Research on the Security of SISOMR Wireless Channel with Artificial Noise

Abstract

Matters involved with security are those fatal matters in wireless communication field. In this paper, the security problem of SISOMR (single input single output with multiple relay-nodes) wireless channel is analyzed and solved in detail. The SISOMR wireless channel with artificial noise is designed to prevent eavesdropping. However, the artificial noise may be invalid probably due to the inherent security weakness. The SISOMR scheme is not safe through our matrix analysis. Therefore, a Relay-nodes Transmission Parameter Optimization (RTPO) scheme is proposed to fix the design flow in order to enhance the original one. Finally, the secrecy capacity of RTPO-SISOMR is introduced.