IEEE 802.11b-1999 or 802.11b is an amendment to the IEEE 802.11 wireless networking specification that extends throughout up to 11 Mbit/s using the same 2.4 GHz band. A related amendment was incorporated into the IEEE 802.11-2007 standard.

2024年6月28日 · 802.11b (Wi-Fi 1) IEEE expanded on the original 802.11 standard in July 1999, creating the 802.11b specification. 802.11b supports a theoretical speed of up to 11 Mbps. A more realistic bandwidth of 2 Mbps (TCP) and 3 Mbps (UDP) should be expected.

802.11b, 802.11g, and 802.11n-2.4 utilize the 2.400–2.500 GHz spectrum, one of the ISM bands. 802.11a, 802.11n, and 802.11ac use the more heavily regulated 4.915–5.825 GHz band. These are commonly referred to as the "2.4 GHz and 5 GHz bands" in most sales literature.

2023年10月23日 · From 802.11b to Wi-Fi 7: What Do Wi-Fi Numbers Mean? Higher numbers—like Wi-Fi 6 instead of 5—usually mean faster internet, but not always. Here's how to tell them apart and which one you ...

2022年12月27日 · Although 802.11 was the first WLAN standard ever, it was 802.11b which made Wi-Fi popular. 2 years after 802.11, in September 1999, 802.11b was released. While it still used the same radio signaling frequency of 802.11 (about 2.4 GHz), the speed went up from 2 Mbps to 11 Mbps.

2019年3月20日 · 802.11b is one of several Wi-Fi standards developed by the Institute of Electrical and Electronics Engineers (IEEE). It was released in 1999 along with 802.11a as the first update to the initial 802.11 specification, published in 1997.

The IEEE 802.11b is a Direct Sequence Spread Spectrum (DSSS) system very similar in concept to the CDMA Wireless, using a spread spectrum chip sequence. In the 802.11b the transmission medium is wireless and the operating frequency band is 2.4 GHz. 802.11b provides 5.5 and 11 Mbps payload data rates in addition to the 1 and 2 Mbps rates ...

2024年12月30日 · This article delves into the various 802.11 standards, with particular emphasis on 802.11be, 802.11ax, 802.11ac, 802.11b/g/n, and 802.11a, enabling a comprehensive understanding of their differences and implications for users.

1999年9月16日 · Compared to IEEE Std 802.11™-REVme, it enhances the Fine Timing Measurement protocol to make use of 320 MHz wide channels available with the IEEE 802.11be PHY and MAC. This amendment defines modifications to both the IEEE Std 802.11 physical layer (PHY) and the IEEE Std 802.11 Medium Access Control (MAC).

2000年1月20日 · Defines an OSI management-compatible architec-ture, and services and protocol elements for use in a LAN/MAN environment for performing remote management.