作者机构:College of Computer, Nanjing University of Posts and Telecommunications, Nanjing 210003, China
相关基金:Acknowledgements This work was supported by the National Natural Science Foundation of China (60973139, 60773041), the Natural Science Foundation of Jiangsu Province (BK2008451), the Hi-Tech Research and Development Program of China (2007AA01Z404, 2007AA01Z478), Foundation of National Laboratory for Modem Communications (9140C1105040805), the Postdoctoral Foundation (0801019C, 20090451240, 20090451241), the Science & Technology Innovation Fund for Higher Education Institutions of Jiangsu Province (CX08B-085Z, CX08B-086Z), and the Six Kinds of Top Talent of Jiangsu Province (2008118).