Pilot Allocation and Computationally Efficient Non-Iterative Estimation of Phase Noise in OFDM

Syrjälä, Ville; Levanen, Toni; Ihalainen, Tero; Valkama, Mikko (2019-04)
 
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Syrjälä, Ville
Levanen, Toni
Ihalainen, Tero
Valkama, Mikko
04 / 2019

IEEE Wireless Communications Letters
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doi:10.1109/LWC.2018.2890665
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https://urn.fi/URN:NBN:fi:tuni-202001151301

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Peer reviewed
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This letter proposes a pilot subcarrier allocation approach for orthogonal frequency division multiplexing systems, which enables construction of symbol-wise phase-noise (PN) estimates with high efficiency and low overhead in a non-iterative manner. The complexity and performance of the overall PN suppression algorithm together with the proposed pilot allocation approach are evaluated in 5G single-user-multiple-input multiple-output (MIMO) and multi-user-MIMO radio links at 28 GHz carrier frequency, showing clear complexity-performance benefits against a state-of-the-art reference algorithm.
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