New PDF release: Algorithmic Aspects of Wireless Sensor Networks: First

By Viktor K. Prasanna (auth.), Sotiris E. Nikoletseas, José D. P. Rolim (eds.)

ISBN-10: 3540224769

ISBN-13: 9783540224761

ISBN-10: 3540278206

ISBN-13: 9783540278207

This quantity comprises the contributed papers and invited talks provided on the 1stInternationalWorkshoponAlgorithmicAspectsofWirelessSensorNetworks (ALGOSENSORS 2004), which used to be held July sixteen, 2004, in Turku, Finland, - situated with the thirty first foreign Colloquium on Automata, Languages, and Programming (ICALP 2004). instant advert hoc sensor networks became an important learn topic because of their power to supply varied companies in several appli- tions. the belief of sensor networks calls for in depth technical learn and improvement e?orts, specifically in power-aware scalable instant advert hoc c- munications protocols, as a result of their strange software standards and critical constraints. nevertheless, a high-quality theoretical historical past turns out helpful for sensor networks to accomplish their complete capability. it really is an algorithmic problem to accomplish e?cient and powerful realizations of such huge, hugely dynamic, complicated, n- traditional networking environments. beneficial properties, together with the massive variety of sensor units concerned, the critical energy, computational and reminiscence limi- tions, their dense deployment and common disasters, pose new layout, research and implementation demanding situations. This occasion is meant to supply a discussion board for researchers and practitioners to provide their contributions on the topic of all facets of instant sensor networks. issues of curiosity for ALGOSENSORS 2004 have been: – Modeling of speci?c sensor networks. – equipment for advert hoc deployment. – Algorithms for sensor localization and monitoring of cellular clients. – Dynamic sensor networks. – Hierarchical clustering architectures. – Attribute-based named networks. – Routing: implosion matters and source administration. – conversation protocols. – Media entry regulate in sensor networks. – Simulators for sensor networks.

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Additional resources for Algorithmic Aspects of Wireless Sensor Networks: First International Workshop, ALGOSENSORS 2004, Turku, Finland, July 16, 2004. Proceedings

Sample text

As depicted in Figure 1, the hinge consists of three edges between fixed points on the surfaces of the bodies, with the inner edge longer than the outer two. Lemma 1 below describes the exact structure of the hinge and its properties. Lemma 1. Fix points A at coordinates (0, 0), B at coordinates (m, 0), and K √ 3 and let C and at coordinates (m/2, −k) for some k > 0. Let h < √ D be 2 + h2 points at distance m > 1√from each other such that C is at distance 2 2 from A, D is at distance + h from B, and their midpoint M is at distance ( + k)2 + h2 from K, where < m.

If the destination sensor node quartz has a real frequency of f (1+θ) instead of f , its clock will have an advance of θL at time L. It is hence needed to start the preamble transmission θL in advance. Because the clock of the source might be late, the source must target a time 2θL in advance to L. Because the clock of the source might be early, and the clock of the destination late, the duration of the wake-up preamble must be of 4θL. If L is very large, 4θL may be larger that the sampling period TW .

8 mW, which is 70 times more than WiseMAC for L = 100. 1 · PR = 180 μW with 10% duty cycle). The power consumption of S-MAC and T-MAC increases with increasing traffic. For L = 100, WiseMAC consumes 7 times less than S-MAC or T-MAC at 10% duty cycle. When used at 1 % duty cycle, S-MAC and T-MAC are closer to WiseMAC in terms of power consumption, but are penalized by a hop delay respectively 10 and 6 times higher than what is provided by WiseMAC. The hop delay with S-MAC is approximately equal to the frame duration.

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Algorithmic Aspects of Wireless Sensor Networks: First International Workshop, ALGOSENSORS 2004, Turku, Finland, July 16, 2004. Proceedings by Viktor K. Prasanna (auth.), Sotiris E. Nikoletseas, José D. P. Rolim (eds.)


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