Two-step Phase Synchronization Algorithm for Distributed Collaborative Beamforming

Beamforming technology is mainly applied to increase the energy utilization efficiency in wireless communication, and to enlarge signal transmission range via multiantenna technology. The beamforming technology presented in this paper is distributed collaborative beamforming (DCBF) technology, which...

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Bibliographic Details
Published in2021 IEEE 6th International Conference on Signal and Image Processing (ICSIP) pp. 1188 - 1192
Main Authors Xu, Jianwen, Yang, Yi, Yang, Yang, Zhang, Ling, Wang, Jian, Zhuang, Jie
Format Conference Proceeding
LanguageEnglish
Published IEEE 22.10.2021
Subjects
Array signal processing
Conferences
cooperative beamforming
Cooperative communication
distributed array
Image processing
Monte Carlo methods
Perturbation methods
phase synchronization
Phased arrays
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DOI10.1109/ICSIP52628.2021.9688760

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Summary:Beamforming technology is mainly applied to increase the energy utilization efficiency in wireless communication, and to enlarge signal transmission range via multiantenna technology. The beamforming technology presented in this paper is distributed collaborative beamforming (DCBF) technology, which is a branch of cooperative communication. In this paper, we propose a phase synchronization algorithm to achieve DCBF in a distributed array. The proposed algorithm consists of two steps. First, in order to improve the convergent speed of the phase alignment, we traverse all N possible initial phases of each node to determine a local optimum iteration point. Then we perform two-bit feedback iteration to ensure that the normalized received signal strength (NRSS) reaches the threshold of cooperative beamforming. Numerical results demonstrate that proposed algorithm offers better phase synchronization performance compared with the classical one-bit feedback method and two-bit feedback method.
DOI:10.1109/ICSIP52628.2021.9688760