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Dual-band 802.11n tech offers multimedia apps

Posted: 10 Jan 2008     Print Version  Bookmark and Share

Keywords:802.11n  Wi-Fi  dual-band chips 

Broadcom Corp. has announced that its dual-band 802.11n technology is enabling new Wi-Fi products to offer multimedia capabilities that other solutions can only promise: simultaneous voice, video and data applications.

By utilising both the 2.4GHz and 5GHz frequency bands simultaneously, Broadcom claimed its Intensi-fi line of dual-band 802.11n products expand network capacity and enable consumers to get the most from their wireless networks.

Increasing network capacity is critical as hundreds of millions of wireless products compete for three non-overlapping channels in the 2.4GHz band. Broadcom's Intensi-fi technology provides 24 additional non-overlapping channels in the 5GHz band, which the company likens to opening an eight-lane freeway next to a crowded single-lane road. In addition to improving "traffic flow" on both roads, the freeway's additional capacity allows even the largest vehicles to travel at their top speeds by using lanes without other traffic. For Wi-Fi users, these large vehicles represent video applications, which require more throughput (10-20Mbps for each stream) and stronger connections to ensure a smooth video experience.

Intensi-fi technology promises better multimedia experience by boosting the performance and range of Wi-Fi products. Routers with Broadcom's single-chip 802.11n solution, the BCM4322, and GbE processor, the BCM4705, provide ample bandwidth for several HD video streams, plus VoIP calls, gaming and other multimedia applications. To maintain high-definition video connections throughout a home, Intensi-fi chips leverage a unique receiver architecture that is said to deliver the highest quality radio signals of any solution on the market. As a result, manufacturers can achieve superior performance with a 2x2 antenna configuration, without incurring additional costs for more antennas.

Intensi-fi solutions are used in the new Netgear RangeMax Dual-Band Wireless-N Router (WNDR3300), and in the Ultra RangePlus Dual-Band Wireless-N Gigabit Router (WRT600N) from Linksys, a division of Cisco.

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