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[May 28, 2004]

 

Power-Line Networking Technology:

The Perfect Companion to Wi-Fi

 

BY JAY CHENG


Electrical outlets found on virtually every wall of every home in America are poised to revolutionize home networking. Power-line networking, which allows data to ride on electrical wiring at speeds up to 14 Mbps, appeared to be killed off by cheap 802.11 (news - alert) -based wireless networking solutions in early 2002. But a new crop of standardized, low-cost power-line routers and Ethernet and USB adapters are poised to create a highly effective networking environment for homes and businesses by complementing existing 802.11, or Wi-Fi (define - news - alert) networks.

According to research firm InStat MDR (news - alert), home networking entered the mainstream in 2003 and in early 2004, as droves of broadband users installed home networks to share Internet connections. InStat MDR estimates that the continued need for broadband sharing and an exploding interest in entertainment networking will drive the total value of equipment with a home networking connection of some type from $8.3 billion in 2004 to $17.1 billion by 2008. Likewise, the majority of enterprise IT (define - news - alert) budgets is going toward local and wide-area networking to accommodate highly distributed workforces that require access to centralized corporate information.

Most users are turning to wireless networking based on some flavor of 802.11 for their computer networking needs. According to Jupiter Research, the percentage of U.S households using 802.11 is expected to reach 8% in 2004, twice the percentage in 2003. The biggest advantage of 802.11 is its simplicity. One can connect computers anywhere in the home or office without the need for wires. The computers connect to the network using radio signals that provide coverage of 150 feet in every direction.

Yet 802.11 networking technology alone is not the perfect solution. While many 802.11 signals can travel farther than 150 feet, the radio waves tend to degrade when they attempt to travel through the walls of a home or office. Users have to move the 802.11 adapter around until they receive a better signal to the gateway, if possible at all. Often signal speeds can be as slow as 2 Mbps and are subject to intermittent signal dropouts. A recent Wall Street Journal article[1] highlighted users’ frustration over various Wi-Fi dead spots. It seems those who cut the computer wires expect to access the Internet, share printers, files and gaming sessions in their bedrooms, attics, basements and garages.

Power-line networking, based on HomePlug PowerLine Specification 1.0.1 (news - alert), is increasingly being touted as a perfect companion to Wi-Fi networks. HomePlug hardware easily extends the reach of 802.11 networks to the outer areas of the office or home. All users must do is plug power-line adapters into their nearest electrical outlets to form a network over their home electrical wiring. The network is entirely self-discovering and self-configuring with transmission rates of up to 14 Mbps that incorporate powerful 56-bit DES (define - news - alert) encryption that is configured in the hardware, not through additional software installations.

Older product versions of power-line networking technology were expensive, slow and non-standardized, resulting in the belief that Wi-Fi networks would trump the need for power-line networking forever. Today, power-line networking devices cost less than $100 and are offered by some 14 different manufacturers. The beauty of such products is their true plug-and-play nature and their ability to operate using any electrical outlet, regardless of how old the electrical wiring is without degrading the existing power supply.

Many analysts agree that the home network of the future will not encompass a single technology solution. The growth of broadband services is exploding as computer users are quickly growing accustomed to the integration of the Internet into every aspect of their lives. Homes with multiple personal computers, Internet devices and smart appliances require ubiquitous connection to the web. Using power-line networking technology as the home local area network backbone, roaming from one WLAN (define - news - alert) to another, from room to room, from the basement to the attic is a reality.

 A Jupiter Research study[2] concluded that no single standard or network type will dominate the industry, despite the hype surrounding 802.11 networking. “Rather, consumers will make their choice based on a variety of factors, including convenience, price and ease of installation.”

A recent white paper from Parks Associates and Global Inventures[3] indicates that “wireless and wired backbone hybrid networking solutions will be one situation where different connectivity solutions work in concert to deliver greater flexibility and value to the end user.”

Power-line networking technology is ushering in a new type of home networking: entertainment networking. Imagine a home theater that feeds audio to its speakers via power lines, making speaker wires unnecessary, a security camera that is immediately connected to a computer simply by plugging in the device or a television that automatically connects to the cable box, the DVD player, the digital video recorder the home theater system and even the Internet once it’s connected to an electrical outlet. That is the reality of the HomePlug AV standard, which is being developed by the HomePlug Powerline Alliance to enable audio and video streams to be sent over power line. This technology will be built in to a wide variety of consumer electronics enable the distribution of data and multi-stream entertainment throughout the home, including high definition television and standard definition television, and is designed to co-exist with

 

[1] Wall Street Journal, Roaming Around the House, Setting up Wi-Fi Gets Easier, But It’s Not all Wireless; Devices to Stop Dead Spots, March 5, 2004.

 

[2] Jupiter Research, Home Networking: Seizing Near-Term Opportunities to Extend Connectivity to Every Room, July, 2002.

 

[3] Kurt Scherf (Parks Associates) and Deepak Kamlani (Global Inventures), Connected Solutions: Landscape and Supply Side Analysis, May 2003

 

 

Jay Cheng is chief executive officer of GigaFast Ethernet, a leading manufacturer of networking products for home and small office/home office (SOHO) users. Focused on innovative design and ease of use, GigaFast designs and develops products that enable users to easily share not only Internet access, peripherals, and digital content, but also applications among multiple PCs and other Internet-enabled devices. GigaFast has offices in Los Angeles, CA, Taipei, Taiwan and ShenZhen City, China.

 

 

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