Geographic Addressing for Field Networks
Robert J. Hall · 2017
This chapter provides an overview of an approach to field networking, the scalable geographic addressing framework (SGAF), which meets the challenges better than traditional networking approaches. It is based on the observation that geographic addressing (GA) is both a natural way to think about the communications underlying many field applications as well as an addressing paradigm that admits efficient and robust implementations under the stringent conditions experienced in the field. The SGAF is demonstrated in a prototype known as the AT&T Labs Geocast System (ALGS). The chapter provides a brief overview of the scalable ad hoc geocast protocol (SAGP), a protocol for GA in peer-to-peer wireless networks. It describes a georouting approach to GA appropriate for tiers using wide area networking like the Internet. The chapter also describes how these are put together using bridging rules into a multi-tier large-scale GA service. The chapter describes the ALGS prototype and some representative implemented and trialed applications, respectively.