This paper proposes a novel channel estimation method for wireless Orthogonal Frequency Division Multiplexing systems.

该文提出了一种新的信道估计算法，用于无线移动信道下的正交频分复用系统。

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OFDMA is based on the idea of frequency-division multiplexing, which is a method to transmit multiple data streams over a channel.

OFDMA是根据频分多路传输系统的思想，这是一种在一个频道上传输多个数据流的方法。

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LTE splits the channel into two parts using frequency-division multiplexing, so the download and upload speeds are better balanced.

LTE则利用频分多路传输系统把频道分成两个部分，所以，下载和上传的速度得以更好地平衡。

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This feat (called wave-division multiplexing, or WDM) was the basis of Ciena's founding.

FORBES: Telltale numbers

Thanks to an engineer's trick called "wave division multiplexing, " a single fiber-optic thread can carry upwards of 10 trillion bits per second.

FORBES: Digital Rules

But old style phone regulations often require network operators to maintain and expand obsolete copper wires and TDM (time division multiplexing) switching technologies.

FORBES: "Phone" Is Just an App; Why Regulate It?