Which IEEE standard describes wireless communication correct answer?

IEEE 802.11 is part of the IEEE 802 set of local area network (LAN) technical standards, and specifies the set of media access control (MAC) and physical layer (PHY) protocols for implementing wireless local area network (WLAN) computer communication.

What is IEEE standard for wireless network?

802.11a − This is an extension to 802.11 that pertains to wireless LANs and goes as fast as 54 Mbps in the 5-GHz band.

Wi-Fi – IEEE Standards.
Feature WiFi (802.11b) WiFi (802.11a/g)
PrimaryApplication Wireless LAN Wireless LAN
Frequency Band 2.4 GHz ISM 2.4 GHz ISM (g) 5 GHz U-NII (a)

What 3 areas are defined for the IEEE 802.11 standard?

What are the three areas defined for the IEEE 802.11 stanadrd? The IEEE 802.11 WLAN standard defines the physical layer, the medium access control layer, and the media access control management protocols and services.

What is the difference between 802.11 a 802.11 b 802.11 g and 802.11 n?

In basic terms, 802.11n is faster than 802.11g, which itself is faster than the earlier 802.11b. On the company website, Apple explains that 802.11n offers “greater performance, more range, and improved reliability”.

How wireless LANs operate and the 802.11 standards?

802.11 applies to wireless LANs and provides 1 or 2 Mbps transmission in the 2.4 GHz band using either frequency hopping spread spectrum (FHSS) or direct sequence spread spectrum (DSSS). … 802.11a uses an orthogonal frequency division multiplexing encoding scheme rather than FHSS or DSSS.

How many IEEE standards are used by wireless LAN?

WLAN Standards

There are currently four specifications in the family: 802.11, 802.11a, 802.11b, and 802.11g. All four use the Ethernet protocol and CSMA/CA (carrier sense multiple access with collision avoidance instead of CSMA/CD) for path sharing.

Which is better 802.11 b or g?

802.11b and 802.11g both work under the 2.4GHz frequency range. This means that they are inter-operable with each other. All 802.11g devices can communicate with 802.11b devices. The advantage of 802.11g is that you will be able to transfer files between computers or networks at much faster speeds.

What is IEEE 802.11a/b/g/n ac?

The generation of Wi-Fi that first signaled popular use, 802.11ac uses dual-band wireless technology, supporting simultaneous connections on both 2.4 GHz and 5 GHz Wi-Fi devices. 802.11ac offers backward compatibility to 802.11a/b/g/n and bandwidth rated up to 1300 Mbps on the 5 GHz band plus up to 450 Mbps on 2.4 GHz.

What is b/g n?

It denotes the channel and frequency band a WiFi device can operate in. 802.11 is IEEE Standard and b/g are frequency band while n is the capability to utilise multiple frequency bands to do multiple input multiple output. It’s a technology in wifi to get maximum throughput from a WiFi device.

What is band 2.4 GHz b/g n?

2.4 GHz WLAN/Wi-Fi Technology (802.11 b/g/n) uses the frequency band from 2401 to 2484 MHz. … Each of the WLAN / Wi-Fi Channels are spaced 5 MHz apart, except the last two channels which are spaced 12 MHz apart. Most of these channels (Channel 1 to Channel 11) can be used across the globe, except channels 12, 13 and 14.

Does 802.11 a/b/g/n support 5GHz?

Generally, a router that states it’s 802.11a/g/n, or 802.11ac will work at 5GHz. However, a router that is 802.11b/g/n has a slim chance of supporting that frequency, and you may need to upgrade. If your router supports 5GHz connectivity, the next thing to do is to check your adapter.

Is 20MHz better than 40MHz?

A 20MHz channel width is wide enough to span one channel. … In crowded areas with a lot of frequency noise and interference, a single 20MHz channel will be more stable. 40MHz channel width allows for greater speed and faster transfer rates but it doesn’t perform as well in crowded areas.

What is the maximum range of the IEEE 802.11 b wireless standard?

150 feet
802.11b. 802.11b used the same 2.4 GHz frequency as the original 802.11 standard. It supported a maximum theoretical rate of 11 Mbps and had a range up to 150 feet.

What is 802.11 a b/g wireless mode?

(Wireless) Mode

This setting controls the type of Wi-Fi devices (802.11a/b/g/n/ac) that can connect to the AP. For optimal performance and compatibility, enable support for all wireless modes. If configured for 11n mode only, legacy devices that support only 11a/b/g aren’t able to connect to the AP.

What two IEEE 802.11 wireless standards operate only in the 5 GHz range?

802.11ac
Whereas 802.11ac works only in the 5 GHz band, 802.11ax operates in both the 2.4 GHz and 5 GHz bands. While the 802.11ac standard allowed up to eight spatial streams, it cannot deliver more than 6.9 Gbps due to hardware limitations.

Which one is a characteristic of IEEE 802.11 b?

IEEE 802.11b: The 802.11b standard provides for a maximum transmission speed of 11Mbps. However, devices are designed to be backward-compatible with previous 802.11 standards that provided for speeds of 1, 2, and 5.5Mbps. 802.11b uses a 2.4GHz RF range and is compatible with 802.11g.

Which of the following are characteristic features of the IEEE 802.11n wireless standard?

Which of the following are characteristic features of the IEEE 802.11n wireless standard? Multiple Input / Multiple Output (MIMO) is a wireless technology that allows for significant increase in data throughput due to the use of multiple antennas and multiple data streams.

Which data transmission rate is defined by the IEEE 802.11 b wireless standard?

802.11b supports data transmission speeds up to 11 Mbps. The 802.11ac wireless networking standard provides increased bandwidth and communication speeds by using which o fthe following technologies? Channel bonding to combine more channels in the 5GHz band to allow for up to 160 MHz wide channels.

Which technology does the IEEE 802.11 specification describe?

Which technology does the IEEE 802.11 specification describe? IEEE 802.11 provides the standards for all kinds of Wireless Networks implementing Wireless LAN communication.

What type of waves are used for IEEE 802.11b wireless signals?

Wireless networks use two frequency bands – 2.4 and 5 GHz. 802.11b/g wireless networks operate on the 2.4 GHz band, 802.11a networks on the 5 GHz band and 802.11n networks on both the 2.4 GHz and 5 GHz bands. The frequency band used and operating limits may vary from country to country.