Algorithmic Aspects of Wireless Sensor Networks: First by Viktor K. Prasanna (auth.), Sotiris E. Nikoletseas, José D.

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

This quantity includes the contributed papers and invited talks awarded on the 1stInternationalWorkshoponAlgorithmicAspectsofWirelessSensorNetworks (ALGOSENSORS 2004), which was once held July sixteen, 2004, in Turku, Finland, - positioned with the thirty first foreign Colloquium on Automata, Languages, and Programming (ICALP 2004). instant advert hoc sensor networks became an important study topic as a result of their strength to supply varied providers in different appli- tions. the belief of sensor networks calls for extensive technical study and improvement e?orts, specially in power-aware scalable instant advert hoc c- munications protocols, as a result of their strange program requisites and critical constraints. however, an exceptional theoretical heritage turns out worthwhile for sensor networks to accomplish their complete power. it truly 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 mess ups, pose new layout, research and implementation demanding situations. This occasion is meant to supply a discussion board for researchers and practitioners to offer their contributions on the topic of all elements of instant sensor networks. themes 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. – communique protocols. – Media entry regulate in sensor networks. – Simulators for sensor networks.

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

Example text

It can be seen that all protocols have a relatively low energy efficiency in low traffic conditions. Each protocol is associated with a constant minimum power consumption, even in the absence of traffic. With WiseMAC and BPS, this minimum overhead is the sampling activity. With S-MAC and T-MAC, it is the cost of periodically listening to the channel. When the traffic increases, the energy efficiency increases, as this overhead is shared among more packets. With WiseMAC and BPS, there is additionally the overhead of the wake-up preamble.

We also discuss the consequences of our result and present open problems. 1 Introduction Localization is the process by which the positions of the nodes in an ad-hoc network are determined. , [18]), and event detection depend on location. Although localization can be achieved through manual configuration or by exploiting the Global Positioning System (GPS) [15], neither methodology scales well and both have physical limitations. For example, GPS receivers are costly both in terms of hardware and power requirements.

The performance of the WiseMAC protocol has been studied using both a regular lattice topology with traffic flowing in parallel and a typical sensor network topology with randomly positioned sensors forwarding data towards a sink. 24 A. -D. Decotignie The interest of a lattice topology [7] with traffic flowing in parallel is that it allows exploring the behavior of a MAC protocol without inserting aspects linked to routing, load balancing and traffic aggregation. The regularity of the topology allows deriving mathematical expressions to approximate the power consumption.

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