IEEE 802.11b-1999
Part 11: Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) specifications: Higher Speed Physical Layer (PHY) Extension in the 2.4 GHz band
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About This Item
802.11b-1999 is a wireless LAN standard for the 2.4 GHz band, defining a higher-speed physical layer extension within the 802.11 MAC and PHY framework. It addresses how compatible devices can exchange data over radio links with improved throughput for communication, networking, and broadcast technologies. For engineers, procurement teams, and compliance reviewers, this standard provides a clear reference for evaluating legacy WLAN equipment and confirming that implementations align with the intended physical-layer requirements.
802.11b-1999 overview
This specification sits within the IEEE 802.11 family and focuses on the physical layer extension that enabled faster wireless local area networking in the 2.4 GHz range. 802.11b-1999 defines the technical basis for radio operation alongside the MAC structure used by 802.11 systems, helping ensure interoperability between devices designed for the same WLAN environment. As a superseded standard, it is still useful for understanding older equipment, legacy deployments, and historical compliance requirements tied to early Wi‑Fi design.
Typical use cases
802.11b-1999 is commonly relevant when reviewing older wireless access points, client adapters, embedded networking modules, and test setups built around early 2.4 GHz WLAN technology. It may also be used in documentation for legacy office networks, industrial devices, or laboratory verification work where compatibility with the original physical-layer extension matters. For teams maintaining older communication systems, the standard helps define the expected radio behavior and performance baseline for that generation of equipment.
Why this standard matters
This standard matters because it gives a stable technical reference for design control, interoperability checks, and procurement decisions involving legacy wireless LAN hardware. When evaluating older products, 802.11b-1999 can help reduce ambiguity in performance claims and support consistent testing against the intended PHY requirements. It is also valuable for risk management in maintenance programs, where knowing exactly which WLAN variant is being supported can prevent mismatched components and avoid compatibility issues.
- 2.4 GHz wireless LAN PHY extension
- Part of the IEEE 802.11 framework
- Superseded legacy WLAN specification
- Relevant to older access points and adapters
- Useful for compliance and interoperability review
- Publication Date: 2000
- Standard Status: Superseded
- Publisher: IEEE
- Subject: Communication, Networking and Broadcast Technologies
- Official IEEE: Doi link
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