Self-Secure Capacity-Achieving Feedback Scheme for SIMO Rayleigh Channel

In this paper, an efficient and self-secure channel feedback scheme for single-input multiple-output (SIMO) system based on Rayleigh channel is studied. In this paper, the classical SK scheme is extended to SIMO Rayleigh channel and wire-tap channel, and we prove that the extended scheme is self-secure capacity-achieving(SSCA). Numerical results show that this scheme achieves extremely low decoding error probability under especially small codeword length and significantly enhances the physical layer security in SIMO Rayleigh channel.