Non-Coherent Open-Loop MIMO Communications Over Temporally-Correlated Channels

This paper investigates the use of non-coherent communication techniques for open-loop transmission over temporally-correlated Rayleigh-fading MIMO channels. These techniques perform data detection without knowing the instantaneous channel coefficients. Three non-coherent Multiple Input Multiple Out...

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Bibliographic Details
Published in:IEEE access 2016, Vol.4, p.6161-6170
Main Authors: Cabrejas, Jorge, Roger, Sandra, Calabuig, Daniel, Fouad, Yaser M. M., Gohary, Ramy H., Monserrat, Jose F., Yanikomeroglu, Halim
Format: Article
Language:English
Subjects:
Antennas
Channels
Coherence
Communication
differential space-time block code
Differential unitary space-time modulation
Grassmannian signaling
MIMO
MIMO communication
Modulation
Non-coherent communications
Rayleigh channels
Spacetime
Temporal correlation
Training
Transmitting antennas
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Summary:This paper investigates the use of non-coherent communication techniques for open-loop transmission over temporally-correlated Rayleigh-fading MIMO channels. These techniques perform data detection without knowing the instantaneous channel coefficients. Three non-coherent Multiple Input Multiple Output (MIMO) schemes, namely, differential unitary space-time modulation, differential space-time block code, and Grassmannian signaling, are compared with several state-of-the-art training-based coherent schemes. This paper shows that the non-coherent schemes are meaningful alternatives to training-based communication, specially as the number of transmit antennas increases. In particular, for more than two transmit antennas, non-coherent communication provides a clear advantage in medium to high mobility scenarios.
ISSN:2169-3536
2169-3536
DOI:10.1109/ACCESS.2016.2580680