802.11a had a maximum theoretical throughput per stream of 54 megabits per second and operated on 5 gigahertz frequencies.

RFID tags communicate without a battery by capturing signals through the antenna, converting them to power, and transmitting back.

RFID is extensively used in manufacturing and inventory management for tracking inventory and managing assembly lines.

Wi-Fi 5 (802.11ac) introduces Multi-User MIMO technology to allow for more data transfer at the same time.

The 802.11a wireless standard operates at 54 megabits per second, which was considered fast at the time of its release in 1999.

802.11ac uses signaling modulation to increase the amount of data that can be transferred at any particular time.

NFC allows users to use their phone or smartwatch to pay for goods by associating credit cards with the NFC technology in their devices.

802.11g, released in 2003, is a backward-compatible upgrade to 802.11b with a maximum speed of 54 Mbps.

Active or powered RFID tags have a power source (battery) inside, unlike passive tags which do not.

802.11b operates in the 2.4 GHz range with a maximum speed of 11 Mbps.

The IEEE standards committee that is responsible for wireless network standards is the IEEE 802.11 committee.

NFC in mobile devices enables two-way conversations with other devices, such as making payments and pairing Bluetooth devices.

802.11ax or Wi-Fi 6 standard operates at both 2.4 gigahertz and 5 gigahertz frequencies and supports OFDMA technology.

802.11ax introduced OFDMA technology to improve communication efficiency in crowded areas.

802.11b had a maximum theoretical throughput of 11 megabits per second and operated at 2.4 gigahertz.

2.4 GHz frequencies are used by more devices, leading to potential frequency conflicts.

The range of a Wi-Fi access point using built-in antennas is about 40-50 meters.

802.11a operates at 5 GHz frequencies and has a shorter range due to signal absorption.

802.11ac supports Multi-User MIMO, allowing multiple users to communicate over multiple input and output simultaneously.

802.11n, released in 2009, operates in both 2.4 GHz and 5 GHz bands.

802.11n upgrades 802.11a, b, and g, offering a maximum theoretical throughput of 600 Mbps and introduces Multiple Input Multiple Output (MIMO) technology.

802.11ac operates exclusively in the 5 GHz band, supports up to 160 MHz of channel bandwidth, and offers a maximum total throughput of nearly 7 Gbps.

Access badges typically use flat RFID tags with the antenna around the outside and the RFID chip in the middle.

802.11ax has a maximum theoretical throughput of 9.6 gigabits per second and operates at both 2.4 gigahertz and 5 gigahertz frequencies.

The 802.11a standard operates exclusively in the five gigahertz frequency range.