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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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[Haimen_M.-_Arnson_B.]_Visual_CPP_
C++ For Dummies is an introduction to the C++ language. C++ For Dummies starts from the beginning (where else?) and works its way from early concepts and through more sophisticated techniques. It doesn’t assume that you have any prior knowledge, at least, not of programming.
- 2014-08-09 03:45:29下载
- 积分：1
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shangchuan
对信号进行小波包包变换并重构，并按自然顺序排列小波包变换后各层。(To signal wavelet package transform and reconstruction, and according to the natural order of each layer after wavelet packet transform.)
- 2014-11-07 14:51:36下载
- 积分：1
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ECGprocess123
对心电信号的经典处理，多种滤波器的设置，包含比较全面的源码和解释，并在matlab中仿真(Classic ECG processing, various filter settings, including source code and more comprehensive explanation and simulation in matlab)
- 2013-11-27 20:43:05下载
- 积分：1
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liner-formular
利用Jacobi迭代法和共轭梯度法来解线性方程组的matlab源代码(Use Jacobi iteration method and conjugate gradient method for solving linear equations matlab source code)
- 2014-02-28 16:35:31下载
- 积分：1
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first_year
for beginers who to learn matlab
- 2010-09-01 02:54:45下载
- 积分：1
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kienai
雅克比迭代求解线性方程组课设,BP神经网络用于函数拟合与模式识别，应用小区域方差对比，程序简单。( Jacobi iteration for solving linear equations class-based, BP neural network function fitting and pattern recognition, Application of small area variance comparison, simple procedures.)
- 2016-05-18 13:20:48下载
- 积分：1
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othercolor
说明： matlab工具箱系列- othercolor配色工具包(Matlab toolbox series - other color matching Toolkit)
- 2021-03-01 15:59:34下载
- 积分：1
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matlab 雷达系统建模
matlab 雷达系统建模 雷达系统设计与仿真 (matlab radar system modeling and simulation of radar system design)
- 2009-12-18 14:40:31下载
- 积分：1
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exam
是数学竞赛的往年考题！！希望对大家有用！！(Mathematics exam in previous years the competition! ! Hope it useful! !)
- 2011-01-08 12:35:50下载
- 积分：1
