[IEEE 2009 IEEE International Conference on Communications Technology and Applications (ICCTA) - Beijing, China (2009.10.16-2009.10.18)] 2009 IEEE International Conference on Communications Technology and Applications - Transmission capacities for overlaid spread-spectrum wireless networksDi Li, ; Changchuan Yin, ; Huarui Wu, ; Yan Ma, ; Jianfeng Li, · 2009