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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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KL
说明： matlab实现的K-L变换实现主成分分析(matlab implementation of KL transform PCA)
- 2011-10-14 00:46:46下载
- 积分：1
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jiaruzaosheng-matlab
详细功能为图像加入噪声、包含内容有图像加入噪声的函数，图像加入噪声程序及例子(Detailed functions of adding noise to an image contains image adding noise function, image by adding noise procedures and examples)
- 2013-05-06 20:16:14下载
- 积分：1
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37626
概率论与数理统计的matlab程序，对于解决概率论的问题很有帮助(Probability Theory and Mathematical Statistics matlab program for solving the problem of probability theory is helpful)
- 2014-02-16 10:32:25下载
- 积分：1
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bgsep
这是一种二阶盲源分离算法，算法速度快，程序简单。(This is a second-order blind source separation algorithm, the algorithm fast, simple procedure.)
- 2010-10-17 11:10:33下载
- 积分：1
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v_resample
V_RESAMPLE is a Matlab function implementing nonuniform data sampling. It resamples the input data at the specified, continuously variable sampling rate, which may be locally higher or lower w.r.t. the original rate. Aliasing terms are taken care of by appropriate smoothing.
- 2010-11-17 08:22:18下载
- 积分：1
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527
完整的人连表情识别系统源代码（采用局域二值模式LBP识别）
Matlb做的界面(Even the complete source code of face recognition system (using binary mode Local LBP identification) Matlb interface do)
- 2021-04-15 16:58:54下载
- 积分：1
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untitled2222
可逆直流脉宽调速系统的仿真中很重要的一个模块PWM(Reversible DC PWM speed control system simulation is an important module in PWM)
- 2010-05-29 20:02:33下载
- 积分：1
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coif12Transform
The demand of high data rate services has been increasing very rapidly and there
is no slowdown in sight. We know that the data transmission includes both wired
and wireless medium. Often, these services require very reliable data transmission
over very harsh environment. Most of these transmission systems experience much
degradation such as large attenuation, noise, multipath, interference, time variance,
nonlinearities and must meet the finite constraints like power limitation and cost
factor. One physical layer technique that has gained a lot of popularities due to
its robustness in dealing with these impairments is multi-carrier modulation technique.
In multi-carrier modulation, the most commonly used technique is Orthogonal
Frequency Division Multiplexing (OFDM)
- 2012-11-24 20:44:51下载
- 积分：1
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wgn
产生高斯白噪声，使用matlab编辑及仿真，均值为零(have a Gaussian white noise, editing and the use of Matlab simulation, mean zero)
- 2014-05-02 08:52:46下载
- 积分：1
