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performanceimprovementwithpredictivechannelselecti
基于信道的历史信息来预测不同信道的未来可用时间可以帮助CR选择一个最佳信道进行信息传递。不同的预测准则应用到周期或是随机的开关模式中。一个CR可以学习以往不同信道的模式。我们提出一个简单的分类和学习方法去检测模式的类型和收集需要的信息用于智能信道的选择。MATLAB仿真结果显示提出的方案在随机信道的随机和周期模式中都有优越的表现。随着时间的变化，新到的切换次数减少到55 ，并且延迟时间也相应减少，而吞吐量却在提高。(Prediction of future availability times of different
channels based on history information helps a cognitive radio
(CR) to select the best channels for control and data
transmission. Different prediction rules apply to periodic and
stochastic ON-OFF patterns. A CR can learn the patterns in
different channels over time. We propose a simple classification
and learning method to detect the pattern type and to gather the
needed information for intelligent channel selection. Matlab
simulations show that the proposed method outperforms
opportunistic random channel selection both with stochastic and
periodic channel patterns. The amount of channel switches
needed over time reduces up to 55 , which reduces also the
delay and increases the throughput.)
- 2010-06-29 19:26:28下载
- 积分：1
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code
说明： 各种信号的产生源程序，例如阶跃信号，求导信号等(A variety of signal generation source, such as the step signal, derivative signals)
- 2010-03-26 18:35:08下载
- 积分：1
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QPSK
QPSK bloque de modulación y demodulacion. Ademas posee un bloque de BER para observar la firencia entre la señ al de entrada y de salida
- 2011-06-10 05:32:02下载
- 积分：1
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matlab
50hz工频陷波器，可用于去除生理信号中的工频干扰(50HZfilter)
- 2010-05-12 10:19:59下载
- 积分：1
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m
说明： 面阵的doa算法仿真程序，希望能通过，现在急需目标检测程序。(Plane Array SMI algorithm simulation program and we hope that the urgent need to target testing procedures.)
- 2012-06-26 21:12:54下载
- 积分：1
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1
说明： 通过Matlab仿真，对有无信道估计对系统误码率的影响进行了比较，对LS和MMSE估计算法进行比较(Matlab simulation, whether the channel estimation system bit error rate compared with LS and MMSE estimation algorithm compares)
- 2012-09-28 10:35:30下载
- 积分：1
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homomlefilter
modified rayleigh maximum likelihood filter with homogenous rotating mask filter
- 2012-10-30 21:38:25下载
- 积分：1
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F_Cluster
依据不同模糊距离公式建立模糊相似矩阵，采用matlab编程实现的模糊聚类分析的源程序代码(Fuzzy similar matrix matlab fuzzy clustering analysis of the source code programming depending on fuzzy distance formula)
- 2013-12-24 18:51:15下载
- 积分：1
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OFDM通信系统
说明： 一个相对完整的OFDM通信系统的仿真设计，包括编码，调制，IFFT，上下变频，高斯信道(A relatively complete OFDM communication system simulation design, including coding, modulation, IFFT, up and down conversion, Gaussian channel)
- 2020-10-27 16:12:43下载
- 积分：1
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连续投影算法
说明： 实现特征波长的提取，连续投影算法可以实现特征光谱信息，结合PCA实现样品分类(Realize the extraction of characteristic wavelength)
- 2021-03-23 09:20:29下载
- 积分：1
