標題: Design of Downlink Synchronization for Millimeter Wave Cellular System Based on Multipath Division Multiple Access
作者: Chiu, Kang-Lun
Shen, Pai-Hsiang
Lin, Bing-Ru
Hsiao, Wei-Han
Jou, Shyh-Jye Jerry
Huang, Chia-Chi
電子工程學系及電子研究所
電信工程研究所
Department of Electronics Engineering and Institute of Electronics
Institute of Communications Engineering
關鍵字: Computer architecture;Synchronization;Antennas;Microprocessors;Channel models;Frequency synchronization;Time-domain analysis;Cellular system;millimeter wave (mmWave);massive antennas;user equipment (UE) synchronization;multipath division multiple access (MDMA)
公開日期: 1-Sep-2020
摘要: This work focuses on the design of downlink receiver for future generation cellular systems. In the multipath division multiple access (MDMA) system, the initial synchronization process includes timing and carrier frequency synchronization as well as home cell search. For the proposed system, the user data is transmitted in time domain and the cell search is based on control signals transmitted in frequency domain simultaneously. Firstly, this paper presents a novel architecture for the joint detection and estimation of both the coarse symbol boundary and the fractional carrier frequency offset based on cyclic prefix in time domain. Secondly, a robust integer carrier frequency offset detection is performed with the primary control tone in frequency domain. Moreover, the position of the secondary control tones is used to obtain the cell ID. Finally, the preamble sequence carried by the secondary control tones is used to detect frame header through differential detection. The simulation results show the proposed synchronization algorithms can achieve detection failure rate less than 1% and the normalized residual carrier frequency offset is less than 5% under the interference of user data. Furthermore, a hardware design targeted at 200 Mbps per-user data rate is realized with memory arbiter to share memory.
URI: http://dx.doi.org/10.1109/TCSI.2020.2989467
http://hdl.handle.net/11536/155489
ISSN: 1549-8328
DOI: 10.1109/TCSI.2020.2989467
期刊: IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS I-REGULAR PAPERS
Volume: 67
Issue: 9
起始頁: 3211
結束頁: 3223
Appears in Collections:Articles