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:

    Or seen the furrows shine but late upturned,
    And where the fieldfare followed in the rear,
    When all the fields around lay bound and hoar
    Beneath a thick integument of snow.
    So by God’s cheap economy made rich
    To go upon my winter’s task again.
    Henry David Thoreau (1817–1862)

    Belonging to a group can provide the child with a variety of resources that an individual friendship often cannot—a sense of collective participation, experience with organizational roles, and group support in the enterprise of growing up. Groups also pose for the child some of the most acute problems of social life—of inclusion and exclusion, conformity and independence.
    Zick Rubin (20th century)

    Whoever thinks his friend more important than his country, I rate him nowhere.
    Sophocles (497–406/5 B.C.)