Zhongpu Cui

Orthogonalized Parallel Variable Step Size Nonlinear LMS Algorithm for Adaptive Digital Interference Canceller

Zhongpu Cui, Songhu Ge, Yedi Xin, Jinling Xing

Since the basis functions of the nonlinear model are mutually correlated, the fixed step size nonlinear least mean square (LMS) algorithm in the digital canceller suffers from slow convergence rate, high steady state error and instability. In this paper, an orthogonalized parallel …

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Design and Analysis of Heterodyne Self-Interference RF Adaptive Cancellation Systems

Songhu Ge, Fangmin He, Li Yi, Yaxing Li et autres

With the extensive deployment of electronic information systems in modern RF integrated platforms, the issue of co-site, co-channel, or adjacent-channel interference has become increasingly severe. To address this problem effectively, the digitally controlled adaptive self-interference cancellation technology is considered as a viable …

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An Interference Signal Recognition Method Based on Feature Extraction and YOLOv8 in Low INR

Hongyu Tian, Songhu Ge, Yu Guo, Zhongpu Cui et autres

To enhance the recognition capability of wireless communication interference signals, this paper proposes an interference signal recognition method based on feature extraction and YOLOv8. First, mathematical models of 11 common types of interference signals are simulated. Then, a feature extraction method based …

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Cancellation Quality Assessment with Spectrum Segmentation for Speech Communication

Yu Guo, Songhu Ge, Zhongpu Cui, Fangmin He

The spectrum segmentation method is proposed for the interference cancellation quality assessment, which not only integrates the spectrum distribution characteristic of speech and interference, but also introduces the statistical optimization model for calibrating the assessment coefficient. Hence, there will be a remarkable …

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A Game-Theoretic Power Control Approach for FD Jamming and Interception System Over Rayleigh Fading Channels

Songhu Ge, Jinling Xing, Yu Guo, Zhongpu Cui et autres

This paper addresses the optimum power control problem of Full-Duplex (FD) jamming and interception system under game theory framework over Rayleigh fading channels. First, a game-theoretic power control model is established to describe the interactions between transmitter and FD jammer by exploiting …

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A Self-interference Canceller Design Based on Knowledge-driven Neural Network

Peng Gao, Jinling Xing, Songhu Ge, Yu Guo et autres

In-band full-duplex (IBFD) technology, which enables signal simultaneous transmission and receptions in the same frequency band, has been recognized as a key technology in wireless networks. However, self-interference (SI) is a significant problem that hinders its practical application, and effective SI cancellation …

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Analysis and Optimization on Weight Accuracy of the Adaptive Interference Cancellation

Yunshuo Zhang, Songhu Ge, Huanding Qin, Hongbo Liu et autres

Adaptive Antenna Array Based Non-Cooperative Co-Channel Interference Cancellation System for Ultrashort Wave Radios and Non-Ideality Analysis

Zhongpu Cui, Yaxing Li, Songhu Ge, Jiahao Zhang et autres

Interference cancellation holds great promising to suppress the non-cooperative interference. However, it is usually difficult to obtain an ideal copy of the non-cooperative interference since its statistical characteristics are unknown. A novel adaptive antenna array based non-cooperative co-channel interference cancellation system for …

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An adaptive two‐dimensional orthogonalization scheme for non‐linear digital canceller in full‐duplex radios

Zhongpu Cui, Songhu Ge, Yaxing Li, Yu Guo et autres

Abstract In this letter, an adaptive two‐dimensional orthogonalization (ATDO) scheme for non‐linear digital canceller is proposed to realize self‐interference (SI) suppression in full‐duplex radios. The proposed scheme consists of three parts. First, an adaptive lattice predictor is adopted to orthogonalize the input …

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FPGA-based Design and Implementation of High-Speed Spatial Adaptive Processing

Zhongpu Cui, Yongcai Liu, Yaxing Li, Jin Meng et autres

In this paper, a high-speed FPGA implementation of complex spatial adaptive processing system based on Xilinx System Generator is presented to suppress interference for wireless radios. By adopting Complex Delayed Least Mean Square (CDLMS) structure, 200 million-samples-per-second (Msps) throughput rate can be …

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Channel Discrepancies Adaptive Modulation Recognition Using Domain Adversarial Training

Yaxing Li, Hao Wu, Ying Jian Kang, Yu Guo et autres

In this paper, we introduce a channel discrepancies adaptive automatic modulation recognition (AMR) method, which employs the domain adversarial training (DAT) to tackle the issue of wireless channel mismatch between training and testing conditions. The channel mismatch is a critical problem for …

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Adaptive Nonlinear Digital Interference Cancellation with Two-Dimensional Orthogonalization for Co-site radios

Songhu Ge, Zhongpu Cui, Jinling Xing, Yaxing Li et autres

The performance of traditional adaptive nonliear interference cancellation algorithms will degrade in practical application due to the correlation of nonliear basis function. Therefore, in this paper, we proposed a two dimensional orthogonalization based adaptive nonlinear digital interference cancellation algorithm. In the proposed …

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