作者: Amir Krifa , Chadi Barakat , Thrasyvoulos Spyropoulos
关键词: Game theory 、 Function (engineering) 、 Carry (arithmetic) 、 Node (computer science) 、 Exploit 、 Engineering 、 Simple (philosophy) 、 Computer network 、 Communication channel 、 Computer security 、 Content (measure theory)
摘要: In this paper, we present MobiTrade, a utility driven trading system for efficient content dissemination on top of disruption tolerant network. While simple tit-for-tat (TFT) mechanisms can force nodes to "give one get one", dealing with the inherent tendency peers take much but give back little, they quickly lead deadlocks when some (or most) interesting must be somehow fetched across To resolve this, MobiTrade proposes mechanism that allows node ("merchant") buy, store, and carry other (its "clients") so it later trade is personally interested in. exploit extra degree freedom, continuously profile type requested collaboration level encountered devices. An appropriate function then used collect an optimal inventory maximizes expected value stored future encounters, matched observed mobility patterns, interest levels nodes. Using NS3 simulations based synthetic real traces, show achieves up 2× higher query success rates compared schemes. Furthermore, successfully isolates selfish