University of Oulu

O. L. A. Lopez, N. H. Mahmood, H. Alves, C. M. Lima and M. Latva-aho, "Ultra-Low Latency, Low Energy, and Massiveness in the 6G Era via Efficient CSIT-Limited Scheme," in IEEE Communications Magazine, vol. 58, no. 11, pp. 56-61, November 2020, doi: 10.1109/MCOM.001.2000425

Ultra-ow latency, low energy, and massiveness in the 6G era via efficient CSIT-limited scheme

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Author: López, Onel L. A.1; Mahmood, Nurul H.1; Alves, Hirley1;
Organizations: 1Centre for Wireless Communications (CWC), University of Oulu, Finland
Format: article
Version: accepted version
Access: open
Online Access: PDF Full Text (PDF, 0.7 MB)
Persistent link:
Language: English
Published: Institute of Electrical and Electronics Engineers, 2020
Publish Date: 2021-01-28


Channel state information (CSI) has been a key component in traditional wireless communication systems. This might no longer hold in future networks supporting services with stringent quality of service constraints such as extremely low latency, low energy, and/or large number of simultaneously connected devices, where acquiring CSI would become extremely costly or even impractical. We overview the main limitations of CSI at the transmitter side (CSIT)-based designs toward the 6G era, assess how to design and use efficient CSIT-limited schemes that allow meeting the new and stringent requirements, and highlight some key research directions. We delve into the ideas of efficiently allocating pilot sequences, relying on statistical CSIT and/or using location-based strategies, and demonstrate viability via a selected use case.

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Series: IEEE communications magazine
ISSN: 0163-6804
ISSN-E: 1558-1896
ISSN-L: 0163-6804
Volume: 58
Issue: 11
Pages: 56 - 61
DOI: 10.1109/MCOM.001.2000425
Type of Publication: A1 Journal article – refereed
Field of Science: 213 Electronic, automation and communications engineering, electronics
Funding: This work is partially supported by Academy of Finland 6Genesis Flagship (Grants n.318927, n.319008, n.307492).
Academy of Finland Grant Number: 318927
Detailed Information: 318927 (Academy of Finland Funding decision)
319008 (Academy of Finland Funding decision)
307492 (Academy of Finland Funding decision)
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