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OFDM正交多载波传输技术具有抗无线传输多径效应影响的能力,正逐步成为各种宽带无线数字传输系统-OFDM Orthogonal multi-carrier transmission technology with anti-multipath effects of wireless transmission capacity, is becoming a variety of broadband wireless digital transmission system
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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。最后给出在不同的信道条件下,保
护时隙、信道估计方法对OFDM系统误码率影响的比较曲线,得出了较理想的结论。-Orthogonal frequency division mult
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重点研究
了低信噪比﹑多径瑞利衰落信道条件下,基于高阶累积量的OFDM信号盲识别技
术。提出了利用奇数阶累积量区分OFDM信号与单载波信号的方法,并对基于三
阶和五阶累积量的算法进行了仿真分析。
-﹑ Focus on the low SNR multipath Rayleigh fading channel conditions, based on cumulant OFDM signal blind identification technology. Made a dist
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Orthogonal Frequency Division Multiplexing (OFDM)
systems are more sensitive to timing and frequency offsets than
single carrier systems. This Paper presents a method of joint time
and frequency synchronization for OFDM systems. The
synchroni
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0下载:
Orthogonal Frequency Division Multiplexing (OFDM)
systems are more sensitive to timing and frequency offsets than
single carrier systems. This Paper presents a method of joint time
and frequency synchronization for OFDM systems. The
synchroni
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0下载:
Orthogonal Frequency Division Multiplexing (OFDM)
systems are more sensitive to timing and frequency offsets than
single carrier systems. This Paper presents a method of joint time
and frequency synchronization for OFDM systems. The
synchroni
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Orthogonal Frequency Division Multiplexing (OFDM) is a multicarrier modulation and multiplexing technique
proposed for 3G, 4G LTE-A systems to achieve higher data rates with better spectral efficiency at low latency. Time
varying nature of the wi
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Synchronization in OFDM
With its robustness against multipath fading, orthogonal
frequency division multiplexing (OFDM) has become
the modulation of choice for many modern wireless standards.
However, OFDM is very sensitive to offsets in f
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Bit Error Rate Performance of BPSK Modulation and OFDM-BPSK with Rayleigh Multipath Channel. M. Divya. International Journal of Engineering and Advanced Technology (IJEAT). ISSN: 2249 – 8958, Volume-2, Issue-4, April32
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