2. Main IEEE 802.11 amendments
Some amendments were strongly supported by manufacturers of wireless cards and access points. These include amendments b, a and g. The most popular wireless cards sold in France are probably 802.11b/g cards.
2.1 IEEE 802.11b: towards 11 Mbit/s throughput
This amendment was published at the end of 1999. It proposes an extension to one of the physical layers defined in the IEEE 802.11-1999 standard in the 2.4 GHz frequency band. The extension, called HR/DSSS (High Rate Direct Spread Sequence Spectrum), is defined for the DSSS physical layer proposed in 802.11-1999. This extension uses a coding scheme that results in physical data rates of 5.5 and 11 Mbit/s. This physical layer uses the same physical preamble and header. This enables interoperability with the...
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Main IEEE 802.11 amendments
Bibliography
Standards and norms
- Standard Specification for Telecommunications and Information Exchange Between Roadside and Vehicle Systems – 5 GHz Band Dedicated Short Range Communications (DSRC) Medium Access Control (MAC) and Physical Layer (PHY) Specifications - ASTM E2213-03 - 08-03
- IEEE Standard for Local and metropolitan area networks : Media Access Control (MAC) Bridges - IEEE 802.1D-2004 - 06-04
- IEEE Standard for Local and metropolitan...
Websites
IEEE 802.11n, 802.11p and 802.11s subgroup status http://grouper.ieee.org/groups/802/11/Reports/tgn_update.htmhttp://grouper.ieee.org/groups/802/11/Reports/tgp_update.htm
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