TY - GEN
T1 - A Novel Preamble Design for Time Synchronization in OFDM-Based Multiple Numerologies
AU - Lee, Hakkeon
AU - Kim, Hyunsoo
AU - Lim, Sungmook
AU - Hong, Daesik
PY - 2018/7/2
Y1 - 2018/7/2
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=85064906454&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85064906454&partnerID=8YFLogxK
U2 - 10.1109/VTCFall.2018.8691018
DO - 10.1109/VTCFall.2018.8691018
M3 - Conference contribution
AN - SCOPUS:85064906454
T3 - IEEE Vehicular Technology Conference
BT - 2018 IEEE 88th Vehicular Technology Conference, VTC-Fall 2018 - Proceedings
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 88th IEEE Vehicular Technology Conference, VTC-Fall 2018
Y2 - 27 August 2018 through 30 August 2018
ER -