Performance Analysis of Frequency Domain Precoding Time-Reversal MISO OFDM Systems
(2020) IEEE Communications Letters — Vol. 24, n° 1, p. 48-51 (2020)
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- Abstract
- Time reversal (TR) recently emerged as an interesting communication technology capable of providing a good spatio-temporal signal focusing effect. New generations of large-bandwidth devices with reduced cost leverage the use of TR wideband communication systems. TR can easily be integrated into an orthogonal frequency-division multiplexing (OFDM) system by precoding the signal in the frequency domain. In this letter, we first extend the frequency-domain TR precoding to rate back-off factors (BOFs) different than one. We secondly derive a closed-form mean-square-error (MSE) expression of the received equalized symbols as a function of the BOFs and the number of antennas. The derived MSE formula is validated numerically with Rayleigh fading channels.
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Nguyen, T.-H., Monfared, S., Determe, J.-F., Louveaux, J., De Doncker, P., & Horlin, F. (2020). Performance Analysis of Frequency Domain Precoding Time-Reversal MISO OFDM Systems. IEEE Communications Letters, 24(1), 48-51. https://hdl.handle.net/2078.5/248003 (Original work published 2020)