Inspec keywords: MIMO communication; array signal processing; telecommunication security; antenna arrays; feedback; wireless channels; OFDM modulation

Other keywords: wireless channels; practically relevant assumptions; secure communications; (OFDM) system; feedback link; single-output orthogonal frequency division; promising approach; conventional secure MISO-OFDM systems; passive eavesdropper; physical layer security; spatial signature

Subjects: Radio links and equipment; Signal processing and detection; Modulation and coding methods; Other topics in statistics