Timing tracking methods in millimeter-wave wireless communications

doi:10.16511/j.cnki.qhdxxb.2017.21.012

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Abstract The timing tracking of millimeter-wave wireless communications is very challenging since the analog to digital converters (ADCs) cannot provide high oversampling on the received signals and the multi-path channel causes tracking problems. Two timing tracking schemes based on twice over-sampled data and the waveform of the correlation values using Farrow interpolation are described in this paper for multi-path channels. The first scheme compensates for the timing error before channel equalization while the other compensates afterwards. Simulations show that with a timing error of 20×10^-6 and a bit error rate (BER) of 10^-5, the difference in the signal-to-noise ratios (SNRs) between these two systems and a system with no timing error is about 2.5 dB less than with the Rummler channel. Thus, both schemes provide good timing tracking for multi-path channels.

Keywords millimeter-wave wireless communications E-band multi-path channels timing tracking methods frequency domain equalization (FDE)

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TN928

Issue Date: 15 January 2017

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	NIU Yong
	FENG Ziqi
	LI Yong
	JIN Depeng
	SU Li

Cite this article:

NIU Yong,FENG Ziqi,LI Yong, et al. Timing tracking methods in millimeter-wave wireless communications[J]. Journal of Tsinghua University(Science and Technology), 2017, 57(1): 61-66.

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http://jst.tsinghuajournals.com/EN/10.16511/j.cnki.qhdxxb.2017.21.012 OR http://jst.tsinghuajournals.com/EN/Y2017/V57/I1/61

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