Wei-Cheng Xiao Shih-Hsuan Tang Cheng-Fu Chou VIP: a Virtual Interface-based aPproach for vertical handover in single-subnet networks. 436-442 2007 conf/aina/2007 AINA http://doi.ieeecomputersociety.org/10.1109/AINA.2007.146 db/conf/aina/aina2007.html#XiaoTC07