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Faster-than-Nyquist Single-Carrier MIMO Signaling

Authors: Michael McGuire; Alexandros Dimopoulos; Mihai Sima;

Faster-than-Nyquist Single-Carrier MIMO Signaling

Abstract

Faster-Than-Nyquist (FTN) signaling is created when a digital communications signal has an occupied bandwidth less than the symbol rate. It has been previously demonstrated that FTN signals can achieve bit error rates near that of full-bandwidth signaling for BPSK and 4-QPSK modulation. Iterative frequency domain equalization allows for low cost receivers. This paper presents FTN signaling for Multiple-Input/Multiple-Output (MIMO) signals where a Single-Carrier (SC) MIMO signal is converted to the frequency domain and its occupied bandwidth is reduced by removing some of the frequency components before conversion back to the time domain. A previously proposed Single-Input/Single-Output FTN iterative receiver algorithm is extended for FTN SC-MIMO signals. Singular Value Decompositions (SVD) are proactively performed on the channel transfer matrices to reduce the computation cost of the iterative receiver. It is demonstrated that the Bit Error Rate (BER) performance of this MIMO FTN scheme is near that of full bandwidth MIMO signals with a low cost receiver algorithm. The signalling is robust to the selection of the frequency components that are nulled.

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
13
Top 10%
Top 10%
Top 10%
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