DFT-Based Multi-Directions Directional Modulation
IEEE Wireless Communications Letters, cilt.8, sa.4, ss.1232-1235, 2019 (SCI-Expanded, Scopus)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 8 Sayı: 4
- Basım Tarihi: 2019
- Doi Numarası: 10.1109/lwc.2019.2912597
- Dergi Adı: IEEE Wireless Communications Letters
- Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
- Sayfa Sayıları: ss.1232-1235
- Anahtar Kelimeler: Adaptive beam-width, antenna arrays, directional modulation, physical-layer security
- İstanbul Medipol Üniversitesi Adresli: Evet
Özet
In this letter, a physically secure multi-directions directional modulation scheme is proposed. The scheme provides an adaptive beam-width assignment, where each user is granted a different beam width based on its channel condition. The scheme can be efficiently implemented using a discrete Fourier transform (DFT)-based algorithm that divides the spatial dimension into orthogonal narrow sub-beams. Each user is assigned multiple sub-beams that satisfies its pre-set direction of transmission and beam-width requirements. The scheme preserves the secrecy properties of directional modulation algorithms, where each legitimate user is guaranteed a secure communication link to its trusted receiver. The proposed scheme is practically efficient since it can be directly implemented using a DFT-based signal processing core.