We are familiar with 802.11a, b, g wireless technology which has been widely deployed in hotspots or home as a LAN (Local Area Network) connectivity. Even some of us have already moved to 802.11n with higher data bandwidth as an improved version utilizing MIMO (Multiple-In Multiple-Out) technology. While all these offer wider network coverage with higher data throughput, it also create a non-environmental friendly condition when such a huge power is being drawn during continuous wireless transmission on the air. In considering such condition, IEEE community has drafted a next generation Wi-Fi standard that is mainly focused on maintaining a green environment by reducing power wastage on the air.

The preliminary work on this standard was started since 2004. Although it is expected to be completed by 2010, but some solid features especially emphasizing on power saving has already been defined. One of the most attractive features include a wireless Network Management Sleep Mode that enable longer hibernate duration of a wireless device for greater power saving as compared to conventional router or wireless devices. Besides ability of putting the wireless networking device into idle mode, the protocol is also capable to wake it up any 802.11v compliance products through “Wake on WLAN” wirelessly without user intervention.Others than power saving features, it also features with new station management features that strengthen network performance and eventually enhances the security and emergency services. Hopefully it wouldn’t take too long for the industry to come out with an actual 802.11v compliance products in short future.

The next-generation of wi-fi technology has finally been approved for use, despite being on sale in laptops and other equipment for several years.The 802.11n technology, as it is known, was ratified by the IEEE, a body that oversees all wi-fi standards.It was conceived seven years ago and offers speeds at least six times faster than current approved technology.

Electronics firms have sold PCs and routers using the standard for many years, labelled "802.11n draft".But without the IEEE's approval, there were no guarantees that future networking equipment would be compatible with the devices.The IEEE's rubber stamp has changed that.All existing draft 802.11n wi-fi products will work with the final standard, according to the Wi-Fi Alliance, a group that tests wireless products to ensure compliance.

The 802.11n technology offers speeds of at least 300 megabits per second (Mbps), many times higher than the previous 802.11g, which operates at speeds of up to 54 Mbps.It is also able to transfer data over distances of 90m (300ft) indoors, double that of previous technologies.