Sub-band versus space-delay precoding for wideband mmWave channels
Ramireddy V, Grossmann M, Landmann M, Del Galdo G (2019)
Publication Type: Journal article
Publication year: 2019
Journal
Book Volume: 8
Pages Range: 193-196
Article Number: 8440724
Journal Issue: 1
Abstract
Precoding for frequency-selective multiple-input single output channels is often performed on a sub-band basis in frequency-domain. Such sub-band precoding will also be adopted in the upcoming 3GPP Release 15 New Radio. Exploiting the large available bandwidth at millimeter-Wave (mmWave) frequencies will significantly increase the number of sub-bands, and hence the feedback overhead when sub-band precoding is applied. In this letter, we propose a precoding scheme that exploits the sparsity of mmWave channels by performing precoding in the space-delay domain. It is shown that the proposed precoder outperforms the former in terms of average mutual information and reduces the feedback overhead.
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Germany (DE)How to cite
APA:
Ramireddy, V., Grossmann, M., Landmann, M., & Del Galdo, G. (2019). Sub-band versus space-delay precoding for wideband mmWave channels. IEEE Wireless Communications Letters, 8(1), 193-196. https://doi.org/10.1109/LWC.2018.2866250
MLA:
Ramireddy, Venkatesh, et al. "Sub-band versus space-delay precoding for wideband mmWave channels." IEEE Wireless Communications Letters 8.1 (2019): 193-196.
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