Improved Channel Estimation and Equalization for Single-Carrier IEEE 802.11ad Receivers
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Date
2023-09
Authors
Baruffa, G.
Rugini, L.
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Referee
Mark
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Společnost pro radioelektronické inženýrství
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Abstract
IEEE 802.11ad uses mmWave technology for multi-gigabit wireless access networks. Multipath with large delay spread severely reduces performance due to insufficient guard interval. In this paper, we improve single-carrier IEEE 802.11ad receivers by proposing channel estimation and equalization methods for a frequency domain equalizer. Channel estimation is improved by leveraging on sparsity of the channel impulse response, while equalization is combined with an interference cancellation algorithm. The log-likelihood ratio demapper is also improved by correct power estimation of signal, interference, and noise. Simulation results show that the proposed methods are effective on channels whose length exceeds the guard interval.
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Citation
Radioengineering. 2023 vol. 32, č. 3, s. 438-450. ISSN 1210-2512
https://www.radioeng.cz/fulltexts/2023/23_03_0438_0450.pdf
https://www.radioeng.cz/fulltexts/2023/23_03_0438_0450.pdf
Document type
Peer-reviewed
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en