[1] Hangzhou Dianzi Univ, Sch Commun Engn, Hangzhou 310018, Zhejiang, Peoples R China
[2] Univ Elect Sci & Technol China, Sch Aeronaut & Astronaut, Chengdu 611731, Sichuan, Peoples R China
[3] Embry Riddle Aeronaut Univ, Dept Elect Comp Software & Syst Engn, Daytona Beach, FL 32114 USA