Power-Efficient Time-Domain Scheduling for ISAC Beamforming

MEMİŞOĞLU E., Janjua M. B., ARSLAN H.

IEEE Wireless Communications Letters, 2024 (SCI-Expanded) identifier

  • Yayın Türü: Makale / Tam Makale
  • Basım Tarihi: 2024
  • Doi Numarası: 10.1109/lwc.2024.3448528
  • Dergi Adı: IEEE Wireless Communications Letters
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Compendex, INSPEC
  • Anahtar Kelimeler: Array signal processing, Base stations, beamforming, Copper, Integrated sensing and communication, Integrated sensing and communication (ISAC), mmWave, power efficiency, Resource management, Symbols, time-domain scheduling, Vectors
  • İstanbul Medipol Üniversitesi Adresli: Evet

Özet

Power efficiency is a critical metric for a sustainable 6G network. The emergence of integrated sensing and communication (ISAC) services leads to significant power consumption due to additional signal transmission for sensing. An ISAC beamforming is an efficient transmission method for reducing power consumption in mmWave multi-input multi-output (MIMO) systems while meeting the requirements of communication users (CUs) and sensing users (SUs). This approach is only feasible when both users are within the coverage of the same beam. Otherwise, separate beams are required which results in high power consumption. In this study, we propose a novel time-domain scheduling method for ISAC beamforming to achieve high-power efficiency. The performance gains compared to conventional scheduling method are demonstrated for the different number of users, periodicity values, and user distribution ratios.