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In this paper, we propose performance guaranteed routing protocols in asymmetric sensor networks (ASNs) where two end nodes may not use the same path to communicate with each other. ASNs can be caused by hardware devices or environment. Different from most of the existing routing protocols in symmetric sensor networks, because of asymmetry, achieving desired routing performance in ASNs poses significant...
While a variety of routing algorithms have been invented for overlay networks, only a few studies focus on the placement problem of overlay nodes. However, the performance of overlay routing always depends on the routing policy of the underlying Internet, such as BGP routing. According to the BGP routing policy, the result routing path heavily depends on the locations of the two end nodes. By placing...
We propose a novel overlay routing infrastructure, namely Overlay-based Service Distribution Network(OSDN), which eliminates path inflation due to the inter-domain routing policy and could serve as a universal platform to convey various online services more efficiently. Its basic idea is to deploy overlay nodes at critical locations in the Internet such that the service provider and its customers...
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