Original length, depending on characteristics of the specific polygons, We are able to compress polygons to between 9.7% and 23.6% of Have strict length restrictions, as in the case of Wireless Emergency Alert The mainĪpplication is to embed compressed polygons to emergency alert messages that
Transmission of polygons representing geographical targets. We describe several polygon compression techniques to enable efficient We close by outlining a number of open research questions. We discuss how this architecture can provide increased value to equipment and device manufacturers, application and network service providers, and end users. Based on these principles, we propose the CROSSMobile SM architecture 1 that is enabled by controlled cross-layer information exchange between radio, network, and application layers (both on-device and in-cloud), coupled with information-owner-based privacy and security controls. In this paper, we step back and re-evaluate existing wireless network architectures, identifying inherent limitations and offering a new set of architectural principles that, we contend, will lead to significantly improved overall system performance and scala-bility. Non-cellular wireless networks are used beneficially within geographically limited domains (enterprise, at home), but such networks lack the architecture to scale geographically. Four decades later, these networks maintain historical artifacts from PSTN networks, and the artifacts work against the fundamental needs of today's wireless systems. Market pressures fueled upgrades in bandwidth and functionality. Commercial cellular networks emerged from the wired public switched telephone networks (PSTN) in an evolutionary manner.