802.11n is the newest protocol for wireless networking. It is much faster than any of its predecessors (such as 802.11g and 802.11b), and there is talk of 802.11n replacing traditional wired Ethernet networks entirely, according to a Computer Weekly article by John-Paul Kamath, posted on October 8, 2007.
802.11n clocks in at a maximum theoretical speed of 248Mbps. This is much higher than the current standard of 802.11g which can reach a theoretical speed 54Mbps (in practice, both protocols operate slower, depending on network conditions). A large part of the advances in the 802.11n protocol is due to the addition of multiple-input multiple-output (MIMO) technology. This system uses multiple antennas to receive and transmit information, making the network operate faster.
