FBMC Receiver Design and Analysis for Medium and Large Scale Antenna Systems
Citation:
Hamed Hosseiny and Arman Farhang and Behrouz Farhang-Boroujeny, FBMC Receiver Design and Analysis for Medium and Large Scale Antenna Systems, IEEE Transactions on Vehicular Technology, 71, 3, 2022, 3044 - 3057, 1--1Download Item:
Abstract:
In this paper, we design receivers for filter bank multicarrier-based (FBMC-based) massive MIMO considering practical aspects such as channel estimation and equalization. In particular, we propose a spectrally efficient pilot structure and a
channel estimation technique in the uplink to jointly estimate all the users’ channel impulse responses. We mathematically
analyze our proposed channel estimator and find the statistics of the channel estimation errors. These statistics are incorporated into our proposed equalizers to deal with the imperfect channel state information (CSI) effect. We revisit the channel equalization problem for FBMC-based massive MIMO, address the shortcomings of the existing equalizers in the literature, andmake them more applicable to practical scenarios. The proposed receiver in this paper consists of two stages. In the first stage, a linear combining of the received signals at the base station (BS) antennas provides a coarse channel equalization and removesany multiuser interference. In the second stage, a per subcarrier fractionally spaced equalizer (FSE) takes care of any residual distortion of the channel for the user of interest. We propose an FSE design based on the equivalent channel at the linear combiner output. This enables the applicability of our proposed technique to small and/or distributed antenna setups such as cell-free massive MIMO. Finally, the efficacy of the proposed techniques is corroborated through numerical analysis.
Sponsor
Grant Number
Science Foundation Ireland (SFI)
19/FFP/7005
Author's Homepage:
http://people.tcd.ie/afarhangDescription:
PUBLISHED
Author: Farhang, Arman
Type of material:
Journal ArticleSeries/Report no:
IEEE Transactions on Vehicular Technology71
3
Availability:
Full text availableKeywords:
FBMC, Multiuser, Time domain channel estimation, Equalization, Massive MIMO, Distributed antenna, Cell-freeSubject (TCD):
TelecommunicationsDOI:
http://dx.doi.org/10.1109/tvt.2022.3144633ISSN:
0018-9545Metadata
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