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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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SGA_liuguohua
关于简单的遗传算法的实现,包括初始化种群,自然选择,交叉,变异算法的几个源程序文件(On simple genetic algorithm, including the initial population, natural selection, crossover and mutation algorithms several source files)
- 2013-11-23 21:18:36下载
- 积分:1
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xu(1)
饱和时滞系统matlab相图,给出输入变量的上下界(The matlab phase diagram of the saturated time-delay system is given, and the upper and lower bounds of the input variables are given)
- 2016-09-30 08:04:40下载
- 积分:1
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DVB_S2_LDPC
DVB_S2_LDPC整体累积编码算法文档(DVB_S2_LDPC overall cumulative encoding algorithm document)
- 2012-04-03 01:20:48下载
- 积分:1
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Gray
code for converting colored image to gray
- 2010-05-15 17:52:47下载
- 积分:1
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SOM-Toolbox
Toolbox to implement SOM nural network in matlab
- 2011-06-14 03:37:06下载
- 积分:1
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traffic_simevents123
Vehicle Traffic Patterns at an Intersection (SimEvents)
- 2010-11-18 07:12:00下载
- 积分:1
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face
change from rgb to pgm file, for facial recognition
- 2012-02-12 19:07:05下载
- 积分:1
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MATLAB
abou using matlab to finish the possion process and it also include the iamge
- 2009-06-20 10:24:05下载
- 积分:1
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h
车牌自动识别,用霍夫变换的方法实现车牌倾斜校正(Automatic license plate recognition, license plate tilt correction using the Hough transform method)
- 2012-05-07 17:35:43下载
- 积分:1