Description: This example of multiwall model for indoor propagation model. Click on the location of transmitter and press enter,then path loss colour map will shown in figure-This is example of multiwall model for indoor propagation model. Click on the location of transmitter and press enter,then path loss colour map will shown in figure Platform: |
Size: 32768 |
Author:chang |
Hits:
Description: 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 pulse, which is satisfied the UWB signal
definition and Federal Communications Commission (FCC) indoor
limit spectral mask, is used as the UWB excitation signal. Platform: |
Size: 339968 |
Author:baba |
Hits:
Description: 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 pulse, which is satisfied the UWB signal
definition and Federal Communications Commission (FCC) indoor
limit spectral mask, is used as the UWB excitation signal. Platform: |
Size: 3072 |
Author:baba |
Hits:
Description: 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 Channels
canal3: Constrained Band Selection for Hyperspectral Imagery
canal4: Eigen Analysis of Wide-Band Fading Channel Impulse Responses
canal5: An Overview of Ultra Wide Band Indoor Channel Measurements and Modeling Platform: |
Size: 3688448 |
Author:ahla |
Hits:
Description: The main objective of the project was to address the above
mentioned trends and to form a consistent concept of an All-IP telecommunications
network with wireless access. The project took into account both the user’ s and the
network’ s perspectives. In particular, the following areas have been addressed:
• existing implementations and concepts of All-IP wireless networks
• resource allocation and management in wireless systems, both existing and
planned
14
• traffic management and modelling, with special focus paid to the IP-based
services
• modelling for radio wave propagation
• positioning in wireless systems, especially for indoor environment
• network architectures and configurations, including mobile solutions
• dependability studies
• human-technology interaction.-The main objective of the project was to address the above
mentioned trends and to form a consistent concept of an All-IP telecommunications
network with wireless access. The project took into account both the user’ s and the
network’ s perspectives. In particular, the following areas have been addressed:
• existing implementations and concepts of All-IP wireless networks
• resource allocation and management in wireless systems, both existing and
planned
14
• traffic management and modelling, with special focus paid to the IP-based
services
• modelling for radio wave propagation
• positioning in wireless systems, especially for indoor environment
• network architectures and configurations, including mobile solutions
• dependability studies
• human-technology interaction. Platform: |
Size: 3672064 |
Author:Tekaya |
Hits:
Description: 移动传播环境:理论基础分析方法和建模技术
杨大成编著 内容包括：理论分析移动传播环境所常用的概率论、随机过程及矩阵等基础知识；地球表面均匀大气中的电波传播、室外传播模型，室内无线传播及覆盖，小尺度衰落信道，标量信道建模及其仿真，矢量信道建模及其仿真等。
-Mobile communication environment: theory analysis and modeling Yang Dacheng edited include: theoretical analysis are commonly used in mobile communication environment, probability theory, stochastic processes, and basic knowledge of matrix Earth' s surface wave propagation even in the atmosphere, outdoor propagation model, indoor wireless transmission and coverage, small-scale fading channel, the scalar channel modeling and simulation, vector channel modeling and simulation. Platform: |
Size: 3700736 |
Author:鼻涕虫 |
Hits:
Description: This tutorial survey paper reviews the radio propagation channels in indoor environments.-Indoor radio propagation channel Platform: |
Size: 2533376 |
Author:di |
Hits:
Description: 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，如果存在直达径，相关性会上升到0.4-0.5。此外，室外室内的测量结果都可以证明Jake模型关于入射角分布假设的合理性。当天线间距在1个载波波长增大到10个载波波长时，天线相关性在0.05-0.4之间。
SIMO信道探测系统能够揭示B3G信道的很多特征，但不能够全面、充分的分析和评估B3G信道。在后续工作中，我们将进一步改进这个测试系统，对B3G系统作更深入的研究。
参考-Aided by a 1-Tx and 2-Rx system working in 3.5GHz frequency and 20MHz bandwidth, JSI-MTLab studied the classic B3G urban wireless propagation environment of China and the classic indoor channel propagation environment through a recent indoor and outdoor wireless propagation measurement. A new path loss exponent is proposed in such band while the general outdoor model of path loss is verified. Also, the statistic results of RMS excess delay, max excess delay and mean excess delay in both indoor and outdoor scenarios are given. The lag-time domain and time-frequency domain channel responses are analyzed. At the end, the results of correlation of different propagation environment in the singular cell and antenna correlation are given as well as the phenomenon being analyzed and explained. Platform: |
Size: 159744 |
Author:xuchen |
Hits:
Description: 通过将IR-UWB 穿墙测距NLOS 误差建模为由空间结构导致的几何距离误差和脉冲信号波形失真导致的峰值偏移误差．依据高频射线理论推导了基于收发节点距离和墙体参数的几何距离误差限． 通过对IR-UWB 信号穿墙透射机理的建模，研究了频率依赖性导致的波形失真问题及相应的TOA 测距误差．仿真结果表明，几何距离误差主要由墙体障碍物参数决定，受收发节点间距离的影响不大 IR-UWB 信号穿墙传播会发生波形畸变，墙体的非均匀性和相对介电常数越大，波形畸变越严重，由此导致的TOA 相关峰值偏移误差维持在脉冲信号距离分辨率范围内．-As the TOA ranging error was always corrupted by the direct path blockage and excess delay in
complicated indoor environments，the NLOS ranging error due to IR-UWB through wall propagation was modeled
by dividing it into two parts: the geometrical error caused by the pulse transmitted through wall，and the
peak biased error caused by the pulse waveform distortion due to frequency dependence of huge bandwidth．
The theoretical geometrical error bound was derived from transceiver distance，wall thickness and materials．
The IR-UWB through wall propagation was modeled using sub-band method，and the peak biased errors were
investigated through the waveform distortion of IR-UWB signal propagated in different wall structures． The simulation
results show that the geometrical error was mainly determined by the obstacles parameters and the peak biased errors caused by IR-UWB waveform distortions were within the distance resolution of IR-UWB signal． Platform: |
Size: 281600 |
Author:丁龙 |
Hits:
Description: Using the impulse response modeling of the
indoor radio channel, the results of extensive multipath propagation measurements at two office buildings are reported Platform: |
Size: 390144 |
Author:KIKI |
Hits:
Description: A Statistical Ultra-Wideband Indoor Channel Model
and the Effects of Antenna Directivity on Path Loss
and Multipath Propagation Platform: |
Size: 336896 |
Author:KIKI |
Hits:
Search - propagation indoor