... packetbefore forwarding it. We modify Definition 1 and get a newdefinition of the desirableness factor for HH-VBF.Definition 3. For a candidate forwarder F, the HH-VBFdesirableness factor, α,ofanodeA,isdefinedasα=(R−d ... Wireless Communications and NetworkingVolume 2010, Article ID 195910, 13 pagesdoi:10.1155/2010/195910 Research Article Efficient Vector-Based Forwarding for Underwater Sensor NetworksPeng Xie,1Zhong ... performance of VBF insparse networks, we propose a variant of VBF, called hop-by-hop VBF (HH-VBF). In HH-VBF, the forwarding pathis the vector from forwarding nodes to the target instead of the...