A precoding and detection scheme for OFDM based wireless communication system in high-speed environment

Zhang, Ruiqi; Ai, Bo; Yang, Lei; Song, Hua; Li, Zongqiang

doi:10.1109/tce.2014.7027287

Cited by 7 publications

(1 citation statement)

References 17 publications

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“…However, this method assumes that the pattern of ICI, corresponding to the channel variation in time domain, is invariant for all subchannels due to the frequency non-selectivity assumption, which is not the case in a multipath fading channel. To further reduce complexity, the literatures [9,10] studied several precoding techniques at the transmitter. By inserting redundant subcarriers in the frequency domain, ICI is limited in one frequency subband, thereby reducing the dimension of interference suppression.…”

Section: Introductionmentioning

confidence: 99%

A novel channel prediction method for MIMO‐OFDM in high‐speed environment

Zhang

2021

IET Communications

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The OFDM system with multiple transceiver antennas is attractive to increase the spectrum or energy efficiency. Depending on the channel state information (CSI), precoding techniques offer array and multiplexing gain in such systems. However, if terminal equipment is fast moving, the CSI feedback would be outdated when it is applied to data transmission. This paper proposes a novel channel prediction method applicable for high-speed environment. Benefiting from the proposed structure, this method greatly improves the prediction accuracy, and meanwhile retains the low feedback overhead. Numerical results show that the performance of the proposed method outperforms conventional precoding methods in high-speed scenarios.

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Section: Introductionmentioning

confidence: 99%