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No more wiring old buildings, no more leasing cable, no more tricky licenses with the state. From cell phones to Palm Pilots, wireless networks have become a staple in our culture. Schools are finding many benefits to this type of networking. Wireless networks, which were historically considered to be too "high-end" for many K-12 schools, have now become an affordable and practical way to link computers to each other and the Internet.

Wireless WANs and LANs offer many of the same benefits of cable and fiber optic networks. Schools can connect all desktop computers to one main server via local hubs in computer areas. These hubs are wirelessly connected to this main server using radio frequency (commonly used by schools), infrared, microwaves or cellular technologies. The advantage of using this type of network is that any new software will only need to be installed and maintained from one main server, rather than on each individual workstation. Wireless networks enable educators and students to access all networked software and files, including the library automation system, as well as Internet and e-mail. A password-protected software security system is often installed to prevent inappropriate accessing of files and websites.

The biggest benefit of going wireless is that schools no longer have to build new sites just to accommodate a wired network. Installing a traditional wired network often requires obtaining prior permission and licenses from the county or state before any work can begin. Some older buildings have dangerous asbestos that prevents wiring. Wired networks also require an FCC license whereas wireless networks do not. Wireless networks are a one-time cost, so there are no more leasing charges from the telephone company. These re-occurring leasing costs can be high, especially with a 100-megabyte network.

Setting up the Wireless Network Before you get started, choose a network vendor who can guide your school throughout the entire process, from end to end. Using one vendor will help ensure that your implementation is seamless and will reduce the risk that an essential piece of the total solution is overlooked. The vendor you choose should also be able to offer follow-up technical support and a one- to three-year maintenance contract that guarantees next-day hardware replacement.

Working in concert with your designated network vendor, your primary step in the implementation process is to create a site survey. Because wireless networks require "line of sight" connection (meaning there cannot be any obstacles between hubs, such as trees or buildings), a careful connection plan must be created. This survey will determine what it will take to mount equipment, such as satellites or antennas, between schools. A school or surrounding building may not want an antenna on a roof, so a complete plan can determine what wireless network setup will best fit the school's logistic and aesthetic needs. This wireless network will work with your existing LAN. Your computers will be connected to the main network via access points, which are plugged into the network hub or switch. This site survey plan will also help determine your budget.

The next step is your integration plan. At this stage, you would shop for and purchase the hardware that will meet your school's specific needs. It is important to consider how much bandwidth you desire. Make sure to take all of the applications used at the school(s) into account. You should buy as much bandwidth as you can afford (100MB is recommended).

Installation and implementation are the final stages of the process. A wireless network can be installed in one day to one week, depending on the level of difficulty. Prices for wireless technology will vary depending on of the number and types of hardware chosen, the number of sites involved and the associated bandwidth requirements. The 802.11B networking specification standards, established by IEEE, are being implemented by most schools to ensure interoperability between networks.

With dropping costs and growing benefits, why not check out a wireless network for your school or district?

Mike Dillon is Chief Technology Officer with Quest, a technology consulting and management firm that provides technology solutions to corporate, government and education markets.

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