IEEE 802.15 - Task Group 4: Low Rate WPAN

Task Group 4: Low Rate WPAN

IEEE 802.15.4-2003 (Low Rate WPAN) deals with low data rate but very long battery life (months or even years) and very low complexity. The standard defines both the physical (Layer 1) and data-link (Layer 2) layers of the OSI model. The first edition of the 802.15.4 standard was released in May 2003. Several standardized and proprietary networks (or mesh) layer protocols run over 802.15.4-based networks, including IEEE 802.15.5, ZigBee, 6LoWPAN, WirelessHART, and ISA100.11a.

Read more about this topic:  IEEE 802.15

Famous quotes containing the words task, group and/or rate:

    “... the task of youth is not only its own salvation but the salvation of those against whom it rebels, but in that case there must be something vital to rebel against and if the elderly stiffly refuse to put up a vigorous front of their own, it leaves the entire situation in a mist.”
    —Jane Addams (1860–1935)

    “My routines come out of total unhappiness. My audiences are my group therapy.”
    —Joan Rivers (b. 1935)

    “We all run on two clocks. One is the outside clock, which ticks away our decades and brings us ceaselessly to the dry season. The other is the inside clock, where you are your own timekeeper and determine your own chronology, your own internal weather and your own rate of living. Sometimes the inner clock runs itself out long before the outer one, and you see a dead man going through the motions of living.”
    —Max Lerner (b. 1902)