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999
根据有无固定基础设施,无线局域网又可分为BSS (Basic Service Set)和IBSS (Independent Basic Service Set)。我们要研究的ad hoc网络属于后者。假设在一个ad hoc网络中,移动节点的发射功率PTx总是恒定的。要发送数据的移动节点总是先监听信道,测量接收到的信号功率X,其中X= I + N, I为接收到的干扰,N是噪声。移动节点只有在X<INThre时,才可以发射。式中,INThre为背景噪声门限。
在仿真中,我们规定每个移动节点的发射功率是常数,PTx = 1W;接收节点接收机的灵敏度Smin = -80 dBm;信号质量 min = 2 dB;系统的背景噪声门限INThre = 1.2e-10。
(According to the availability of fixed infrastructure, wireless local area network can be divided into BSS (Basic Service Set) and IBSS (Independent Basic Service Set). We have to study the ad hoc network belong to the latter. Assuming in an ad hoc network, mobile node s transmission power is always constant PTX. To send data to the mobile node always monitor channel, measuring the received signal power X, which X = I+ N, I was received interference, N is the noise. Mobile node only when X <INThre when it is fired. Where, INThre threshold for background noise. In the simulation, we require that each mobile node s transmission power is constant, PTx = 1W receiver node receiver sensitivity Smin =-80 dBm signal quality )
- 2008-01-16 00:23:39下载
- 积分:1
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SNR
随机共振相似度的Matlab计算程序,计算看出输入-输出的相似度S随着噪音的标准差的增大而不断得到改善,直到增大至一饱和值为止(an example for SR)
- 2009-05-26 17:05:32下载
- 积分:1
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lyap
lyapunov exponent ode
- 2011-11-25 03:16:38下载
- 积分:1
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Desktop
Commande vectorielle de la MAS
- 2013-12-31 00:03:32下载
- 积分:1
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ssim_index.mat
可以用于二维图像评估程序,若稍微加改进可以作为识别方法(Two-dimensional image can be used in the assessment process, if a little can add to improve the method as a means of identification)
- 2009-03-17 11:19:53下载
- 积分:1
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periodogram_white_noise
periodogram in a white noice
- 2011-02-09 02:09:57下载
- 积分:1
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fdtdx
说明: fdtd 例程,了了解和学习FDTD方法的基础,呵呵,很不错的哦(fdtd routines, understanding and learning based on the FDTD method, huh, oh very good)
- 2006-03-23 15:29:52下载
- 积分:1
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netcdf
netcdf插件、安装说明及netcdf数据读取(Nc plug-ins, installation instructions and nc data read
)
- 2012-04-30 20:01:26下载
- 积分:1
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qicheqiziyoudu
汽车七自由度的振动程序,可以求解固有频率,悬架的动挠度等,欢迎大家下载学习与交流(vibration of the car with seven degrees)
- 2013-12-22 15:01:20下载
- 积分:1
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Hilbert
MATLAB希尔伯特Hilbert变换求包络谱 源程序代码。(MATLAB Hilbert Hilbert transforms envelope spectrum source code.)
- 2015-10-09 17:22:14下载
- 积分:1