Power Consumption Assessment in Wireless Sensor Networks & Wireless sensor node and network architecture 1. Introduction Wireless Sensor Networks (WSNs) are an emerging technology with a wide range of potential applications. A large number of nodes, with sensing and wireless communications capabilities, deployed in an area of interest, build a WSN. Thanks to the advances in MEMS (Micro Electronics Mechanical Systems) it is nowadays possible to realize small and cheap devices, capable of wireless communication. WSNs differ from other wireless technologies because of a set of specific requirements and characteristic features, including for instance node density, energy requirements, and computing capabilities. The Institute of Electrical and Electronics Engineers (IEEE) classify network technologies by such characteristics. Usually the WSNs are limited to 1Mbps of data rate and 1km of wireless coverage. The actual limit of such quantities depends on the adopted technologies and constraints introduced by specific applications. A set of WSNs specifications, dealing with both network operation and node architectures is described in the IEEE Standard 802.15 and 1451 family.
Posted on: Sat, 08 Mar 2014 03:33:41 +0000
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