-
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
-
802.11a_OFDM_MATLAB_simulation
IEEE 802.11a标准，利用matlab进行仿真。包括信道，发射机，接收机，调制，解调，交织，维特比译码，导频(IEEE 802.11a standard, the use of matlab simulation. Including channels, transmitters, receivers, modulation, demodulation, interleaving, Viterbi, Pilot)
- 2008-06-26 17:28:31下载
- 积分：1
-
line
主要是采用matlab语言来实现pcb丝线的纬斜度自动测量(Mainly using the matlab language to realize the PCB silk weft slope automatic measurement
)
- 2013-09-12 14:34:10下载
- 积分：1
-
LTE_common_compute_BLER
LTE系统中误块率BLER的求解计算，BLER是个衡量系统好坏的正确指标(LTE system for solving block error rate BLER calculation, BLER measurement system is good or bad right index)
- 2014-12-02 16:14:27下载
- 积分：1
-
Harris_user
Matlab code to detect Harris corner points in user selected area.
- 2009-06-12 16:02:22下载
- 积分：1
-
matlab-hough
Matlab hough变换示例及程序，比较实用(Matlab hough transform examples and procedures, more practical)
- 2013-03-21 10:19:43下载
- 积分：1
-
codes
Modified LLL (MLLL) Lattice Reduction Algorithm
Original Paper: A Customized Lattice Reduction Multiprocessor for MIMO Detection
by Shahriar Shahabuddin et. al.
- 2015-04-11 05:07:17下载
- 积分：1
-
MOGA
这是一个简单的用matlab编写的多目标遗传算法，可以供初学者参考(This is a simple multi-objective genetic algorithm using matlab, you can reference for beginners)
- 2013-04-04 12:09:30下载
- 积分：1
-
BP
BP神经网络：是一种按误差逆传播算法训练的多层前馈网络，是目前应用最广泛的神经网络模型之一。BP网络能学习和存贮大量的输入-输出模式映射关系，而无需事前揭示描述这种映射关系的数学方程。它的学习规则是使用最速下降法，通过反向传播来不断调整网络的权值和阈值，使网络的误差平方和最小。BP神经网络模型拓扑结构包括输入层（input）、隐层(hide layer)和输出层(output layer)。(BP neural network: a Press the front back propagation algorithm to train multilayer feedforward network is one of the most widely used neural network model. BP network can learn and store large amounts of input- output mode mappings without prior reveal mathematical equations that describe this map. It' s learning rule is to use the steepest descent method, through a reverse spread to constantly adjust the network weights and thresholds, so that the minimum squared error of the network. BP neural network topology, including the input layer (input), hidden layer (hide layer) and output layer (output layer).)
- 2015-03-26 22:32:47下载
- 积分：1
-
LMS
Least Mean Square (LMS) equalizer used in coherent receivers
- 2009-09-07 22:57:07下载
- 积分：1
