NIST helps develop first IEEE wireless personal area network standard. (General Developments).NIST (National Institute of Standards & Technology, Washington, DC, www.nist.gov) The standards-defining agency of the U.S. government, formerly the National Bureau of Standards. It is one of three agencies that fall under the Technology Administration (www.technology. contributed significantly to a new standard for wireless personal area networks (WPANs) approved by the Institute of Electrical and Electronics Engineers Not to be confused with the Institution of Electrical Engineers (IEE). The Institute of Electrical and Electronics Engineers or IEEE (pronounced as eye-triple-e (IEEE (Institute of Electrical and Electronics Engineers, New York, www.ieee.org) A membership organization that includes engineers, scientists and students in electronics and allied fields. ) on March 21, 2002. The approval of IEEE 802.15.1 was the long-awaited formal acceptance of the Bluetooth Special Interest Group The Bluetooth Special Interest Group (SIG) is the body that oversees the development of Bluetooth standards and the licensing of the Bluetooth technologies and trademarks to manufacturers. core specification by a recognized standards body. Although the Bluetooth core specification defines all the layers from the physical layer to the application layer, only the lower layers, which are considered within the scope of the IEEE 802 Medium Access Control and Physical layers, are included. This wireless technology operates in the 2.4 GHz frequency band and provides voice communications at 64 bit/s and data transfers up to 732 kbit/s at distances up to 10 meters. The technology is meant to be inexpensive, thus positioning itself for system integration as one of the pervasive computing technologies. NIST has been involved in this effort since the Bluetooth Special Interest Group first released the specifications and the IEEE 802.15 Working Group was formed. The work consisted of reviewing, verifying, and validating the protocols being defined. As a means to speed and ideally show the completeness and correctness of the protocols, NIST undertook the task of creating a formal description of the text prose using the ITU-T See ITU. ITU-T - International Telecommunications Union standardized formal description language called Specification and Description Language Specification and Description Language (SDL) is a specification language targeted at the unambiguous specification and description of the behaviour of reactive and distributed systems. It is defined by the ITU-T (Recommendation Z.100. (SDL) that was included as an informative annex in the standard. SDL uses a finite state machine See state machine. (mathematics, algorithm, theory) Finite State Machine - (FSM or "Finite State Automaton", "transducer") An abstract machine consisting of a set of states (including the initial state), a set of input events, a set of output events, and a state transition and describes the behavior in the form similar to a flow chart. This process generated thousands of comments and suggested changes that were incorporated in the Bluetooth specifications v1.1. In addition, NIST held editorship of several sub-clauses in the draft standard and participated in the creation of the Protocol Implementation Conformance Statement proforma. IEEE 802.15.1 is the first in a series of new WPAN technologies being developed in IEEE 802.15. Standards for higher (20 Mbit/s) and lower (250 kbit/s) rate WPANs are under development. See our website for more information: http://www.itl.nist.gov/pervasivecomputing.html. CONTACT: Nada Golmie, (301) 975-4190; nada.golmie@nist.gov or David cypher, (301) 975-4855; david.cypher@nist.gov. |
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