1. Quanzhou Institute of Equipment Manufacturing Haixi Institutes Chinese Academy of Sciences,Quanzhou,China
2. Fujian Agriculture and Forestry University,College of Mechanical and Electrical Engineering,Fuzhou,China
3. Technische Universität München,College of Telecommunications,Munich,Germany
4. Tashkent University of Information Technologies,Technologies of Mobile Communication Department,Tashkent,Uzbekistan