1. Fuzhou University,Center for Discrete Mathematics,Fuzhou,China,350108
2. Fuzhou University,Department of Microelectronics,Fuzhou,China,350108
3. Hangzhou Huawei Enterprises Telecommunication Technologies Co., Ltd,Hangzhou,China,310000
4. Fudan University,State Key Lab of ASIC & System,Shanghai,China,200433
5. National Taiwan University,Graduate Institute of Electronics Engineering,Taipei,Taiwan,10617