no code implementations • 16 Apr 2024 • Jingran Xu, Huizhi Wang, Yong Zeng, Xiaoli Xu
First, compared to the conventional channel estimation methods purely relying on channel training, much fewer parameters need to be estimated once the multi-path angles are accurately estimated.
no code implementations • 27 Jun 2022 • Jingran Xu, Zhuoyin Dai, Yong Zeng
Symbiotic radio has emerged as a promising technology for spectrum- and energy-efficient wireless communications, where the passive secondary backscatter devices (BDs) reuse not only the spectrum but also the power of the active primary users to transmit their own information.
no code implementations • 17 May 2022 • Zhuoyin Dai, Ruoguang Li, Jingran Xu, Yong Zeng, Shi Jin
We first derive the achievable communication rates of the active primary user and passive secondary user under the assumption of perfect channel state information (CSI), based on which the transmit beamforming of the cellfree APs is optimized to characterize the achievable rate-region of cell-free symbiotic communication systems.
no code implementations • 10 Jun 2021 • Jingran Xu, Zhuoyin Dai, Yong Zeng
To address this issue and enable full mutualism of symbiotic radio, in this paper, we study symbiotic radio with massive number of BDs.
no code implementations • 12 Jun 2020 • Junshu Jiang, Songyun Ye, Wei Wang, Jingran Xu, Xiaosheng Luo
In this paper, we propose to learn comprehensive and effective representations of the candidates and job posts via feature fusion.