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Spatial Spectrum Nulling for Wideband OFDM-DFRC System With Hybrid Beamforming Architecture
Wang, Bowen; Cheng, Ziyang; Wu, Linlong et al.
2022In 2022 IEEE Wireless Communications and Networking Conference (WCNC)
Peer reviewed
 

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Abstract :
[en] This paper deals with the problem of the hybrid beamforming design of wideband orthogonal frequency division multiplexing (OFDM) dual-function radar-communication (DFRC) system, which is expected to achieve a satisfactory user's spectral efficiency and form excellent space-frequency spectrum behavior as well as spatial nulls on the directions of strong signal-dependent interference (such as clutters) simultaneously. For such purpose, we formulate our problem by maximizing the communication spectral efficiency subject to the constraints of radar integrated sidelobe to mainlobe ratio (ISMR) and spatial spectrum nulling (SSN). Due to the fact that the analog beamformer for all subcarriers and digital beamformer for each subcarrier are simultaneously optimized in the wideband OFDM system, the resultant problem is difficult to solve. Towards that end, an efficient algorithm is devised based on the consensus alternating direction method of multipliers (CADMM) framework. Numerical simulation results demonstrate the superiority of the proposed hybrid beamforming algorithm.
Disciplines :
Electrical & electronics engineering
Author, co-author :
Wang, Bowen
Cheng, Ziyang
Wu, Linlong  ;  University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT) > SPARC
He, Zishu
External co-authors :
yes
Language :
English
Title :
Spatial Spectrum Nulling for Wideband OFDM-DFRC System With Hybrid Beamforming Architecture
Publication date :
2022
Event name :
IEEE Wireless Communications and Networking Conference
Event organizer :
IEEE
Event date :
from 10-04-2022 to 13-04-2022
Main work title :
2022 IEEE Wireless Communications and Networking Conference (WCNC)
Pages :
240--244
Peer reviewed :
Peer reviewed
FnR Project :
FNR12734677 - Signal Processing For Next Generation Radar, 2018 (01/09/2019-31/08/2022) - Bjorn Ottersten
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