WiFi and cellphones have been the darlings of the wireless stage, but in the coming years they could be sharing the spotlight with a technology called WiMAX.
Wireless networking remains a relative tortoise in comparison to the hares of the networking world that are wired with copper and fibre, offering a fraction of their throughput. But speed isn’t everything. Wireless can be cheaper and quicker to set up than pulling cables through an office or neighbourhood, and given their druthers (and the right mix of cost and capability), many users would likely opt for wireless over a fixed wired connection simply because of the mobility and convenience of cutting the network cord.
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WiMAX is intriguing because, among other things, it combines the fast data transfer rates of WiFi-type technology and the range of a cellphone network. And 2005 is an important time for WiMAX, since the first commercial products that incorporate it – albeit with somewhat limited applications – are scheduled to reach the market this year.
WiMAX is another name for the 802.16 standard, as defined by the Institute of Electrical and Electronics Engineers (IEEE), for building high-speed wireless networking products. Its backers include industry giants such as Intel, Alcatel, Nortel and Cisco. WiMAX is an Internet Protocol (IP)-based technology, which means all types of communication - from voice to data to video - can move as packets over the same network.
Experts say WiMAX will offer a potential rate of 75 megabits per second and a coverage distance of more than 50 kilometres.
Note the word “potential.” The technology is still being developed, and that kind of performance is, in truth, achieved under the most optimal of conditions.
Kelly Kanellakis, the former Canadian director of technology for a U.S.-based network equipment vendor, points out that the farther you extend the range of WiMAX, the slower the speed of transmission. As a result, the first iterations of WiMAX technology will likely provide something closer to about 2 megabits per second for “fixed” link connections, where the source and destination for the signal are both stationary.
“We’re at the beginning of the cycle,” admits Ann Sun, senior manager for wireless and mobility at Cisco Systems Inc., explaining that her company is watching the rise and development of WiMAX. “There’s a lot of excitement and promises … but until you get enough vendors supporting it and driving down the cost, there won’t be accelerated adoption.” But as products are built to the 802.16 specs and the technology is refined, things should improve dramatically, experts say.
WiMAX mobility products, designed for people on the move rather than communication between stationary fixed links, aren’t expected for at least four years. Even so, those businesses for whom a fixed-link, high-speed Internet connection is not currently available should definitely be watching WiMAX with interest in the short-term. This includes companies and/or branch offices located in rural and other areas where ISPs can’t economically deliver wired high-speed Internet services such as cable and DSL.