TY - GEN
T1 - Dedicated beam-based channel training technique for millimeter wave communications with high mobility
AU - Bae, Jisu
AU - Lim, Sun Hong
AU - Yoo, Jin Hyeok
AU - Choi, Jun Won
AU - Shim, Byonghyo
N1 - Funding Information:
VI. ACKNOWLEDGEMENT This work was supported by the National Research Foundation of Korea Grant funded by the Korean Government (NRF-2017R1D1A1A09000602) and Samsung Research Funding & Incubation Center of Samsung Electronics under Project Number SRFC-IT-1601-09.
Funding Information:
This work was supported by the National Research Foundation of Korea Grant funded by the Korean Government (NRF-2017R1D1A1A09000602) and Samsung Research Funding & Incubation Center of Samsung Electronics under Project Number SRFC-IT-1601-09.
Publisher Copyright:
© EURASIP 2018.
PY - 2018/11/29
Y1 - 2018/11/29
N2 - In this paper, we propose a new beam training framework to cope with mobility scenarios in millimeter wave communications. When a position of the mobile changes, the base-station needs to perform beam training frequently to track the time-varying channel, which leads to significant training overhead in radio resources. In order to alleviate this problem, we propose a “dedicated beam training” which serves only users under high mobility. Combined with conventional common beam training, the proposed dedicated beam training can allow the high mobility users to acquire channels with a small number of training beams exploiting the location information of the target user. The optimal selection of the training beams is formulated such that the lower bound of the angle of departure (AoD) estimate is minimized over the beam codebook indices given the estimate of the previous AoD state. Our numerical evaluation demonstrates that the proposed beam training scheme can maintain good channel estimation performance with less training overhead than the conventional beam training protocol.
AB - In this paper, we propose a new beam training framework to cope with mobility scenarios in millimeter wave communications. When a position of the mobile changes, the base-station needs to perform beam training frequently to track the time-varying channel, which leads to significant training overhead in radio resources. In order to alleviate this problem, we propose a “dedicated beam training” which serves only users under high mobility. Combined with conventional common beam training, the proposed dedicated beam training can allow the high mobility users to acquire channels with a small number of training beams exploiting the location information of the target user. The optimal selection of the training beams is formulated such that the lower bound of the angle of departure (AoD) estimate is minimized over the beam codebook indices given the estimate of the previous AoD state. Our numerical evaluation demonstrates that the proposed beam training scheme can maintain good channel estimation performance with less training overhead than the conventional beam training protocol.
UR - http://www.scopus.com/inward/record.url?scp=85059802077&partnerID=8YFLogxK
U2 - 10.23919/EUSIPCO.2018.8553578
DO - 10.23919/EUSIPCO.2018.8553578
M3 - Conference contribution
AN - SCOPUS:85059802077
T3 - European Signal Processing Conference
SP - 1830
EP - 1834
BT - 2018 26th European Signal Processing Conference, EUSIPCO 2018
PB - European Signal Processing Conference, EUSIPCO
T2 - 26th European Signal Processing Conference, EUSIPCO 2018
Y2 - 3 September 2018 through 7 September 2018
ER -