Low-Complexity Greedy Antenna Reservation for MIMO-SWIPT Systems via QR Decomposition and SIC
IEEE Wireless Communications Letters, cilt.15, ss.3995-3999, 2026 (SCI-Expanded, Scopus)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 15
- Basım Tarihi: 2026
- Doi Numarası: 10.1109/lwc.2026.3710028
- Dergi Adı: IEEE Wireless Communications Letters
- Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Aerospace Database, Compendex, INSPEC, Technology Collection (ProQuest)
- Sayfa Sayıları: ss.3995-3999
- Anahtar Kelimeler: antenna switching, energy harvesting, ergodic capacity, MIMO, order statistics, QR decomposition, SIC, SWIPT
- Ankara Yıldırım Beyazıt Üniversitesi Adresli: Hayır
Özet
This study proposes a low-complexity greedy antenna reservation algorithm for multiple-input multiple-output simultaneous wireless information and power transfer systems with antenna switching. By exploiting QR decomposition and successive interference cancellation, the algorithm heuristically designates receive antennas to maximize ergodic capacity while enabling adequate energy harvesting. Analytical expressions for the capacity and average harvested energy are derived using order statistics. Numerical results show that the proposed scheme attains performance close to exhaustive search with significantly reduced complexity, offering a practical solution for next-generation energy-aware wireless communication systems.