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Prototyping of Singular Value Reconstruction Precoding for Reliable Non-Orthogonal IoT Signals

Xu, T; Darwazeh, I; (2019) Prototyping of Singular Value Reconstruction Precoding for Reliable Non-Orthogonal IoT Signals. In: Proceedings of IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC. IEEE: Istanbul, Turkey,. Green open access

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Abstract

Massive connectivity is one of the main research directions for beyond 5G. The cellular based narrowband IoT (NB-IoT), enabled by the orthogonal frequency division multiplexing (OFDM) signal, is an important technique. To evolve into the beyond 5G era, non-orthogonal concepts are preferred to re-shape the NB-IoT to provide higher spectral efficiency, wider coverage and lower power consumed services. This work investigates a non-orthogonal waveform in next generation IoT (NG-IoT) scenarios. Previous work has verified the advantages of zero forcing (ZF) precoding in interference mitigation but with some limitations. This work proposes a singular value reconstruction (SVR) precoding method, which can improve the precoding reliability and greatly reduce noise sensitivity. Simulations show significant spectral efficiency gain when compared with the previous work. An experiment platform is then configured in an over-the-air multiuser multiple input multiple output (MIMO) scenario to verify the practical feasibility of the precoding algorithm.

Type: Proceedings paper
Title: Prototyping of Singular Value Reconstruction Precoding for Reliable Non-Orthogonal IoT Signals
Event: 2019 IEEE 30th Annual International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC)
Open access status: An open access version is available from UCL Discovery
DOI: 10.1109/PIMRC.2019.8904340
Publisher version: https://doi.org/10.1109/PIMRC.2019.8904340
Language: English
Additional information: This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions.
Keywords: Prototyping, precoding, multiuser, MIMO, nonorthogonal, IoT, NB-IoT, waveform, reliable communications, software defined radio.
UCL classification: UCL
UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Electronic and Electrical Eng
URI: https://discovery.ucl.ac.uk/id/eprint/10092018
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