What is the channel configuration of 802.11n and how does it help achieve higher data rates?
What will be an ideal response?
One of the ways 802.11n is able to achieve high data rates is by using more bandwidth in both the 2.4 GHz and 5 GHz bands. IEEE 802.11a and 802.11g each consume 20 MHz of bandwidth to transmit using OFDM; 802.11b uses about 22 MHz of bandwidth. HT radios can support DSSS and OFDM in the ISM band, which means they can be configured to automatically use 20 MHz or 22 MHz of bandwidth and support communications with 802.11b and 802.11g devices. However, the higher speeds of up to 300 Mbps or 600 Mbps can only be achieved if the radios are configured to utilize 40 MHz of bandwidth.
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