A Novel Preamble Design for Time Synchronization in OFDM-Based Multiple Numerologies

Hakkeon Lee; Hyunsoo Kim; Sungmook Lim; Daesik Hong

doi:10.1109/VTCFall.2018.8691018

A Novel Preamble Design for Time Synchronization in OFDM-Based Multiple Numerologies

Hakkeon Lee, Hyunsoo Kim, Sungmook Lim, Daesik Hong

Department of Electrical and Electronic Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

1 Citation (Scopus)

Abstract

5G New Radio is expected to employ multiple nu-merologies where diverse subcarrier spacings coexist to satisfy the requirements and channel characteristics of users. Since conventional autocorrelation-based time synchronization methods are designed for orthogonal frequency division multiplexing (OFDM) systems with a single numerology, they cannot be applied in OFDM-based multiple numerologies. We propose a new preamble structure for use in OFDM system with multiple numerologies. The proposed preamble is generated by overlapping multiple preamble components which have a repetitive structure and an amplified cyclic prefix. With these features, a different time metric corresponding to each numerology can be independently obtained from the proposed preamble. Then, each user can perform time synchronization process with the system parameter corresponding to their numerology, regardless of other user's numerology.

Original language	English
Title of host publication	2018 IEEE 88th Vehicular Technology Conference, VTC-Fall 2018 - Proceedings
Publisher	Institute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)	9781538663585
DOIs	https://doi.org/10.1109/VTCFall.2018.8691018
Publication status	Published - 2018 Jul 2
Event	88th IEEE Vehicular Technology Conference, VTC-Fall 2018 - Chicago, United States Duration: 2018 Aug 27 → 2018 Aug 30

Publication series

Name	IEEE Vehicular Technology Conference
Volume	2018-August
ISSN (Print)	1550-2252

Conference

Conference	88th IEEE Vehicular Technology Conference, VTC-Fall 2018
Country	United States
City	Chicago
Period	18/8/27 → 18/8/30

Bibliographical note

Funding Information:
This work was supported in part by the National Research Foundation of Korea(NRF) grant funded by the Korea government (No. 2018R1A2A1A05021029) and in part by Institute for Information & communications Technology Promotion(IITP) grant funded by the Korea government(MSIP) (No. 2016-0-00181, Development on the core technologies of transmission, modulation and coding with low-power and low-complexity for massive connectivity in the IoT environment)

All Science Journal Classification (ASJC) codes

Computer Science Applications
Electrical and Electronic Engineering
Applied Mathematics

Access to Document

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Lee, H., Kim, H., Lim, S., & Hong, D. (2018). A Novel Preamble Design for Time Synchronization in OFDM-Based Multiple Numerologies. In 2018 IEEE 88th Vehicular Technology Conference, VTC-Fall 2018 - Proceedings [8691018] (IEEE Vehicular Technology Conference; Vol. 2018-August). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/VTCFall.2018.8691018

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abstract = "5G New Radio is expected to employ multiple nu-merologies where diverse subcarrier spacings coexist to satisfy the requirements and channel characteristics of users. Since conventional autocorrelation-based time synchronization methods are designed for orthogonal frequency division multiplexing (OFDM) systems with a single numerology, they cannot be applied in OFDM-based multiple numerologies. We propose a new preamble structure for use in OFDM system with multiple numerologies. The proposed preamble is generated by overlapping multiple preamble components which have a repetitive structure and an amplified cyclic prefix. With these features, a different time metric corresponding to each numerology can be independently obtained from the proposed preamble. Then, each user can perform time synchronization process with the system parameter corresponding to their numerology, regardless of other user's numerology.",

author = "Hakkeon Lee and Hyunsoo Kim and Sungmook Lim and Daesik Hong",

note = "Funding Information: This work was supported in part by the National Research Foundation of Korea(NRF) grant funded by the Korea government (No. 2018R1A2A1A05021029) and in part by Institute for Information & communications Technology Promotion(IITP) grant funded by the Korea government(MSIP) (No. 2016-0-00181, Development on the core technologies of transmission, modulation and coding with low-power and low-complexity for massive connectivity in the IoT environment); 88th IEEE Vehicular Technology Conference, VTC-Fall 2018 ; Conference date: 27-08-2018 Through 30-08-2018",

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Lee, H, Kim, H, Lim, S & Hong, D 2018, A Novel Preamble Design for Time Synchronization in OFDM-Based Multiple Numerologies. in 2018 IEEE 88th Vehicular Technology Conference, VTC-Fall 2018 - Proceedings., 8691018, IEEE Vehicular Technology Conference, vol. 2018-August, Institute of Electrical and Electronics Engineers Inc., 88th IEEE Vehicular Technology Conference, VTC-Fall 2018, Chicago, United States, 18/8/27. https://doi.org/10.1109/VTCFall.2018.8691018

A Novel Preamble Design for Time Synchronization in OFDM-Based Multiple Numerologies. / Lee, Hakkeon; Kim, Hyunsoo; Lim, Sungmook; Hong, Daesik.

2018 IEEE 88th Vehicular Technology Conference, VTC-Fall 2018 - Proceedings. Institute of Electrical and Electronics Engineers Inc., 2018. 8691018 (IEEE Vehicular Technology Conference; Vol. 2018-August).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

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