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This a very simple baseband simulator for SC-FDMA system. This simulator is part of the upcoming book “Single Carrier FDMA: A New Air Interface for Long Term Evolution” (Wiley, Nov. 2008) which I co-authored with professor David J. Goodman at Polytec
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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 s
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时变系统的频谱扩展,(信道是平坦的)仿真结果为:滤波后高斯过程的功率谱密度和由滤波器产生的相关高斯序列的时域值-Time-varying system, spread spectrum, (the channel is flat) simulation results as follows: the filtered Gaussian process power spectral density and produced by the filter related to the value of
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参数时变信道的频率选择性和时变性。BPSK符号率=512b/s,采样率=16个采样/s,a1(t) 和a2(t) 为多普勒带宽=16Hz。结果为符号间干扰。-Parameters of time-varying channel frequency selectivity and time-variant. BPSK Symbol Rate = 512b/s, sampling rate = 16 samples/s, a1 (t) and a2 (t) as the Doppler bandwi
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这个程序除了接收机同步、信道编码没有加入外,基本上反映了一个OFDM系统的特性:
1. qpsk/16qam/64qam映射、解映射
2. OFDM调制解调(循环前缀,FFT等)
3. 非整数采样时刻多径时延的多径信道
4. Rayleigh或者Rician多径信道
5. 信道的连续时变(非block fading)
6. 线性插值信道估计
7. FFT变换域插值信道估计-In addition to this program receiver synchroniza
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Flat fading time-varying channel using Jakes Model
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Linear time varying Channel estimation using zero forcing algorithm describes bit error rate and signsl to noise ratio to analyse channel conditions of wireless communications
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CHANNEL ESTIMATION TECHNIQUES FOR
OFDM SYSTEMS IN DISPERSIVE
TIME-VARYING CHANNELS
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Designing spectral e±cient, high-speed wireless links that o® er high quality-
of-service and range capability has been a critical research and engineering chal-
lenge. In this thesis, we mainly address the complexity and performance issues o
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在多径分量数确定的前提下,MIMO-OFDM系统采用传统的基于导频辅助和盲信道估计算法能获得较好性能。实际无线环境中,多径分量数目与幅度都是时变的,则传统信道估计方法不再适用。该文采用随机集理论建模MIMO-OFDM系统信道多径分量数的变化和MIMO信道。基于此模型提出了集中粒子空间重采样方法(CRS),在保留大概率粒子抽样样本的同时主动抛弃小概率抽样样本,以获得更为准确的真实样本逼近。并提出了基于集中重采样Rao-Blackwellised粒子滤波的信道估计方法(RBPFC)。仿真结果表明:所
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wireless scr ipt:
A Distributed Weighted Clustering Algorithm for Mobile Ad Hoc Networks
Simulating Mobile Ad-Hoc Networks in City Scenarios
SOAMANET: A Tool for Evaluating Service-Oriented Architectures on Mobile Ad-Hoc Networks
Time varying
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时变信道下LTE系统基于传输分集的MIMO预编码技术仿真代码,还包括了平坦衰落信道条件下的程序,很值得参考。-Time-varying LTE system is based on channel Transmit Diversity for MIMO precoding simulation code also includes procedures for the flat fading channel conditions , it is worth considering .
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dispersive ofdm channel cir estimation
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Vehicular channel is characterized by non- stationarity and doubly selective nature. The term doubly selective implies that they have both time varying and frequency selective behaviour. The material attached here address this features.
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this matlab code is for channel estimation. when the communication channel is time varying for correct detection of received information you should stimate the communication channel.
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时变信道仿真,适合水下缓慢时变信道,处理有些慢-Time-varying channel simulation code for simulation of underwater want, when you change the channel processing speed is somewhat slow
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用于快时变信道的信道估计算法,基于BEM实现(The channel estimation algorithm for fast time-varying channel is implemented based on BEM)
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