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.
Involved external institutions
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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