Dept. of Electronic Eng., Shanghai Jiaotong Univ., Shanghai 200030, China;
Dept. of Electronic Eng., Shanghai Jiaotong Univ., Shanghai 200030, China;
Dept. of Electronic Eng., Shanghai Jiaotong Univ., Shanghai 200030, China;
Dept. of Electronic Eng., Shanghai Jiaotong Univ., Shanghai 200030, China;
fast handoff; code-division multiple-access (CDMA); IP-based wireless networks;