Description: The results for 2×2 MIMO with Maximum Likelihood (ML) equalization helped us to achieve a performance closely matching the 1 transmit 2 receive antenna Maximal Ratio Combining (MRC) case. Platform: |
Size: 1024 |
Author:Umashankar Dewangan |
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Description: SM、V-BLAST、MRC系统仿真比较 SM、V-BLAST、MRC系统6bits传输仿真结果-Normalized maximum ratio combining (NMRC) detection algorithm, NMRC algorithm for general channels, flat fading channel Tan Ruili, Gaussian white noise, the receiver has received a perfect channel state information. Platform: |
Size: 17408 |
Author:刘晓艳 |
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Description: 主函数Alamouti(Nr,max_snr,max_err_symbol,symbol_per_frame)
调用函数QpskMapping(psudo_bit_sequence)－－二进制数据到QPSK信号的变换
调用函数RayleighCH(Nr,Nt)－－瑞利衰落信道模拟
仿真示例：
Alamouti(1,12,20,24)
说明：
1.2根发射天线、1根接收天线
2.最高信噪比为12dB，即仿真范围为0dB到12dB
3.在每个信噪比条件下,误符号数超过20即停止该信噪比条件下的仿真
4.每一帧数据为24个QPSK符号
综合仿真函数SimAlamouti(max_snr,max_err_symbol,symbol_per_frame)
具有一根接收天线系统的SER性能与二根接收天线的系统SER性能比较
SimAlamouti(12,20,24)
参数说明：
1.max_err_symbol的取值直接影响了仿真的精度：取值越大，精度越高，误符号率曲线也更平滑；但需更长的仿真
时间
2.一般max_snr小于15dB，程序中snr为信号噪声功率比
3.本程序仿真时未考虑帧与帧之间，信道衰落系数的相关性，因此symbol_per_frame一定程度上表征了信道相关时
间的大小，即在symbol_per_frame个QPSK信号发送时间内，信道衰落系数是不变或缓变的，而在下一帧数据中，
信道衰落系数可以认为已变成另一值
4.本程序假定在接收端已通过信道估计获得信道衰落系数-ALAMOUTI performs Monte-Carlo simulation and estimates Bit Error Rate
(BER) of Alamouti Scheme [1] over Rayleigh channel. The scheme presumes
2 transmit (Tx) and arbitrary number of receive (Rx) elements.
If Rx=1 (one receive element) ALAMOUTI is transformed to the order 2
transmit diversity scheme with Maximum Ratio Combining (MRC). The
modulation format is MPSK with arbitrary order M which can be
controlled by user. Platform: |
Size: 203776 |
Author:chenyiren |
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Description: 该程序是使用Matlab仿真协同通信的DF（解码转发）基本性能，基本模型S-R-D三个节点，接收端使用MRC（最大比合并）。固定DF由于SR信道的错误，其性能受到限制，在大SNR情况下不能获得有效分集。而当SR距离足够近的时候，可能获得一定的分集增益。-The program is a cooperative communication using Matlab simulation DF (decode forwarding) basic performance, the basic model of the SRD three nodes, the receiver uses the MRC (maximum ratio combining). Fixed DF error of the SR channel, its performance is limited, can not obtain a valid diversity in the large SNR case. When the SR close enough, you may get some diversity gain. Platform: |
Size: 10240 |
Author:梁家明 |
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Description: 该程序是使用Matlab仿真协同通信的DF（解码转发）基本性能，基本模型S-R-D三个节点，接收端使用MRC（最大比合并）。固定DF由于SR信道的错误，其性能受到限制，在大SNR情况下不能获得有效分集。而当SR距离足够近的时候，可能获得一定的分集增益-The program is a cooperative communication using Matlab simulation DF (decode forwarding) basic performance, the basic model of the SRD three nodes, the receiver uses the MRC (maximum ratio combining). Fixed DF error of the SR channel, its performance is limited, can not obtain a valid diversity in the large SNR case. When the SR close enough, you may get a certain amount of diversity gain Platform: |
Size: 1024 |
Author:高华 |
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Description: bti error rate of MIMO channel with maximum ratio combining and seclecting cimbining and equal gain Platform: |
Size: 5120 |
Author:hadi |
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Description: 《空时无线通信导论》第五章所有仿真图像matlab再现程序。包括MIMO信道中Alamouti 编码，最大比合并MRC，衰落信道中的发射接收端性能比较。-" Introduction to Space-time Wireless Communications," Chapter V all simulation matlab image reproduction program. Including MIMO channel Alamouti coding, the maximum ratio combining MRC, transmitting and receiving side performance comparison fading channel. Platform: |
Size: 1428480 |
Author:梅西 |
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Description: 程序是使用Matlab仿真协同通信的DF（解码转发）基本性能，基本模型S-R-D三个节点，接收端使用MRC（最大比合并）。固定DF由于SR信道的错误，其性能受到限制，在大SNR情况下不能获得有效分集。而当SR距离足够近的时候，可能获得一定的分集增益。-Matlab simulation program using cooperative communication DF (decode forwarding) basic performance, basic model SRD three nodes, the receiver using MRC (maximum ratio combining). Because of the fixed DF SR channel errors, its performance is limited, under the circumstances could not obtain effective SNR diversity. When SR close enough, I could get some diversity gain. Platform: |
Size: 2752512 |
Author:史魁魁 |
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Description: Max Ratio Transmisson,最大比传输，MIMO系统中的一种预编码方式，通常配合接收端的MRC最大比合并进行通信。-Max Ratio Transmisson, maximum ratio transmission, MIMO pre-coding system is one way, usually with the receiving end of the maximum ratio combining MRC communicate. Platform: |
Size: 10240 |
Author:CaiQS |
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Description: Abstract—Selection combining cascaded with maximum-ratio
combining (SC/MRC), which is particularly useful when site
diversity is available, combined with low-density parity-check
(LDPC) codes is able to combat the effects of fading. The biterror
rate (BER) expressions of uncoded SC/MRC and SC/MRC
with LDPC codes over an independent and identically distributed
Rayleigh-fading channel are derived based on the Gaussian
approximation approach. These expressions are also applicable
to the selection combining and maximum-ratio combining as
special cases. The derived expressions are in good agreement
with simulation results and approach the density evolution (DE)
thresholds. These expressions are able to achieve a significant
reduction in computational time with a reasonable accuracy for
analyzing the BER performance as compared to simulations and
DE.
Platform: |
Size: 99328 |
Author:ppdghius |
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Description: This code to demonstrate the performance Rayleigh fading channel
With Maximum Ratio Combining (MRC)-This code to demonstrate the performance Rayleigh fading channel
With Maximum Ratio Combining (MRC) Platform: |
Size: 1024 |
Author:Khamis |
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Description: 最大比合并能获得最大信噪比的证明及相关对比-The maximum ratio combining can get certificates and relevant comparison of the maximum signal to noise ratio Platform: |
Size: 174080 |
Author:Chico |
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Description: 最大似然译码算法在Alamouti方案中的应用。理论上推导出发射天线数为2接收天线为的Alamouti方案与发射天线为1接收天线为2的最大比合并（MRC）接收分集的分集增益相同。并通过Matlab对系统进行了仿真，验证了理论分析的正确性。-Maximum likelihood decoding algorithm in Alamouti Scheme. Theoretically antenna number 2 to the receiving antenna and transmitting antenna Alamouti scheme as a receiving antenna 2 is maximum ratio combining (MRC) diversity reception diversity gain of the same. And the system by Matlab simulation to verify the theoretical analysis. Platform: |
Size: 4096 |
Author:王琛 |
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Description: In this paper, an Alamouti-coded decode-And-forward protocol with optimum relay selection for three-user one
destination cooperative communications is investigated. Particularly, we design the new protocol that allows the
source node retransmitting the signal to the destination node at the same time as the relay node forwarding the
received signal to the destination node with an Alamouti coding scheme. We exploit the cooperative maximum
ratio combining technique (C-MRC) at the destination for combining a multiple copy of received signals. Platform: |
Size: 2217984 |
Author:Hakim |
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Search - Maximum Ratio Combining MRC