A New Tuning Algorithm Based on Variable Step Approaching for RF Self-Interference Cancellation

Hongru Zhang; Zhifang Xing; Changhao Du; Zhongshan Zhang

doi:10.1109/LWC.2024.3391351

A New Tuning Algorithm Based on Variable Step Approaching for RF Self-Interference Cancellation

Hongru Zhang, Zhifang Xing, Changhao Du^*, Zhongshan Zhang

^*Corresponding author for this work

School of Cyberspace Science and Technology

Beijing Institute of Technology

Research output: Contribution to journal › Article › peer-review

2 Citations (Scopus)

Abstract

Radio frequency (RF) domain cancellation is a necessary process to mitigate self-interference (SI) for Full-Duplex (FD) wireless communication systems. Multi-taps RF canceller is designed for accurately reconstructing the multipath SI signals by deriving an optimal configuration of multiple weights. A new adaptive optimization algorithm called Variable Step Approaching (VSA) algorithm is derived for constructing multi-taps RF cancellers by improving both RF cancellation performance and convergence speed with low computational complexity. Specifically, an architecture of multi-taps RF canceller employing a new algorithm is presented and evaluated. Finally, experiment results validate the proposed algorithm.

Original language	English
Pages (from-to)	1780-1784
Number of pages	5
Journal	IEEE Wireless Communications Letters
Volume	13
Issue number	6
DOIs	https://doi.org/10.1109/LWC.2024.3391351
Publication status	Published - 1 Jun 2024

Keywords

Full-duplex
RF cancellation
adaptive tuning algorithm
self-interference

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10.1109/LWC.2024.3391351

Cite this

Zhang, H., Xing, Z., Du, C., & Zhang, Z. (2024). A New Tuning Algorithm Based on Variable Step Approaching for RF Self-Interference Cancellation. IEEE Wireless Communications Letters, 13(6), 1780-1784. https://doi.org/10.1109/LWC.2024.3391351

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abstract = "Radio frequency (RF) domain cancellation is a necessary process to mitigate self-interference (SI) for Full-Duplex (FD) wireless communication systems. Multi-taps RF canceller is designed for accurately reconstructing the multipath SI signals by deriving an optimal configuration of multiple weights. A new adaptive optimization algorithm called Variable Step Approaching (VSA) algorithm is derived for constructing multi-taps RF cancellers by improving both RF cancellation performance and convergence speed with low computational complexity. Specifically, an architecture of multi-taps RF canceller employing a new algorithm is presented and evaluated. Finally, experiment results validate the proposed algorithm.",

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AB - Radio frequency (RF) domain cancellation is a necessary process to mitigate self-interference (SI) for Full-Duplex (FD) wireless communication systems. Multi-taps RF canceller is designed for accurately reconstructing the multipath SI signals by deriving an optimal configuration of multiple weights. A new adaptive optimization algorithm called Variable Step Approaching (VSA) algorithm is derived for constructing multi-taps RF cancellers by improving both RF cancellation performance and convergence speed with low computational complexity. Specifically, an architecture of multi-taps RF canceller employing a new algorithm is presented and evaluated. Finally, experiment results validate the proposed algorithm.

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A New Tuning Algorithm Based on Variable Step Approaching for RF Self-Interference Cancellation

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