Wireless internet gateways (WINGs)

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Abstract
Today's internetwork technology has been extremely success- ful in linking huge numbers of computers and users. However, to date, this technology has been oriented to computer interconnection in relatively stable operational environments, and thus cannot adequately support many of the emerging civilian and military uses that require a more adaptive and more easily deployed technology. In particular, multihop packet radio networks are ideal for establishing "instant communication infrastructures" in disas- ter areas resulting from flood, earthquake, hurricane, or fires, supporting U.S. military doctrine for reliable, secure infrastructures for communication among all tiers down to the soldiers "on-the-move," and extending the global communication infrastructure to the wireless, mobile environment. The Defense Advanced Research Projects Agency (DARPA) is sponsoring the development of wireless internet gateways (WINGs) as part of the DARPA Global Mobile (GloMo) Information Systems program. WINGs are wireless IP routers that enable the seamless marriage of distributed, dynamic, self- organizing, multihop wireless networks with the emerging multimedia Inter- net. This paper describes the WING architecture and novel communication protocols for channel access and routing, as well as the hardware and soft- ware development environment used to prototype and demonstrate wireless mobile internetworking.

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