Description: 针对TSP问题，提出了一种改进的遗传算法。在遗传算法中引入进化算法的思想，在此基础上提出顶端培育策略和分阶段策略，以求在保证群体多样性的同时加快收敛速度。-against TSP, an improved genetic algorithms. Genetic Algorithm evolutionary algorithm introduced the idea that the basis of this proposed strategy and cultivating top phased strategy groups in order to ensure diversity at the same time speed up the convergence. Platform: |
Size: 9216 |
Author: |
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Description: MIMO指多输入多输出，MIMO技术大致可以分为两类：发射/接收分集和空间复用。传统的多天线被用来增加分集度从而克服信道衰落，具有相同信息的信号通过不同的路径被发送出去，在接收机端可以获得数据符号多个独立衰落的复制品，从而获得更高的接收可靠性。这种技术往往要结合多天线技术，而多天线技术在移动通信中得到了广泛的研究。-MIMO refers to Multiple Input Multiple Output, MIMO technology can be broadly classified into two categories: transmit/receive diversity and spatial multiplexing. Traditional multi-antenna was used to increase the degree of diversity to overcome channel fading, the signal with the same information through different paths have been sent in the receiver-side data symbols can be multiple independent copies of the decline, which was higher reception reliability. This technology often have to combine multi-antenna technology, and multi-antenna technology in mobile communication has been widely studied. Platform: |
Size: 1024 |
Author:曹作恺 |
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Description: 蚂蚁算法的matlab实现规则来源于大自然的进化。而大自然的进化根据刚才讲的也体现为多样性和正反馈的巧妙结合。而这样的巧妙结合又是为什么呢？为什么在你眼前呈现的世界是如此栩栩如生呢？答案在于环境造就了这一切，之所以你看到栩栩如生的世界，是因为那些不能够适应环境的多样性与正反馈的结合都已经死掉了，被环境淘汰了！-Ant Algorithm matlab from the realization of the rules of nature and evolution. The evolutionary nature of the basis of the speakers also reflected in the diversity and the unique combination of positive feedback. This ingenious combination is Why? Why is presented in front of your eyes the world is so lifelike it? The answer lies in the environment has created all this, because you see life-like world, is because those who could not adapt to the environment of diversity and the combination of positive feedback have been dead and was out of the environment! Platform: |
Size: 2048 |
Author:孙子平 |
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Description: 本代码为天线的发射分集代码，已经在MATLAB环境下调试过。-The code for the antenna transmit diversity codes, have been tried in the MATLAB environment down. Platform: |
Size: 17408 |
Author:曹文利 |
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Description: 在No Diversity (1Tx, 1Rx)、Alamouti (2Tx, 1Rx)、与Maximal-Ratio Combining (1Tx, 2Rx)三种不同情形下的mimo仿真程序及误码率比较情况-In No Diversity (1Tx, 1Rx), Alamouti (2Tx, 1Rx), and Maximal-Ratio Combining (1Tx, 2Rx) three different cases of MIMO simulation program and the error rate comparisons Platform: |
Size: 2048 |
Author:chien-lun chen |
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Description: cooperative communication一个很经典的程序 对初学者很有帮助-cooperative communication procedures for a very classic very helpful for beginners Platform: |
Size: 12288 |
Author:陶华 |
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Description: 关于协同分集的一篇硕士论文，包括论文和源代码，可加深对协同分集基本原理的理解，也可在其基础上进行修改，做进一步研究-Diversity on the synergy of a master s thesis, including the papers and source code, can deepen their understanding of the basic tenets of collaborative diversity understanding, can also be carried out on the basis, in its amendments to do further research Platform: |
Size: 270336 |
Author:付红 |
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Description: Script for computing the BER for BPSK modulation in a
Rayleigh fading channel with selection diversity
-Script for computing the BER for BPSK modulation in a
Rayleigh fading channel with selection diversity
Platform: |
Size: 1024 |
Author:mohanad1 |
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Description: 通过MATLAB软件；通过仿真得出性能曲线；从而比较bpsk的性能-The bit-error rate (BER) of binary phase-shift keying
in Rayleigh fading, using the Alamouti transmission scheme and
receiver selection diversity in the presence of channel-estimation
error, is studied. Closed-form expressions for the BER of log-likelihood
ratio selection, signal-to-noise ratio (SNR) selection, switchand-
stay combining selection, and maximum ratio combining are
derived in terms of the SNR and the cross-correlation coefficient
of the channel gain and its corrupted estimate. Two new selection
schemes, space–time sum-of-squares combining selection diversity
and space–time sum-of-magnitudes selection diversity, are
proposed and proven to provide almost the same performance as
SNR selection, but with much simpler implementations. The effects
of channel- Platform: |
Size: 340992 |
Author:刘小洋 |
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Description: five script.m for
1. BER in Rayleigh fading channel with MRC
2. BER in Rayleigh fading channel with EGC
3. BER in Rayleigh fading channel with selection
4. BER in Rayleigh fading channel with alamoutistbc
5. BER in Rayleigh fading channel with beamforming Platform: |
Size: 5120 |
Author:ahla |
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Description: 因而本文基于MATLAB 针对Nakagami 衰落信道仿真了它的统计
特性,包括接收信号的复包络模拟和在具有最大比合并分集下的电平通过率及平均衰落持续时间的性能分析。重点在于理解和建立采用
MATLAB 进行信道信真的方法及对Nakagami 衰落信道本身统计特性的理解。-Based on MATLAB which Nakagami fading channel simulation for its statistical properties, including the received signal complex envelope simulation and has the maximum ratio combining diversity under the level crossing rate and average fade duration of the performance analysis. Emphasis is on understanding and the establishment of the channel using MATLAB and the letter is really way Nakagami fading channel statistical characteristics of their own understanding. Platform: |
Size: 299008 |
Author:至尊宝 |
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Description: Matlab编写的SPIHT 也叫层树分集压缩算法-Written in Matlab, also known as layer SPIHT compression algorithm tree diversity Platform: |
Size: 180224 |
Author:xianguomo |
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Description: 绘制不同函数曲线的用户界面，可控制小球运动速度的用户界面达到多样性，还有一些关于图像的频率格式转换的操作-Function curve to draw different user interface, can control the ball speed to achieve diversity in the user interface, and some on the frequency of the image format conversion operations Platform: |
Size: 2048 |
Author:李合 |
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Description: Cooperative Diversity in Wireless Networks important thesis with matlab code simulation-Cooperative Diversity in Wireless Networks important thesis with matlab code simulation Platform: |
Size: 259072 |
Author:陈鹏 |
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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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