Search Results for author: Jingran Xu

Found 5 papers, 0 papers with code

Little Pilot is Needed for Channel Estimation with Integrated Super-Resolution Sensing and Communication

no code implementations16 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.

Super-Resolution

MIMO Symbiotic Radio with Massive Passive Devices: Asymptotic Analysis and Precoding Optimization

no code implementations27 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.

Rate-Region Characterization and Channel Estimation for Cell-Free Symbiotic Radio Communications

no code implementations17 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.

Enabling Full Mutualism for Symbiotic Radio with Massive Backscatter Devices

no code implementations10 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.

Learning Effective Representations for Person-Job Fit by Feature Fusion

no code implementations12 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.

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