802.16

(redirected from 802.16-2004)

802.16

A family of IEEE standards for wireless broadband access (BWA). Approved in 2002, and also known as "WiMAX," 802.16 provides up to 300 Mbps of shared point-to-multipoint transmission in the 10 to 66 GHz frequency bands as far as 18 miles. The WiMAX Forum (www.wimaxforum.org) promotes the 802.16 standards using the OFDMA air interface below 11 GHz and provides interoperability certification. At frequencies below 11 GHz, signals can penetrate walls and other dense objects. See Xohm, WiMAX, Wi-Fi, WiBro and 802.11.

Last Mile and Networks
The 802.16 standard was designed to bring wireless broadband into buildings from an ISP or other carrier, offering an alternative to wired T1, cable and DSL lines in the last mile. It can also be used to provide high-speed connectivity between Wi-Fi networks across large campuses as well as create a "wireless metropolitan access network" (WMAN) throughout a city or suburb. The mobile version of WiMAX competes with LTE, the 4G cellular technology (see IMT-Advanced).

802.16-2009 - Fixed and Mobile WiMAX 1
The 802.16-2009 standard includes previous 802.16-2004 fixed and 802.16e mobile versions, among others, and supports the WirelessMAN-SC air interface in the 10-66 GHz range. WirelessMAN-SC is not supported by WiMAX. The first fixed standard was 802.16-2001.

802.16e - Mobile WiMAX 1
The 802.16e standard was the first 802.16 mobile version. It allows people to communicate in the 2-6 GHz band while riding in cars and trains up to 75 mph. Voice over IP (VoIP) is also supported.

802.16m - Mobile WiMAX 2
Submitted as an IMT-Advanced standard, 802.16m increases the shared channel to a maximum of 300 Mbps and allows people to communicate while traveling in high-speed trains up to 200 mph. The ITU has designated both WiMAX 1 and WiMAX 2 as 4G technologies. See IMT-Advanced.
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References in periodicals archive ?
[3] IEEE Standard for Local and Metropolitan Area Networks Part 16: Air Interface for Fixed Broadband Wireless Access Systems," IEEE Std 802.16-2004 (Revision of IEEE Std 802.16-2001), vol., no., pp.
The IEEE 802.16-2009 standard [1] (merging 802.16-2004 and 802.16e/f/g/i) provides three different power saving classes (PSCs) in power saving mechanism (PSM) for sleep mode usage.
[2] IEEE, "IEEE standard for local and metropolitan area networks part 16: air interface for fixed broadband wireless access systems" IEEE Std 802.16-2004, 2004, (Revision of IEEE Std 802.16-2001).
[6] IEEE Std 802.16-2004.IEEE standard for local and metropolitan area networks part16: air interface for fixed and mobile broadband wireless access system February 2004.
The IEEE 802.16-2004 standard [1] supports the following two operating modes of the Medium Access Control (MAC) sublayer: a) point to multipoint (PMP) mode, where traffic occurs only between the Base Station (BS) and Subscriber Stations (SSs), and b) mesh mode, where traffic can be routed through other SSs and can occur directly between SSs.
Current IEEE 802.16 standards include: IEEE 802.16, IEEE 802.16a, IEEE 802.16c, IEEE 802.16-2004 (IEEE 802.16d), IEEE 802.16-2005 (IEEE 802.16e), and so on [7].
It is based on two IEEE standards - the 802.16-2004 "fixed" WiMAX standard, also known as 802.16d; and the 802.16e-2005 "mobile" WiMAX standard, also known as 802.16e.
Aperto's PacketMAX 5000 base station can support and operate both the IEEE 802.16-2004 and IEEE 802.16-2005 WiMAX standards simultaneously, as well as licensed and license-exempt frequencies.
WiMAX comes in two flavors: the fixed version which specifies profiles based on the WirelessMAN-OFDM PHY from the 802.16-2004 standard and the mobile version based on the WirelessMAN-OFDMA PHY from the 802.16e-2005 amendment.
There are two types of WiMAX: fixed WiMAX (IEEE 802.16-2004) that targets fixed communication in areas where there is difficulty using optical and DSL lines, and mobile WiMAX (IEEE 802.16e-2005) that targets high-speed mobile communication.