School of Electronics and Information Engineering;
Taiyuan University of Science and Technology;
Taiyuan;
China;
School of Information Science and Technology;
Southwest Jiaotong University;
Chengdu;
China;
Optical; Multicasting; Elastic; Optical; Networks; Routing; and; Spectrum; Allocation; Network; Coding; Orthogonal; Frequency; Division; Multiplexing;