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polar-coded-SCMA-master

于 2020-08-04 发布

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下载积分: 1 下载次数: 6

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代码说明：

说明：这是SCMA和polar编码的matlab源文件(This file is the matlab source of the SCMA and polar coded)

文件列表：

polar-coded-SCMA-master, 0 , 2018-09-19
polar-coded-SCMA-master\JIDD.m, 5386 , 2018-09-19
polar-coded-SCMA-master\README.md, 1434 , 2018-09-19
polar-coded-SCMA-master\codebook_6users_4chips_qpsk.mat, 493 , 2018-09-19
polar-coded-SCMA-master\constructedCode, 0 , 2018-09-19
polar-coded-SCMA-master\constructedCode\PolarCode_block_length_1024_sigma_0.90_method_GA.txt, 4013 , 2018-09-19
polar-coded-SCMA-master\constructedCode\PolarCode_block_length_128_sigma_0.90_method_GA.txt, 404 , 2018-09-19
polar-coded-SCMA-master\constructedCode\PolarCode_block_length_256_designSNR_0.00dB_method_BhattaBound.txt, 916 , 2018-09-19
polar-coded-SCMA-master\constructedCode\PolarCode_block_length_256_sigma_0.90_method_GA.txt, 916 , 2018-09-19
polar-coded-SCMA-master\constructedCode\PolarCode_block_length_512_sigma_0.90_method_GA.txt, 1940 , 2018-09-19
polar-coded-SCMA-master\fFunction.m, 75 , 2018-09-19
polar-coded-SCMA-master\initPC.m, 1232 , 2018-09-19
polar-coded-SCMA-master\log_sum_exp.m, 298 , 2018-09-19
polar-coded-SCMA-master\main_JIDD.m, 3599 , 2018-09-19
polar-coded-SCMA-master\pencode.m, 1741 , 2018-09-19
polar-coded-SCMA-master\polar_SCAN_decode_alpha.m, 768 , 2018-09-19
polar-coded-SCMA-master\result.bmp, 705654 , 2018-09-19
polar-coded-SCMA-master\result.fig, 22339 , 2018-09-19
polar-coded-SCMA-master\scmaenc.m, 837 , 2018-09-19
polar-coded-SCMA-master\updateBitMap.m, 628 , 2018-09-19
polar-coded-SCMA-master\updateLLRMap.m, 696 , 2018-09-19

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2009-12-06 16:01:08下载

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2021-04-17 19:28:52下载

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2021-02-14 16:59:48下载

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master thesis for wireless ad hoc network

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2020-11-18 19:29:38下载

积分：1
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次程序用来仿真叠加了地杂波和高斯白噪声的回波信号(Second program is used to simulate the ground clutter superimposed Gaussian white noise and the echo signal)

2011-11-24 10:37:49下载

积分：1
5714272
说明：基于matlab的脉冲编码仿真,pcm 模块仿真系统等(Pulse coding Simulation based on matlab, Simulation system of pcm Module and so on)

2019-03-27 21:12:09下载

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2020-02-10 09:39:04下载

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2020-11-18 20:49:38下载

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说明：前已提出的频谱感知方法主要包括匹配滤波器检测、能量检测、循环平稳特征检测以及多分辨率频谱感知. 这些方法均为单节点感知方法.然而，在阴影和深度衰落情况下，单个节点的感知结果并不可靠，因此，需要对多个节点的感知结果进行融合，以提高检测可靠性，即协作感知技术. 文献采用“或” 准则对各个 CR 感知结果进行融合. 文献则提出了基于 D-S 证据理论的协作频谱感知算法，虽然该算法的性能比“或” 准则或“与”准则要好，但需要存储大量历史信息，算法的计算复杂度也很高. 文献中分析了采用似然比检测(likelihood ratio test， LRT) 的软判决与采用“与” 准则的硬判决的性能，结果表明采用软判决的协作感知性能更优(Previously proposed spectrum sensing methods mainly include matched filter detection, energy detection, cyclostationary feature detection and multi-resolution spectrum sensing. These methods are all single node sensing methods. However, in the case of shadow and deep fading, the sensing results of single node are not reliable, so, It is necessary to fuse the sensing results of multiple nodes to improve the detection reliability, i.e. cooperative sensing technology. In the literature, "or" criterion is used to fuse the CR sensing results. In the literature, a cooperative spectrum sensing algorithm based on D-S evidence theory is proposed. Although the performance of the algorithm is better than "or" criterion or "and" criterion, a large amount of historical information needs to be stored, The computational complexity of the algorithm is also very high. In the literature, the performance of the soft decision based on the likelihood ratio test)

2020-11-19 21:19:37下载

积分：1

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