what is the maximum data rate for the 802.11a standard select one
54 Mbit/s
title: IEEE 802.11a-1999 text: ratified in 1999. 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 Mbit/s if required. 802.11a originally had 12/13 non-overlapping channels, 12 that can be used indoor and 4/5 of the 12 that can be used in outdoor point to point configurations. Recently many countries of the world are allowing operation title: IEEE 802.11b-1999 text: IEEE 802.11b-1999 IEEE 802.11b-1999 or 802.11b, is an amendment to the IEEE 802.11 wireless networking specification that extends throughput up to 11 Mbit/s using the same 2.4GHz band. A related amendment was incorporated into the IEEE 802.11-2007 standard. 802.11 is a set of IEEE standards that govern wireless networking transmission methods. They are commonly used today in their 802.11a, 802.11b, 802.11g, 802.11n and 802.11ac versions to provide wireless connectivity in the home, office and some commercial establishments. 802.11b has a maximum raw data rate of 11 Mbit/s and uses the same CSMA/CA media access method defined in the original standard. title: Evolved High Speed Packet Access text: ms. So for example Cat 10 can decode 27,952 bits/2 ms = 13.976 MBit/s (and not 14.4 MBit/s as often claimed incorrectly). Categories 1-4 and 11 have inter-TTI intervals of 2 or 3, which reduces the maximum data rate by that factor. Dual-Cell and MIMO 2x2 each multiply the maximum data rate by 2, because multiple independent transport blocks are transmitted over different carriers or spatial streams, respectively. The data rates given in the table are rounded to one decimal point. Dual-Carrier HSUPA, also known as "Dual-Cell HSUPA", is a wireless broadband standard based on HSPA that is defined in title: IEEE 802.11 text: frequencies, such as the U.S. 900 MHz ISM band. Legacy 802.11 with direct-sequence spread spectrum was rapidly supplanted and popularized by 802.11b. 802.11a, published in 1999, uses the same data link layer protocol and frame format as the original standard, but an OFDM based air interface (physical layer). It operates in the 5 GHz band with a maximum net data rate of 54 Mbit/s, plus error correction code, which yields realistic net achievable throughput in the mid-20 Mbit/s. It has seen widespread worldwide implementation, particularly within the corporate workspace. Since the 2.4 GHz band is heavily used to the point title: IEEE 802.11ay text: for service providers. 802.11ay should not be confused with the similarly named 802.11ax that is also set to be released in 2019. Although they boast similar speeds, the 802.11ay standard is designed to reach farther and run at much higher frequencies. The lower frequency of 802.11ax prevents it from reaching these distances but enables it to penetrate walls, something that the 11ay standard struggles to do. Draft version 0.1 of 802.11ay was released in January 2017, followed by draft version 0.2 in March 2017. Draft version 1.0 was made available in November 2017, and draft 1.2 was available as of