We propose a proximity-based overlay routing algorithm for accelerating the service discovery using the distributed hash table (DHT)based peer-to-peer (P2P) overlay in mobile ad hoc networks (MANET). DHT systems are useful for resource restrained MANET devices due to the relatively low communication overhead. However, the overlay routing for service discovery is very inefficient, since overlay ...

Advanced Micro Devices Exxon-Mobil Department of Chemical Engineering Austin, TX 78741 Baton Rouge, LA 70806 University of Texas at Austin U.S.A. U.S.A. Austin, TX 78712-1062 U.S.A. Abstract In the manufacture of semiconductor products, overlay is one of the most critical design specifications. Overlay is the position of a pattern relative to underlying layers, and overlay control largely deter...

In many collaborative multimedia applications, there is often a requirement for simultaneously supporting live streaming and shareable interaction. A major challenge in designing such an application by overlay multicast is how to simultaneously provide scalable live streaming and delay-guaranteed interactive media. Live streaming by overlay multicast incurs additional application-layer latency,...

Implementing overlay software is non-trivial. Current projects build overlays or intermediate frameworks on top of low-level networking abstractions. This leaves implementing the topologies, their maintenance and optimisation strategies, and the routing to the developer. The program committee of the Middleware conference 2005 has accepted a paper by the author that presents a novel approach to ...

Features • Low-power CMOS image sensor with integrated image flow processor (IFP) and video encoder • 1/4-inch optical format, VGA resolution (640H x 480V) • ±2.5% additional columns and rows to compensate for lens alignment tolerances • Integrated lens distortion correction • Overlay generator for dynamic bitmap overlay • Integrated video encoder for NTSC/PAL with overlay capability and 10-bit...

P2P computing has emerged as a popular model for utilizing information and resource in Internet. It is built upon an overlay whose topology is independent of the underlying physical network. Because of the mismatch between the overlay and physical network, small number of logical hops may result in a long delay and excessive traffic. In this paper, we propose a universal mechanism-“node swap” t...

Many peer-to-peer overlay operations are inherently parallel and this parallelism can be exploited by using multi-destination multicast routing, resulting in significant message reduction in the underlying network. We propose criteria for assessing when multicast routing can effectively be used, and compare multi-destination multicast and host group multicast using these criteria. We show that ...

In overlay multicast, every end host forwards multicast data to other end hosts in order to disseminate data. However, this cooperative behavior cannot be taken for granted, since each overlay node is now an intelligent end host, rather than an obedient router as in IP multicast. Ideally, a strategyproof mechanism should be provided to motivate cooperations among overlay nodes so that a mutuall...

Fiber-optic chemical sensing has been demonstrated with a side-polished single-mode optical fiber, evanescently coupled to chemically sensitive Langmuir-Blodgett (LB) overlay waveguides. The sensors exhibit a channel-dropping response centered on a wavelength that is dependent on the thickness and the refractive index of the overlay waveguide. It has been shown that pH-sensitive organic dyes pr...

Routing overlays have the potential to circumvent Internet pathologies to construct faster or more reliable paths. We suggest that overlay routing protocols have yet to become ubiquitous because they do not incorporate mechanisms for finding and negotiating with mutually advantageous peers: nodes in the overlay that can benefit equally from each other. We show that mutually advantageous peers e...