Open Mesh

CUWiN's software runs on NetBSD, an open source operating system that can be customized as needed. Since NetBSD is nonproprietary, the network can function on non-vendor-specific hardware, minimizing costs.

Interested communities can deploy a network using off-the-shelf hardware or legacy equipment deemed obsolete -- nodes can be created using systems with processors as old as an Intel 486 or Pentium I.

"The idea is that you can take those old computers gathering dust in the garage and build a communications infrastructure out of them," Meinrath said.

The system must contain a wireless network interface card (NIC) compatible with CUWiN's software. A list of compatible NICs is offered on CUWiN's Web site, where people can also go to download the software for free and burn it to a CD. The Web site includes easy-to-follow instructions on how to set up a node.

Most of the process is automated.

"The system boots from our software, opening up the operating system, which then sends out beacons to find other nodes nearby. Once it finds them, the node assimilates into the network automatically," Meinrath explained.

Active Deployment

Several communities used CUWiN's software to set up wireless networks.

The Center for Neighborhood Technology (CNT), a 27-year-old nonprofit based in Chicago, is working on projects targeting the digital divide throughout the nation. CNT's overall goal is to reduce cost of living and improve conditions of communities and neighborhoods.

CNT's Community Wireless Networks project was created to look at how access could be made affordable to communities, said Project Manager Nicole Friedman.

The issue was highlighted by the need for Chicago-area community organizations to use the Neighborhood Early Warning System, a Web-based system that supplies the organizations with up-to-date information, including building occupation status, assessor's data and the building footprint of Chicago and surrounding areas. The purpose is to help communities combat detrimental neighborhood changes and revive areas in need of help.

Friedman said CNT recognized that not everyone had access to the tool, and without that access, community organizations and citizens were left in the dark.

Paul Smith, technology director of CNT's Community Wireless Networks, explained that CNT's original intent was to use existing Wi-Fi hardware to create rooftop-to-rooftop wireless networks. But because Wi-Fi was primarily designed for small, contained networks in locations like coffee shops, hotels and airports, Smith said, the technology wasn't really meant to supply an outdoor network.

"CUWiN solved a lot of the technical hurdles that plagued Wi-Fi technology, and the programmers overcame the limitations inherent in the wireless protocols to make them suitable for large, outdoor LANs and mesh networking environments," he said.

CNT currently uses CUWiN software for multiple projects, including creation of a large communitywide LAN in North Lawndale, an urban community four miles from downtown Chicago. Smith said a number of schools and businesses are already on board, and people in the community are donating their time to help establish the low-cost network.

A Digital Future

This is a unique time in history -- when technology, demand and public policy can all come together to connect people to the Internet for very low cost, Smith said.

"It's one of those opportunities you don't want to see slip by, or become legislated out of existence," he said, noting that getting students online after school hours is especially important. "The natural next step is high-speed access into the home so education doesn't just end at 3:00 when students go home."

Wireless networks can significantly benefit educational institutions, Meinrath added, citing schools that create inexpensive wireless networks so staff and students can communicate, and so parents can access information regarding their children's education as examples.

By creating a modern-day digital party line reminiscent of the party lines that bridged the economic divide in the telephone's early days, CUWiN's software solution and ad hoc mesh networking technology is bridging a new divide and getting people connected for low cost.