WLANs and PANs
The popularity of wireless LANs continues to grow as the mobile workforce demands access to corporate data while on the go. In fact, “more than 21 million Americans will be using public wireless local area networks (WLANs) in 2007, attracted by the cheap and superfast remote Internet access provided in airports, shopping malls, coffee bars, and hotels,” according to a report by Analysys. Typically, end-users access wireless LANs through laptops or PDAs in offices, airports, hotels, or even their own homes. “The appeal of these services means that the number of hotspot locations in the U.S. will grow from 3,700 this year to 41,000 by 2007,” said Monica Paolini, a coauthor of the report. “This will, in turn, generate over $3 billion in service revenues.” The development of the WLAN market has been spurred on by the industry-wide adoption of a common technical platform based on the IEEE 802.11 standard, which we’ll discuss shortly.
IEEE 802.11
In the wireless LAN market, the main technology driver has been the IEEE (Institute for Electrical and Electronics Engineers) 802.11 standard. The IEEE standards body has approved or is in the process of approving and standardizing three wireless LAN standards: 802.11b, 802.11a, & 802.11g. The primary differences among the standards can be easily described as follows:
- IEEE 802.11b Standard. The 802.11b standard operates at a maximum of 11 Mbps bandwidth range. 802.11b is in rather high demand at the current time as 2.5G and 3G networks are being implemented. 802.11b is absolutely not considered a replacement for these latter generation networks, but at the same time is an admirable substitute. Many of the areas in which 802.11b, also called WiFi, is being marketed are hotels, airport terminals, businesses, coffee shops, and homes. All of the previous locations for leveraging this technology are turning out to be very promising because they are also locations at which 3G phones and devices would be used. Also, because laptops and PDAs are extremely rich in functionality and Internet capability, 802.11b is causing quite a stir in the marketplace.
Taken From : Enterprise Guide to Gaining Business Value from Mobile Technologies
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