Description: a new method for identification of fast fading mobile channels. Estimates both the channel statistics and the time varying channel impulse respone on -line. -a new method for identification of fast fading mobile channels. Estimates both the channel statistics and the time varying channel impulse respone on-line. Platform: |
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Author:karti |
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Description: it is a full project report on Performance Analysis of Spatial Channel Model in fast fading Platform: |
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Author:Anoop Agarwal |
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Description: 这些论文中描述了在快衰落信道中如何改进算法效率，使小区间切换迅速准确。-The paper describes the fast fading channel, how to improve the efficiency of the algorithm, the area quickly and accurately switch between. Platform: |
Size: 858112 |
Author:lianwenzhao |
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Description: 本程序用MATLAB对ZF,MMSE，SIC进行了快衰落信道的检测算法仿真。调制用的是BPSK，对初学3G的同志们来说很实用-This procedure using MATLAB to ZF, MMSE, SIC conducted a fast fading channel detection algorithm simulation. Modulated using BPSK, 3G comrades for beginners is very useful Platform: |
Size: 6144 |
Author:孔超波 |
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Description: 这篇文章主要讲述了等离子鞘套的信道特征，包括电子密度的分布还有以此关于天线位置的安装等问题，得出结论可以建模为快衰落的莱斯信道，对于临近空间飞行器的通信问题提供了理论依据，但鞘套内部通信特征还是一大问题-This article describes the plasma sheath channel characteristics, including the distribution of electron density and thus the installation of the antenna position on issues such as the conclusion can be modeled as fast fading fading channels, for the approaching spacecraft communications problem provides a theoretical basis, but features an internal communication sheath or a big problem Platform: |
Size: 214016 |
Author:朱从莹 |
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Description: 连续导频正弦波通过存在Doppler频移的快衰落信道复模型（基带等效模型）的构造-Continuous pilot frequency sine wave by the presence of Doppler shift fast fading channel model (complex baseband equivalent model) structure
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Size: 5120 |
Author:dabao |
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Description: 连续导频正弦波通过存在Doppler频移的快衰落信道复模型（基带等效模型）的构造-Continuous pilot frequency sine wave by the presence of Doppler shift fast fading channel model (complex baseband equivalent model) structure Platform: |
Size: 5120 |
Author:verktfi |
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Description: This Matlab Code models a Rayleigh fading channel using a modified Jakes channel model.
A modified Jakes model chooses slightly different spacings for the scatterers and scales their waveforms using Walsh–Hadamard sequences to ensure zero cross-correlation.
\alpha_n = \frac{\pi(n-0.5)}{2M} and \beta_n = \frac{\pi n}{M},
results in the following model, usually termed the Dent model or the modified Jakes model:
R(t,k) = \sqrt{\frac{2}{M}} \sum_{n=1}^{M} A_k(n)\left( \cos{\beta_n} + j\sin{\beta_n} \right)\cos{\left(2\pi f_d t \cos{\alpha_n} + \theta_{n}\right)}.
The weighting functions A_k(n) are the kth Walsh–Hadamard sequence in n. Since these have zero cross-correlation by design, this model results in uncorrelated waveforms. The phases \,\!\theta_{n} are initialized randomly and have no effect on the correlation properties. Matlab fast Walsh-Hadamard transform function is used to efficiently generate samples using this model.-This Matlab Code models a Rayleigh fading channel using a modified Jakes channel model.
A modified Jakes model chooses slightly different spacings for the scatterers and scales their waveforms using Walsh–Hadamard sequences to ensure zero cross-correlation.
\alpha_n = \frac{\pi(n-0.5)}{2M} and \beta_n = \frac{\pi n}{M},
results in the following model, usually termed the Dent model or the modified Jakes model:
R(t,k) = \sqrt{\frac{2}{M}} \sum_{n=1}^{M} A_k(n)\left( \cos{\beta_n} + j\sin{\beta_n} \right)\cos{\left(2\pi f_d t \cos{\alpha_n} + \theta_{n}\right)}.
The weighting functions A_k(n) are the kth Walsh–Hadamard sequence in n. Since these have zero cross-correlation by design, this model results in uncorrelated waveforms. The phases \,\!\theta_{n} are initialized randomly and have no effect on the correlation properties. Matlab fast Walsh-Hadamard transform function is used to efficiently generate samples using this model. Platform: |
Size: 2048 |
Author:Manzar Hussain |
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Description: 关于ofdm的信道估计方法研究的相关期刊论文，有慢衰落和快衰落信道下的研究。-Papers related to research on ofdm channel estimation method, there is a slow fading and fast fading channel under study. Platform: |
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Author:张扬 |
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Description: Abstract—Diagonal Bell Laboratories Layered Space-Time (DBLAST)
structure offers a low complexity solution to realize the
attractive capacity of Multiple-input and multiple-output (MIMO)
systems. In this paper, we apply D-BLAST in orthogonal frequency
division multiplexing (OFDM) systems and address the issue of
channel estimation. Different other MIMO-OFDM, where
symbols at all tones are always available for decision-directed
channel estimation, in D-BLAST OFDM, we update estimated
channel parameters each time a layer is detected with a least
square (LS) approach, using a pieced combination of received signals
at previous and current OFDM blocks. The initial estimate is
further refined by a robust estimator to exploit the time correlation
of channel parameters among OFDM blocks. Computer simulation
results show the performance improvement over block-wise
channel estimation. It is also shown that D-BLAST with proposed
channel estimation is robust to fast fading of channel parameters.-Abstract—Diagonal Bell Laboratories Layered Space-Time (DBLAST)
structure offers a low complexity solution to realize the
attractive capacity of Multiple-input and multiple-output (MIMO)
systems. In this paper, we apply D-BLAST in orthogonal frequency
division multiplexing (OFDM) systems and address the issue of
channel estimation. Different other MIMO-OFDM, where
symbols at all tones are always available for decision-directed
channel estimation, in D-BLAST OFDM, we update estimated
channel parameters each time a layer is detected with a least
square (LS) approach, using a pieced combination of received signals
at previous and current OFDM blocks. The initial estimate is
further refined by a robust estimator to exploit the time correlation
of channel parameters among OFDM blocks. Computer simulation
results show the performance improvement over block-wise
channel estimation. It is also shown that D-BLAST with proposed
channel estimation is robust to fast fading of channel parameters. Platform: |
Size: 80896 |
Author:werad |
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Description: 连续导频正弦波通过存在Doppler频移的快衰落信道复模型（基带等效模型）的构造-Continuous pilot frequency sine wave by the presence of Doppler shift fast fading channel model (complex baseband equivalent model) structure Platform: |
Size: 6144 |
Author:fx91291766miba |
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Description: 该程序是一个比较完整的MATLAB程序,它能实于基于导频的OFDM信道估计,包括慢衰落及快衰落信道的估计.(The program is a more complete MATLAB program, it actually made in the pilot-based OFDM channel estimation, including the slow fading and fast fading channel estimation.) Platform: |
Size: 11264 |
Author:petcat |
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Search - fast fading channel