Samsung Electronics' Galaxy S4 smartphone supports 802.11ac -- also known as Gigabit Wi-Fi -- a new standard that will enable wireless networks to transmit as fast as 1.3 gigabits per second via in-home routers. Hurdles remaining include the need for smartphone users to buy routers that support the standard and the need to embed more powerful chips in wireless devices, said chip maker Broadcom. But the standard "addresses a lot of issues, mainly on the infrastructure side. Basically, the amount of data traversing through the home today is taxing prior generations" of equipment, Wunderlich Securities analyst William Harrison said.

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