Encouraging Cooperation in Multi-Hop Wireless Networks
作者： Maya Rodrig , David Wetherall , Ratul Mahajan , John Zahorjan
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摘要: We present Catch, a protocol that encourages cooperation in multi-hop wireless networks comprised of autonomous nodes. While these nodes depend on each other to relay packets, scarce bandwidth and energy resources may motivate some cheat avoid packet forwarding. Catch employs novel technique based anonymous messages significantly increase the difficulty cheating with impunity. Existing routing protocols simply assume will act cooperatively have no mechanisms encourage this behavior or punish cheaters. imposes minimal requirements overheads system, so is broadly applicable across system workloads. show makes counter-productive, thus encouraging cooperative which are predicated. evaluate an 802.11 testbed, as well through simulation.
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