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The current draft version of IEEE* 802.11n discusses channel bonding in both the 2.4GHz and 5GHz spectrums. Intel recommends and supports only 5GHz channel bonding. Implementing channel bonding requires an IEEE* draft 802.11n wireless adapter and router. Contact your router manufacturer for instructions on implementing channel bonding.
Intel® Wireless WiFi Link 4965AGN adapter settings for IEEE* draft 802.11n can be found here.
Current 2.4GHz (IEEE* 802.11b and 802.11g) and 5GHz (IEEE 802.11a) wireless systems use a single channel to send and receive information. Channel bonding allows the wireless system to use two channels at once. Using two channels improves the performance of the wireless connection from a maximum speed of 54Mbps to a maximum of 600Mbps.
A single channel is 20MHz in width. When two channels are bonded they are a total of 40MHz. It is possible to use either 20MHz or 40MHz channels with IEEE 802.11n.
The two channels are known as the primary or control channel and the secondary or extension channel. The primary/control channel performs the same functions as it would in a single channel mode by sending and receiving data. The secondary/extension channel is also able to send and receive data.
Due to regulatory issues not all countries allow 40MHz systems and channel bonding.
NOTE: Intel does not currently support channel bonding for the 2.4GHz spectrum (802.11b and 802.11g).
Why is 5GHz (IEEE 802.11a) the preferred frequency for channel bonding?
This applies to:
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