1. University of Waterloo,Department of Electrical and Computer Engineering,Waterloo,Canada
2. Huawei Ottawa Research and Development Centre,Ottawa,Canada
3. Budapest University of Technology and Economics,Department of Telecommunications and Media Informatics,Hungary
4. School of Computer Science, Hubei University of Technology,Wuhan,China
5. School of Computer Science and Engineering, Kyungpook National University,Daegu,South Korea