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GLARE: Global and Local Wiring Aware Routability Evaluation
"... Industry routers are very complex and time consuming, and are becoming more so with the explosion in design rules and design for manufacturability requirements that multiply with each technology node. Global routing is just the first phase of a router and serves the dual purpose of (i) seeding the f ..."
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Cited by 3 (1 self)
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the following phases of a router and (ii) evaluating whether the current design point is routable. Lately, it has become common to use a “light mode ” version of the global router, similar to today’s academic routers, to quickly evaluate the routability of a given placement. This use model suffers from two
Planning for Local Net Congestion in Global Routing∗
"... Local nets are a major contributing factor to mismatch be-tween the global routing (GR) and detailed routing (DR) stages. A local net has all its terminals inside one global cell (gcell) and is traditionally ignored during global rout-ing. This work offers two contributions in order to estimate and ..."
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by introducing a capacity for each gcell in the GR graph. With these two complementary approaches, we offer a mathematical model for the congestion-aware GR problem that captures local congestion with non-uniform gcells along with other complicating factors of modern designs including variable wire sizes
Abstract * Understanding and Addressing the Impact of Wiring Congestion During Technology Mapping
"... Traditionally, interconnect effects are taken into account during logic synthesis via wireload models, but their ineffectiveness for DSM technologies has been demonstrated and various physical synthesis approaches have been spawned to address the problem. Of particular interest is that logic block s ..."
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, as we will demonstrate, predicting the true congestion prior to layout is not possible, and the efficacy of any approach can only be evaluated after routing is completed within the fixed die size. In this paper we propose a practical, complete methodology which first performs congestion-aware technology
Relative localization with 2-hop neighborhood
- World of Wireless, Mobile and Multimedia Networks, 2008. WoWMoM 2008. 2008 International Symposium on a
, 2008
"... Localization is the process in which nodes in a wireless sensor network self-determine their positions in the net-work. While there are many effective mathematical tech-niques for solving the problem of localization, most are not suitable for the resource-constrained distributed envi-ronment of sens ..."
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Cited by 1 (0 self)
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-ronment of sensor networks. We propose ANIML an iter-ative, range-aware relative localization technique for wire-less sensor networks that requires no anchor nodes. ANIML restricts itself to the use of only local 1- and 2-hop neigh-bor information, avoiding the need for information flooding and thus controlling
New Techniques for Geographic Routing
, 2006
"... As wireless sensor networks continue to grow in size, we are faced with the prospect of emerging wireless networks with hundreds or thousands of nodes. Geographic routing algorithms are a promising alternative to tradition ad hoc routing algorithms in this new domain for point-to-point routing, but ..."
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As wireless sensor networks continue to grow in size, we are faced with the prospect of emerging wireless networks with hundreds or thousands of nodes. Geographic routing algorithms are a promising alternative to tradition ad hoc routing algorithms in this new domain for point-to-point routing, but deployments of such algorithms are currently uncommon because of some practical difficulties.
Author manuscript, published in "WWW (Companion Volume) (2012) 211-214" The ERC Webdam on Foundations of Web Data Management ∗
, 2012
"... The Webdam ERC grant is a five-year project that started in December 2008. The goal is to develop a formal model for Web data management that would open new horizons for the development of the Web in a well-principled way, enhancing its functionality, performance, and reliability. Specifically, the ..."
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global data management activities, cooperate in solving specific tasks, and support services with desired quality of service. Although the proposal addresses fundamental issues, its goal is to serve as the basis for future software development for Web data management.
Secure Geographic Routing in Wireless Sensor Networks
, 2013
"... the non-exclusive right to publish the Work electronically and in a non-commercial purpose make it accessible on the Internet. The Author warrants that he/she is the author to the Work, and warrants that the Work does not contain text, pictures or other material that violates copyright law. The Auth ..."
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the non-exclusive right to publish the Work electronically and in a non-commercial purpose make it accessible on the Internet. The Author warrants that he/she is the author to the Work, and warrants that the Work does not contain text, pictures or other material that violates copyright law. The Author shall, when transferring the rights of the Work to a third party (for example a publisher or a company); acknowledge the third party about this agreement. If the Author has signed a copyright agreement with a third party regarding the Work, the Author warrants hereby that he/she has obtained any necessary permission from this third party to let Chalmers University of Technology and University of Gothenburg store the Work electronically and make it accessible on the Internet.
SIMULATION, DEVELOPMENT AND DEPLOYMENT OF MOBILE WIRELESS SENSOR NETWORKS FOR MIGRATORY BIRD TRACKING
, 2012
"... This thesis presents CraneTracker, a multi-modal sensing and communication system for monitoring migratory species at the continental level. By exploiting the robust and extensive cellular infrastructure across the continent, traditional mobile wireless sensor networks can be extended to enable reli ..."
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This thesis presents CraneTracker, a multi-modal sensing and communication system for monitoring migratory species at the continental level. By exploiting the robust and extensive cellular infrastructure across the continent, traditional mobile wireless sensor networks can be extended to enable reliable, low-cost monitoring of migratory species. The developed multi-tier architecture yields ecologists with unconventional behavior in-formation not furnished by alternative tracking systems at such a large scale and for a low-cost. The simulation, development and implementation of the CraneTracker soft-ware system is presented. The system is shown effective through multiple proxy deploy-
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, 2009
"... Abstract: Mobile ad hoc networks (MANETs) and wireless sensor networks (WSNs) are two recently-developed technologies that uniquely function without xed infrastructure support, and sense at scales, resolutions, and durations previously not possible. While both offer great potential in many applicati ..."
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Abstract: Mobile ad hoc networks (MANETs) and wireless sensor networks (WSNs) are two recently-developed technologies that uniquely function without xed infrastructure support, and sense at scales, resolutions, and durations previously not possible. While both offer great potential in many applications, developing software for these types of networks is extremely dffcult, preventing their wide-spread use. Three primary challenges are (1) the high level of dynamics within the network in terms of changing wireless links and node hardware con gurations, (2) the wide variety of hardware present in these networks, and (3) the extremely limited computational and energy resources available. Until now, the burden of handling these issues was put on the software application developer. This dissertation presents three novel programming models and middleware systems that address these challenges: Limone, Agilla, and Servilla. Limone reliably handles high levels of dynamics within MANETs. It does this through lightweight coordination primitives that make minimal assumptions about network connectivity. Agilla enables self-adaptive WSN applications via the integration of mobile agent and tuple space programming models, which is critical given the continuously changing network. It is the rst system to successfully demonstrate the feasibility of using mobile agents and tuple spaces within
Collection Tree Protocol
"... This paper presents and evaluates two principles for designing robust, reliable, and efficient collection protocols. These principles allow a protocol to benefit from accurate and agile link estimators by handling the dynamism such estimators introduce to routing tables. The first is datapath valida ..."
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This paper presents and evaluates two principles for designing robust, reliable, and efficient collection protocols. These principles allow a protocol to benefit from accurate and agile link estimators by handling the dynamism such estimators introduce to routing tables. The first is datapath
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