Inverted antenna subset transmission technique for secure millimeter-wave wireless communication
2017 IEEE/CIC International Conference on Communications in China (ICCC)(2017)
摘要
In order to enhance millimeter-wave (mm-Wave) physical layer security (PLS), we propose inverted antenna subset transmission technique (IAST) based large antenna array. IAST consists of a conventional phased-array architecture followed with inverse phase control component. The main idea for security in IAST is to generate artificial noise (AN) on undesired direction by randomly scrambling received constellation through antenna subset selection, while preserving the constellation points in target direction clear. Using a simplified statistical model, an expression of average signal-to-noise ratio (SNR) is derived as a function of the observation angle. The optimized inverse phase ratio of antenna subset is obtained for the objective of minimizing SNR on undesired direction. Simulation results show that the proposed solution provides higher secrecy performance for target user, generates narrower beamwidth in the target direction and produces greater symbol error rate (SER) to eavesdropper compared current techniques.
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关键词
Inverted Antenna Subset Transmission,Secure millimeter-wave wireless communication,Constellation scramble,Physical layer security,Symbol error rate,Secrecy capacity
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