2024/04/26 by Jiahao Zhang, Wei Li, Hongzhang Gao +4 · 11 citations
Engineering · #Acoustics #Antenna (radio) #Antenna Design and Analysis #Antenna Design and Optimization #Antenna array #Computer science #Dipole antenna #Directional antenna #Electronic engineering #Engineering #Full-Duplex Wireless Communications #Interference (communication) #Physics #Single antenna interference cancellation #Smart antenna #Telecommunications
paper · doi:10.1109/tap.2024.3391896
published in IEEE Transactions on Antennas and Propagation 72(6), 5021-5032 (IEEE Antennas & Propagation Society)
openalex publication_date 2024/04/26 · openalex created_date 2025/10/10 · openalex updated_date 2026/06/26
Non-cooperative interference cancellation (NCIC) is one of the most promising anti-interference methods, by introducing auxiliary antennas cooperated with the main antenna of the sheltered information equipment. The specific main-auxiliary antenna configuration of the NCIC system triggered the investigation of the heterogeneous dispersed array, which is of great importance for not only the NCICs, but also many other applications. The spatial spectrum characteristics of the heterogeneous dispersed array are systematically investigated, including the main null, the side null, and the mainlobe. The spatial resolution of the main null is quantitatively described by utilizing the signal of interest cancellation ratio; the physical meaning of the side null is interpreted, and the position distribution is investigated; the distortion properties of the mainlobe after interference cancellation are analyzed, predicting the performance changing of the main antenna. Based on the spatial spectrum analysis, the optimization methods for the heterogeneous dispersed antenna array are studied. Firstly, the static array synthesis by elements location optimization is proposed, with the objectives of the spatial spectrum characteristics, and the constraints of the platform dimensions. Next, when the array elements location is fixed, the active array reconfiguration by antenna switching optimization is proposed by taking the minimum array configuration of the objective and the spatial spectrum performance for constraints. The proposed concepts and methods are validated by experiment results.