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OFDM: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-OFDM : Orthogonal Frequency Division Multiplexing (OFDM) is the fourth-generation mobile
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包含OFDM系统仿真,星状导频仿真,瑞利信道估计以及FFT与DFT算法复杂度比较。集合了12个项目,呵呵。-Contains the OFDM system simulation, the astroid pilot frequency simulation, the Rayleigh channel estimates as well as FFT and the DFT algorithm order of complexity compares. Has gathered 12 proje
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Matlab的OFDM在多径Rayleigh信道下的同步
1. 假设频率已同步,设计OFDM一种具体的采用循环前缀进行时间同步方法,用Simulink进行仿真,画出比特信噪比与捕获概率的关系曲线。
2. 设时间已同步,设计OFDM一种具体的采用循环前缀进行频率同步方法,用Simulink进行仿真,画出比特信噪比与频率同步误差的关系曲线.-Matlab-OFDM in multipath Rayleigh channel synchronization 1. Assume th
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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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Matlab file for simulating a cyclic-prefix (CP) orthogonal-frequency-division-multiplexing (OFDM) system with binary phase-shift keying (BPSK) modulation on each subcarrier. CP-OFDM system includes a repetition code and interleaving across subcarrie
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OFDM信道估计MATLAB仿真程序,包含高斯信道和瑞利莱斯衰落信道,算法包括LS,MMSE,LMMSE,ALMMSE等-OFDM channel estimation MATLAB simulation program, including the Gaussian channel Rice and Rayleigh fading channel, algorithms include LS, MMSE, LMMSE, ALMMSE etc.
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BPSK在OFDM系统不同信道下的误码率比较(This is a scr ipt for computing the BER for BPSK in OFDM modulation in the AWGN channel.)
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瑞利衰落信道的分布,描述了信号在进入信道前后的变化(Rayleigh fading channel distribution, describes the signal before and after entering the channel changes)
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在OFDM系统中的瑞利衰落信道分布,描述了信号进入信道前后的变化,误码率对比(The Rayleigh fading channel distribution in the OFDM system describes the change of the signal before and after the channel, the bit error rate comparison)
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在OFDM系统中的瑞利衰落信道分布,描述了信号进入信道前后的变化,误码率对比(The Rayleigh fading channel distribution in the OFDM system describes the change of the signal before and after the channel, the bit error rate comparison)
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matlab prepared cellular automata, Single path or multipath Rayleigh fading channel simulation, Numerical solution of differential equations method.
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基于 MATLAB 对移动通信中的 BPSK、QPSK、16QAM 和 OFDM 基带传输系统进行仿真,分析它们在 AWGN 和 Rayleigh 信道下的误码率性能。重点建立了基于 QPSK 和 16QAM 调制方式下 OFDM 系统的仿真,比较两种调制方式在 Rayleigh 信道下的传输性能,分析了系统模型,提出了代码优化方案。(Based on MATLAB, we simulate the BPSK, QPSK, 16QAM and OFDM baseband transmission
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