Group-based Multi-User Tracking in Mobile Millimeter-Wave Networks

研究成果: Conference contribution

摘要

This work tackles the problem of user tracking in the multi-user scenario. User tracking is one of the key functional elements in millimeter wave (mmWave) communications that heavily rely on directional beamforming to overcome significant path loss. A naive strategy is to track users one by one but this not only introduces great overhead but also reduces the tracking update frequency when the number of users or antennas is large. In addition, user tracking based the angular information, namely angle of arrival (AoA)/angle of departure (AoD) often requires a good initial estimate and an iterative procedure to ensure the accuracy. Aiming to improve the tracking efficiency for multiple users, we propose to track multiple users simultaneously by partitioning users into groups based on the beamspace multi-input and multi-output (MIMO) channel representation. We formulate the joint user grouping and precoding as a mixed-integer nonlinear programming (MINP) problem and propose a low-complexity grouping algorithm. Simulation results demonstrate the significant improvement of the proposed multi-user tracking scheme over two existing approaches in terms of the spectral efficiency.

原文English
主出版物標題2020 IEEE Wireless Communications and Networking Conference, WCNC 2020 - Proceedings
發行者Institute of Electrical and Electronics Engineers Inc.
ISBN(電子)9781728131061
DOIs
出版狀態Published - 2020 五月
事件2020 IEEE Wireless Communications and Networking Conference, WCNC 2020 - Seoul, Korea, Republic of
持續時間: 2020 五月 252020 五月 28

出版系列

名字IEEE Wireless Communications and Networking Conference, WCNC
2020-May
ISSN(列印)1525-3511

Conference

Conference2020 IEEE Wireless Communications and Networking Conference, WCNC 2020
國家Korea, Republic of
城市Seoul
期間20-05-2520-05-28

All Science Journal Classification (ASJC) codes

  • Engineering(all)

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  • 引用此

    Lai, P. Y., & Liu, K. H. S. (2020). Group-based Multi-User Tracking in Mobile Millimeter-Wave Networks. 於 2020 IEEE Wireless Communications and Networking Conference, WCNC 2020 - Proceedings [9120731] (IEEE Wireless Communications and Networking Conference, WCNC; 卷 2020-May). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/WCNC45663.2020.9120731