Size: 1024 |
Author: wangyanli |
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Description: Description for comparison CDMA multiuser
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Size: 357376 |
Author: sano |
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Description: 包含CDMA各种多用户检测的算法,对做多用户检测的初级学生来说非常有价值-Contains a variety of CDMA multiuser detection algorithm
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Size: 8192 |
Author: 宝贝 |
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Description: Multiuser Detecfion for
CDMA Systems-Multiuser Detecfion for
CDMA Systems
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Size: 1398784 |
Author: siva |
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Description: Introduce the Multiuser Detection (MUD) for DS-CDMA system
Give two MUD methods for DS-CDMA system
–Decorrelating MUD
–Subspace MMSE MUD
Compare them with traditional decorrelating detection
Study the BER vs. SNR performance
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Size: 146432 |
Author: almamori |
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Description: it is a code in MATLAB for calculation of bit error ratio vs signal to noise ratio , for multiuser code division multiple access .. usually in any communication system calculation of BER is very important to know the performance of system .. so in this program multiuser CDMA system is used ,, spreading is done using HADAMARD matrix .. or WALSH code .. and BER vs SIGNAL to NOISE ratio graph is computed-it is a code in MATLAB for calculation of bit error ratio vs signal to noise ratio , for multiuser code division multiple access .. usually in any communication system calculation of BER is very important to know the performance of system .. so in this program multiuser CDMA system is used ,, spreading is done using HADAMARD matrix .. or WALSH code .. and BER vs SIGNAL to NOISE ratio graph is computed
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Size: 2048 |
Author: hassan |
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Description: 本文针对并行干扰抵消检测器的不足之处，提出了改进的并行干扰抵消检测算法——基于多项式展开的并行干扰抵消多用户检测算法。该算法将多项式展开检测器作为并行干扰抵消检测器第一级的数据估计值，以提高检测可靠性。通过仿真实验，首先验证了多项式展开检测器的性能。然后比较改进算法与传统检测器的性能，验证改进算法的系统性能得到明显改善；并与并行干扰抵消检测器、解相关检测器和MMSE检测器相比较，验
证得到该改进算法的性能也有不同程度的改善。
-this paper discusses the principle and performance of the
conventional detector and the parallel interference cancellation(PIC)detector
separately.Since the conventional detector take MAI only as the background noise without considering the existence of the other users,the existence of MAI has a significant impact on the performance of CDMA systems.Each stage of PIC detector utilizes the data estimates of the initial or previous stage,produces a new set of MAI estimates,and then subtracts out all of the MAI for each user in parallel.Through Monte Carlo simulation in different scenarios,the results illustrate the influence of MAI in conventional CDMA ystems.Theexperimental results show PIC detector can effectively eliminate MAI andimprove the system BER.
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Size: 571392 |
Author: bluels123 |
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Description: IEEE TRANSACTIONS ON SIGNAL PROCESSING, VOL. 49, NO. 6, JUNE 2001, " Adaptive Minimum-BER Linear Multiuser Detection for DS-CDMA Signals in Multipath Channels Sheng Chen, Senior Member, IEEE, Ahmad K. Samingan, Bernard Mulgrew, Member, IEEE, and Lajos Hanzo"
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Size: 208896 |
Author: Kala Praveen |
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Description: multiuser cdma detection in cdma
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Size: 1582080 |
Author: Ankit |
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