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Description: mc-cdma扩频通信系统中误码率分析仿真与编写-mc-CDMA spread-spectrum communication system BER simulation and analysis prepared
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Size: 5120 |
Author: na |
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Description: 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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Size: 5120 |
Author: 吴俊 |
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Description: This code was used for making the practical measurements in section 2.3 of my thesis. This Matlab code allows an OFDM signal to be generated based on an input data file. The data can be random data, a grey scale image, a wave file, or any type of file. The generated OFDM signal is stored as a windows wave file, allowing it to be viewed, listened to and manipulated in other programs. The modified wave file can then be decoded by the receiver software to extract the original data. This code was developed for the experiments that I performed in my honours thesis, and thus has not been fully debugged.
This is the original code developed for the thesis and so has several problems with it. The BER performance given by the simulations is infact Symbol Error Rate.
-This code was used for making the practical measurements in section 2.3 of my thesis. This M atlab code allows an OFDM signal to be generated based on an input data file. The data can be rando m data, a gray scale image, a wave file, or any type of file. The OFDM signal is generated stored as a windows wave file, allowing it to be viewed. listened to and manipulated in other programs. The modified wave file can then be decoded by the receiver software to extract the original data . This code was developed for the experiments th at I performed in my honors thesis, and thus has not been fully debugged. This is the original code developed for the thesis and so ha 's several problems with it. The BER performance given by the simulations is infact Symbol Error Rate.
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Size: 161792 |
Author: 王文 |
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Description: ：首先介绍了DS--UWB系统的的发射与接收模型，然后分析了利用滑动相关法对信道进行估讣，并巾此给出
了不同RAKE接收机RAKE合成权系数选取方案。对接收机采用最大比(MRC)、最小均方误差(MM SE)及带均衡
器的(MRC)合并系数选取的误码性能进行了仿真和对比。结果表明了带均衡器的MRC—RAKE只用较少的分支
就可以达到接收性能明显优于MMSE—RAKE的程度。尤其在信噪比比较大时。这种优势更加明显。-: First of all, the introduction of the DS UWB system model of the launch and reception, and then analyzed using the sliding correlation method for estimation of channel obituary, and towels, this gives the RAKE receiver RAKE synthesis of different weights to select the program. On the receiver using maximal ratio (MRC), minimum mean square error (MM SE) and band equalizer (MRC) combined coefficient selected BER simulation and comparison. The results show that the equalizer with MRC-RAKE only with fewer branches on the receiver performance can be achieved significantly better than MMSE-RAKE level. Particularly in the relatively large signal to noise ratio. This advantage becomes even more evident.
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Size: 151552 |
Author: 季昀 |
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Description: 此程序为DS-CDMA链路中加入基于子空间的PASTd多用户检测方法。系统中采用m序列阔频，可以通过高斯信道或瑞利信道。可以直接运行得到不同信噪比下的误码率曲线。-This procedure for the DS-CDMA link by adding space-based sub-PASTd multi-user detection methods. System m sequence used in wide-band, you can channel through the Gaussian or Rayleigh channel. Can be directly run different SNR BER curves.
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Size: 201728 |
Author: 王星 |
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Description: 此程序为DS-CDMA链路中加入基于子空间的PAST多用户检测方法。系统中采用m序列阔频，可以通过高斯信道或瑞利信道。可以直接运行得到不同信噪比下的误码率曲线。-This procedure for the DS-CDMA link by adding the PAST subspace-based multi-user detection methods. System m sequence used in wide-band, you can channel through the Gaussian or Rayleigh channel. Can be directly run different SNR BER curves.
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Size: 201728 |
Author: 王星 |
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Description: 本程序用来实现CDMA的调制及解调，用来计算BER-This procedure used to achieve the CDMA modulation and demodulation, used to calculate the BER
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Size: 4096 |
Author: lilihong |
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Description: A simple program for simulation of CDMA system with Walsh-Hadamard Code.
Result of this program is plot of BER vs SNR.
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Size: 26624 |
Author: Ardalan |
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Description: Ber ebvaluation of MC CDMA system for wireless communication
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Size: 46080 |
Author: mahesh kumar R |
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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: simcdma.m allows a set of CDMA parameters to be simulated, such
as BER verse number of users, etc. All the graphs used in the
thesis were generated using this script. The output from this script
is a Result.txt file which is a comma delimited spread sheet compatible
file.
simcdma.m also has all the settings for the CDMA link parameters.
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Size: 16384 |
Author: mohammed |
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Description: this a matlab code for cdma it is a calculation of ber,snr etc.
-this is a matlab code for cdma it is a calculation of ber,snr etc.
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Size: 91136 |
Author: s |
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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: DS-CDMA的MMSE算法程序，给出了不同信噪比下的BER性能比仿真曲线。-DS-CDMA of the MMSE algorithm program are given under different signal to noise ratio curve of BER performance than emulation.
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Size: 2048 |
Author: 杨俊炜 |
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Description: its a matlab code to implement a matched filter for a single user and get a ber versus snr plot. uses 31 length 5 gold sequences for cdma.
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Size: 1024 |
Author: sneha |
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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: BER of SIC receiver used in CDMA
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Size: 2048 |
Author: sam |
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Description: multiple CDMA codes for calculation BER And also showing spreading and despreading
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Size: 30720 |
Author: imran |
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Description: This paper presents a novel robust number theoretic
transform called inverse Gray Robust Symmetrical Number System
(IGRSNS) and proposes its application for CDMA systems. The
transceiver structure for three moduli IGRSNS-CDMA with one
redundant modulus is proposed. The proposed system is simulated
for different values of moduli sets under various channel
conditions. Simulation results show that the BER performance
of IGRSNS-CDMA outperforms that of RNS-CDMA under all
circumstances.
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Size: 352256 |
Author: Meenu |
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