Huang Shanguo, born in 1978. He received the Ph. D degree in Beijing University of Posts and Telecommunications in 2006. He is cun'ently a lecture Beijing U- niversity of Posts and Telecommunications. His research interests include the optical networks designing, planning, the traffic control and resource allocation, especially network routing algorithms and performance analysis.To whom correspondence should be addressed. E-mail: shghuang@bupt. edu. cn.