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教学实验源代码,提供对滑动窗口协议的实验演示,协议分层和协议软件的设计与实现有基本的认识利用所学数据链路层原理,自己设计一个滑动窗口协议并在仿真环境下编程实现有噪音信道环境下的
可靠的双工通信。信道模型为 8000bps 全双工卫星信道,信道传播时延 270 毫秒,信道误码率为 10-5,信道提供字节流传输服务,网络层分组长度在240~256字节范围,Teaching experiment source code, on the Sliding Window Protocol provides
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数据链路层的选择性重传协议的编写。在仿真环境下编程实现有噪音信道环境下
两站点之间无差错双工通信。信道模型为8000bps 全双工卫星信道,信道传播时延270毫秒,信道误码率
为10-5,信道提供字节流传输服务,网络层分组长度固定为256字节-The data link layer selective retransmission protocol preparation. In the simulation environment, programming environment,
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无线信道阴影效应和多径效应的MATLAB仿真程序,来自 Modeling the Wireless Propagation Channel-Shadowing and Multipath
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无线通信中微蜂窝和微微蜂窝信道的MATLAB建模-Propagation in Microcells and Picocells
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In wireless communications, fading is deviation of the attenuation that a carrier-modulated telecommunication signal experiences over certain propagation media. The fading may vary with time, geographical position and/or radio frequency, and is often
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把地理区域分成一个个小区,蜂窝系统在该区域内提供无线覆盖。把可用的频谱分成很多信道,每个小区分配一组信道。使用频分双工(FDD)。在小区间进行频率利用,N个小区构成一个簇,簇间进行频率复用。定义了传播特性(信道参数)以及同频小区的位置。信道的参数包括:小区半径,路径损耗指数,以分贝为单位的对数正态阴影的标准差,基站发射功率级,移动台发射功率级,每个小区的扇区数,扇区化天线的正反向比,要仿真的瞬时位置的组数,同频干扰阈值。-To a geographical area is divided int
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窄带多径信号的matlab仿真,Modeling the wireless Propagation channel code-Narrow-band multi-path signals in matlab simulation, Modeling the wireless Propagation channel code
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LDPC码在基于BP (Belief Propagation) 的迭代译码相结合的条件下具有逼近Shannon 限的性能,是继turbo 码后在纠错编码领域又一重大进展。压缩文件中给出了LDPC在高斯信道下的c程序。-LDPC codes based on BP (Belief Propagation) Iterative Decoding of combining conditions with performance approaching Shannon limit on the heel
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瑞利衰落信道(Rayleigh fading channel)是一种无线电信号传播环境的统计模型。这种模型假设信号通过无线信道之后,其信号幅度是随机的,即“衰落”,并且其包络服从瑞利分布。-Rayleigh fading channel (Rayleigh fading channel) is a radio signal propagation environment, the statistical model. The model assumed that after the signal
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利用数据链路层原理,设计一个滑动窗口协议并在仿真环境下编程实现有噪音信道环境下的可靠的双工通信。信道模型为8000bps 全双工卫星信道,信道传播时延270 毫秒,信道误码率为10-5,信道提供字节流传输服务,网络层分组长度在240~256字节范围。-Data link layer using the principle of a sliding window protocol design and simulation environment in the programming channe
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Source code of matlab for the ebook-Modeling the Wireless Propagation Channel:A Simulation Approach with MATLAB1
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This project simulates the operation of wireless digital communications using Q-PSK and 8PSK modulator.
The project consists of four steps: transmitter design, channel propagation effect, receiver design and finally measuring system performance.
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水下ns2 UnderWaterMiracle: Underwater Channel, PHY and MAC for NS-MIRACLE .-UnderWaterMiracle: Underwater Channel, PHY and MAC for NS-MIRACLE .
escr iption: we have developed a module for ns-miracle that allows a fully detailed simulation of the unde
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In this paper, a two-dimensional (2-D) transverse
magnetic (TM) mode finite difference time domain (FDTD)
method is used to simulate the indoor radio wave propagation
and model the indoor ultra wideband (UWB) channel. The
modulated Gaussian p
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five papers( transactions and review)talking about the propagation channel:
canal1: Modeling of Wide-Band MIMO Radio Channels Based on NLoS Indoor Measurements.
canal2: Reliable Channel Regions for Good Binary Codes Transmitted Over Parallel Chan
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本书是关于无线衰落信道方面的一本好书,书中内含MATLAB代码!
-All relevant components of a mobile radio system, from digital modulation techniques over channel coding through to network aspects, are determined by the propagation characteristics of the channel. Therefore, a pr
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propagation channel modelling and time series systhesizers for the simulation of satellite communication systems.PDF
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RF propagation measurement in vehicle to vehicle communication
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在3.49-3.51GHZ频段内的典型中国城市环境下,地面信号衰落仍服从经典的指数对数分布。在中度误差(σx =10.291)下,路损指数在3.1-3.7之间。半径2公里的小区内,RMS时延在3-4微秒之间;典型的办公室环境中,存在直达径时RMS时延小于0.1微秒。在城市环境中,多径现象很明显,主要由高层建筑物引起,并以簇的方式存在。在城市中低速移动条件下(接收机移动速度小于100 Km/h)某一强径的生存时间通常超过10分钟,但相对到达时间会发生滑动。单一小区内的传播环境具有一定相关性,如果存
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The Wireless Channel Propagation
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