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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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在高斯与一径瑞利衰落信道下对OFDM系统(QPSK调制)的功率普的仿真-in Gaussian with a Rayleigh fading channel right OFDM system (QPSK) Pu Power Simulation
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scr ipt for computing the BER for BPSK modulation in a
Rayleigh fading channel with 2 Tx, 2Rx MIMO channel
Zero Forcing Equalization with Successive Interference
Cancellation (ZF-SIC)-scr ipt for computing the BER for BPSK modulation in a
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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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Though the total channel is a frequency selective channel, the channel experienced by each subcarrier in an OFDM system is a flat fading channel with each subcarrier experiencing independent Rayleigh fading.
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这是一个在瑞利信道下,用训练符号进行信道估计的OFDM调制解调程序-This is a in Rayleigh fading, the training symbols to estimate the channel OFDM modulation and demodulation process
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A Hybrid Orthogonal Frequency Division Multiplexing & Code-Division Multiple-Access (OFDM-CDMA)
This is a simulation program for uncoded OFDM-CDMA system with QPSK modulation
and Complex channel modelled by Rayleigh fading. The program is modifie
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This a simulation program for uncoded OFDM-IDMA system with SFBC coding and channel modelled by Rayleigh fading. The program is modified based on Interleave-Division Multiple-Access (IDMA) in the transmitter and
Iterative chip-by-chip multiuser de
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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(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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