NETWORKING 2007. Ad Hoc and Sensor Networks, Wireless Networks, Next Generation Internet : 6th International IFIP-TC6 Networking Conference, Atlanta, GA, USA, May 14-18, 2007, Proceedings - Ian F. Akyildiz, Raghupathy Sivakumar, Eylem Ekici, Jaudelice Cavalcante de Oliveira, Janise McNair ((Lecture Notes in Computer Science))