ACI-Resilient Double-Windowing Technique for Sub-Band Full-Duplex Networks
IEEE Transactions on Vehicular Technology, 2026 (SCI-Expanded, Scopus)
- Yayın Türü: Makale / Tam Makale
- Basım Tarihi: 2026
- Doi Numarası: 10.1109/tvt.2026.3739978
- Dergi Adı: IEEE Transactions on Vehicular Technology
- Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Aerospace Database, Compendex, INSPEC, Materials Science & Engineering Collection (ProQuest), Technology Collection (ProQuest)
- Anahtar Kelimeler: ACI, CP, DL, receiver windowing, SBFD, transmit windowing, UL
- İstanbul Medipol Üniversitesi Adresli: Evet
Özet
Sub-band full duplex (SBFD) is a key enabler for 5G-Advanced and 6 G systems, as it supports simultaneous uplink (UL) and downlink (DL) transmissions over closely spaced sub-bands, thereby enhancing spectral efficiency (SE), reducing latency, and enabling flexible spectrum utilization. However, its practical deployment is severely constrained by adjacent channel interference (ACI) caused by leakage of high-power DL reflections into the UL band, which can severely degrade UL performance and reliability. This article proposes an SBFD-specific cyclic prefix (CP)-aware joint transmit/receive windowing technique that exploits asymmetric DL/UL CP support to suppress DL-induced leakage without extending the shared orthogonal frequency-division multiplexing (OFDM) symbol duration. Simulation results show notable gains in signal-to-interference-plus-noise ratio (SINR) and bit error rate (BER), confirming the suitability of the proposed approach for interference-resilient SBFD operation in 5G-Advanced and beyond networks without introducing much complexity.