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The 802.11a standard uses the same core protocol as the original standard, operates in 5 GHz band, and uses a 52-subcarrier orthogonal frequency-division multiplexing (OFDM) with a maximum raw data rate of 54 Mbit/s, which yields realistic net achievable throughput in the mid-20 Mbit/s. The data rate is reduced to 48, 36, 24, 18, 12, 9 then 6 ...
IEEE 802.11 standard specifies a 2.4 GHz operating frequency with data rates of 1 and 2 Mbps using either Direct Sequence Spread Spectrum (DSSS) or Frequency Hopping Spread Spectrum (FHSS). The IEEE 802.11a standard specifies an OFDM physical layer (PHY) that splits an information signal across.
6 mar 2024 · 802.11b, often known as 802.11 High Rate or Wi-Fi, is a standard set by IEEE as an enhancement to the original 802.11. This standard enables wireless LANs to transmit at 11 Mbps, though it can reduce to 5.5, 2, or 1-Mbps when necessary, and operates in the 2.4 GHz frequency band.
17 mar 2021 · IEEE 802.11a –. This standard is developed in 1999. 802.11a is useful for commercial and industrial purposes. It works on a 5 GHz frequency. The maximum speed of 802.11a is 54 Mbps. This standard was made to avoid interference with other devices which use the 2.4 GHz band. IEEE 802.11b –. This standard also created with 802.11a in 1999.
Abstract: Changes and additions to IEEE Std. 802.11-1999 are provided to support the new highrate physical layer (PHY) for operation in the 5 GHz band. Scope: To develop a Higher Speed PHY for use in fixed, moving or portable Wireless Local Area Networks.
16 maj 2023 · IEEE 802.11ax™, or Wi-Fi 6, is the most recent standard in the series, published in 2021, and devices based on it are now being deployed in billions of devices per year. Although its theoretical data rate is 9.6 Gbit/s, this standard isn’t primarily about boosting Wi-Fi speeds per se.
Figure 1. The 802.11 standards have enabled millions of electronic devices to exchange data or connect to the internet wirelessly using radio waves. The key advantage of IEEE 802.11 devices is that they allow less-expensive deployment of Local Area Networks (LANs).
