Advantages
The major advantages of Wireless N over any other wireless to date on the consumer market is that Wireless N offers high throughputs of up to 450 Mbps, and at a price many people can afford. Wireless N supports a new feature in the 2.4Ghz Spectrum that is called MIMO. The advantage of MIMO is that it allows for data to be both transmitted and recieved at the same time, unlike previous versions of 802.11 (Wireless Standards), and thereby allowing for speeds that immediately double all previously available speeds.A Modern Wireless Access Point

Source: My Brain