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0331231
- :正交频分复用(OFDM)是第四代移动通信的核心技术。该文首先简要介绍了OFDM基本原理,重点研究了理想同步情 况下,保护时隙(cP)和不同的信道估计方法在高斯信道和多径瑞利衰落信道下对OFDM系统性能的影响。在给出OFDM系 统模型的基础上,用MATLAB语言实现了整个系统的计算机仿真并给出参考设计程序-: orthogonal frequency division multiplexing (OFDM) is the fourth-generation mobile communic
ofdm
- 该程序源代码实现了OFDM通信系统性能的仿真,调制方式有BPSK,QPSK,MSK,QAM,信道为AWGN和Rayleigh信道,并对有插入导频的符合IEEE802.11a的OFDM系统进行了仿真。
Simulation-Performance-Analysis-of-OFDM-System-in-
- 构建了正交频分复用(OFDM)系统的仿真模型,给出了具体信道的参数。在不同信道传输环境下,对不同调制方式和 不同移动速度下的OFDM系统性能进行了分析比较,在仿真结果的基础上给出了OFDM系统抗多普勒频移的参考方案,采 用的信道模型基于ITU - RM. 1225 ChannelB瑞利(Rayleigh)衰落信道。最后,在基于COST 207的信道模型下,对四种典型 环境的OFDM系统进行了仿真研究,并对其结果作了讨论分析。结果表明:在多径衰落信道下,OFDM系统可以有效克服多
OFDMsimulation
- 简要而又完整的OFDM系统仿真,文件中有仿真基于模拟调制的OFDM系统,也有仿真基于FFT变换的OFDM系统,还给了完整的基于IEEE 802.11a标准的OFDM系统仿真,并且分析了单径和多径瑞利衰落信道下的误码性能-Brief but complete OFDM system simulation file OFDM system simulation based on analog modulation, OFDM system simulation based on the FFT, a
OFDM-System
- OFDM System, including pilot, GI, Guard band, rayleigh channel, AWGN, equalization, channel estimation.
OFDM_basic
- 仿真OFDM传输系统,仿真不同的保护间隔的ISI影响,信道为AWGN或多径瑞利衰落信道。-Simulation OFDM transmission system, ISI impact simulation of different guard interval, the channel is AWGN or Rayleigh fading channels.
OFDM_Rayleigh
- 在瑞利衰落信道下的OFDM系统仿真程序,得出信噪比与误码率的相关结果。-OFDM system simulation program in the Rayleigh fading channel, the results of the signal to noise ratio and bit error rate are obtained.
NEURAL-NETWORK-COMPENSATOR
- method based on Neural Network (NN) technique and accompanied with MMSE (Minimum Mean Square Error), which corrects at the receiver level, the Non-Linear (NL) distortions due to the HPA (High Power Amplifier).-In this paper, we present a meth