证明了无线OFDM系统中由单频偏移引起的ICI的一个简单公式

2007 International Symposium on Intelligent Signal Processing and Communication Systems Pub Date : 2007-11-01 DOI:10.1109/ISPACS.2007.4445843

S. Feng, Han Yubing, Xie Ren-hong, C. Shixin

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引用次数: 0

摘要

单频偏置(SFO)引起的信道间干扰(ICI)的精确表达是归一化SFO (NSFO)的函数。由于该表达式复杂度高，通信工程师不方便使用该表达式计算ICI值。为了减少计算量，我们推导了一些ICI的上界，如Moose和Feng。但是，它们与实际ICI值仍相差约2db。幸运的是，在NSFO小N大的条件下，从数学上证明了这个真实的ICI等于NSFO平方的三分之一。数值模拟进一步表明，当|NSFO|les0.2时，这个恒等式成立。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Proof of a simple formula for ICI caused by single frequency offset in wireless OFDM system

Exact interchannel interference (ICI) expression caused by single frequency offset (SFO) is shown to be a function of normalized SFO (NSFO). Due to its high complexity, it is inconvenient for communication engineer to use this expression to calculate ICI value. Some upper bounds ICI, such as Moose and Feng, has been derived to reduce computational amount. But, they are still about 2 dB difference from real ICI value. Fortunately, this real ICI is proved to equal a third of the square of NSFO from mathematics under the condition that NSFO is small and N large. Numerical simulation further indicates that this identity holds when |NSFO|les0.2.

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2007 International Symposium on Intelligent Signal Processing and Communication Systems

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