Hybrid Beamforming for Integrated Sensing and Communications With Low Resolution DACs
Küçük Resim Yok
Tarih
2025
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Institute of Electrical and Electronics Engineers Inc.
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
Integrated sensing and communications (ISAC) has emerged as a means to efficiently utilize spectrum and thereby save cost and power. At the higher end of the spectrum, ISAC systems operate at wideband using large antenna arrays to meet the stringent demands for high-resolution sensing and enhanced communications capacity. On the other hand, the overall design should satisfy energy-efficiency and hardware constraints such as operating on low resolution components for a practical scenario. Therefore, this letter presents the design of Hybrid ANalog and Digital BeAmformers with Low resoLution (HANDBALL) digital-to-analog converters (DACs). We introduce a greedy-search-based approach to design the analog beamformers for multi-user multi-target ISAC scenario. Then, the quantization distortion is taken into account in order to design the baseband beamformer with low resolution DACs. We evaluated performance of the proposed HANDBALL technique in terms of both spectral efficiency and sensing beampattern, providing a satisfactory sensing and communication performance for both one-bit and few-bit designs. © 2024 IEEE.
Açıklama
Anahtar Kelimeler
Hybrid Beamforming, Integrated Sensing and Communications, Low Resolution, massive MIMO, One-bit
Kaynak
IEEE Wireless Communications Letters
WoS Q Değeri
Q1
Scopus Q Değeri
Q1
Cilt
14
Sayı
1
Künye
Elbir, A. M., Celik, A., & Eltawil, A. M. (2024). Hybrid Beamforming for Integrated Sensing and Communications With Low Resolution DACs. IEEE Wireless Communications Letters.
