What Is The Maximum Transmission Power For Ieee Wlans?
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What Is the Maximum Transmission Power for IEEE WLANs?
Answer: The maximum transmission power for the WLANS of IEEE is considered to the 200 milliwatts (mW).
IEEE standard which is also known as the WIFI contains the architecture and the characteristics of (WLANs) wireless LANs. To connect with the nodes, it uses high frequency. Some of the IEEE WLANs standards such as 802.11,802.11a,802.11b,802.11g,802.11n, and 802.11p are described below. All of them use CSMA/CA transmission.
IEEE 802.11:
It is the oldest version of the standard and was released in 1997, the transmission rate is around 1 Mbps to 2Mbps in the bandwidth of 2,4 GHz.it uses either frequency-hopping spread spectrum or DSSS.
IEEE 802.11a:
It was released in 1999 and contain modification as compared to 802.11 along with an OFDM interface rather than FHSS or DSSS. The data transmission rate along with 5 GHz bandwidth is 54Mbps.it also contains the error correction code.
IEEE 802.11b:
It is the extension of the 802.11 and was released in 2000, the modulation method is the same as the original version. The bandwidth is 2.4GHz the only difference is that the data transmission rate is 11Mbps rather than 2 Mbps and that’s why it is adaptable to WLANs.it can face hindrance from other devices because the bandwidth is crowded.
IEEE 802.11g:
It was published in 2003. the band is 2.4 GHz but the transmit power rate is about 22mbps. the modulation technique in it is OFDM .it is compatible with 802.11. Due to its operation being 2.4GHz it can also face disturbance.
IEEE 802.11n:
It was the standard which is published in 2009 and works on both 2.1 GHz and 5GHz bandwidths. The data transmission rate may vary from 54 Mbps to 600Mbps.it contains the modification from the previous version by containing the MIMO antennas.
IEEE 802.11p:
It is the alteration by having the WAVE (wireless access in the vehicular environment) assist the ITS. It has the communication among the vehicles and the environment. The data transmit rate is about 27Mbps with a bandwidth of 5.9 GHz.