IEEE 802.19

IEEE 802.19

IEEE 802.19 is the Wireless Coexistence Technical Advisory Group (TAG) within the IEEE 802 LAN/MAN Standards Committee. The TAG deals with coexistence between unlicensed wireless networks. Many of the IEEE 802 wireless standards use unlicensed spectrum and hence need to address the issue of coexistence. These unlicensed wireless devices may operate in the same unlicensed frequency band in the same location. This can lead to interfernece between these two wireless networks.

Background

Two unlicensed wireless networks are said to "coexist" if they can operate in the same location without causing significant interfernece to one another. One of the first examples of wireless coexistence was between IEEE 802.11 and Bluetooth both operating in the 2.4 GHz ISM frequency band. Coexitence between these two wireless networks was addressed by the IEEE 802.15 Task Group 2 [ [http://www.ieee802.org/15/pub/TG2.html IEEE 802.15.2] ] ] , which produced a Recommended Practice on Coexistence of IEEE 802.11 and Bluetooth.

Overview

Currently the 802.19 TAG addresses coexistnece between wireless standards under development within IEEE 802. There are a number of working groups within IEEE 802 which are developing standards for unlicensed wireless network. These include

* IEEE 802.11 Wireless Local Area Networks (WLAN)
* IEEE 802.15 Wireless Personal Area Networks (WPAN)
* IEEE 802.16 Wireless Metropolitan Area Networks (WMAN)
* IEEE 802.22 Wireless Regional Area Networks (WRAN)

When a new standard (or ammendement to a standard) for an unlicensed wireless network is being developed the working group may develop a Coexistence Assurance (CA) document that is reviewed the IEEE 802.19 TAG.

The TAG is currently evaluating the coexistence between IEEE 802.11y and IEEE 802.16h, both operating in the 3650 MHz frequency band.

References

External links

* [http://www.ieee802.org/19/ Official web site]


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