Institution: | 1. Communication Research Center,Harbin Inst.of Technology,Harbin 150080,P.R.China;School of Computer Science and Technology,Harbin Inst.of Technology,Harbin 150001,P.R.China 2. School of Computer Science and Technology,Harbin Inst.of Technology,Harbin 150001,P.R.China 3. Communication Research Center,Harbin Inst.of Technology,Harbin 150080,P.R.China |