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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: 207872 |
Author: 季昀 |
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Description: This matlab code gives the BER of MRC, EGC and SC for QPSK
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Size: 1024 |
Author: mijares |
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Description: a Matlab code that produces a plot of probability of bit error rate for QPSK versus SNR for three receive antennas, and three different combining methods: MRC, equal gain combining, and selection combining. The plot is generated by using Monte Carlo simulation. The SNR in this plot is the single-antenna average signal-to-noise ratio, and range from -5 dB to 15 dB.
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Size: 1024 |
Author: mozhii |
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Description: BER PERFORMANCE EVALUATION OF BPSK, QPSK AND QAM-16
FOR DS-CDMA SYSTEM WITH MRC AND EGC
DIVERSITY TECHNIQUES
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Size: 776192 |
Author: dilip mandloi |
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Description: 简单的MIMO模拟
假定QPSK，ML解码（SM ZF检测器除外）。
mrc.m - 最大比例组合
stc.m - 具有1和2个接收天线的Alamouti空时分组码
bf.m - 特征波束形成
sm.m - 空间复用2x2（ML解码和次优逼迫）
简单的OFDM仿真
模拟保护带，用于信道估计的循环前缀前导码符号(Simple MIMO simulations
Assumes QPSK, ML decoding (except SM ZF detector).
mrc.m - maximal ratio combining
stc.m - Alamouti space-time block code with 1 and 2 receive antennas
bf.m - Eigen-beamforming
sm.m - Spatial multiplexing 2x2 (both ML decoding and suboptimal zero forcing)
Simple OFDM simulation
Simulates guard band, cylic prefix Preamble symbol used for channel estimation)
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Size: 10240 |
Author: mls9583 |
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