Push Notification Mechanisms for Pervasive Smartphone Applications

Robust Earthquake Early Warning at a Fraction of the Cost: ASTUTI Costa Rica

“…Because this is from a small number of phones that were relatively close together, it is not clear how representative this metric is of latencies that would occur when sending many thousands of alerts across a wider geographic region. Moreover, for widespread roll-out, push notification (Warren et al, 2014) is a more appropriate and lower-latency protocol than text messaging and development of this capability is occurring in the next phase of our work. For comparison we note, that in a recent test of ShakeAlert in San Diego county using the U.S. federal Wireless Emergency Alert (WEA) system (Minson et al, 2020), median δt alert was ∼13 s. To the best of our knowledge no other smartphone EEW projects have reported alerting latency data (Finazzi, 2016(Finazzi, , 2020Finazzi & Fassò, 2017;Kong et al, 2016Kong et al, , 2018Kong et al, , 2020Kong, Patel, et al, 2019].…”

A Proposed System for Push Messaging on Android

“…Depending on handling method defined in the installed application, the pushed data may or may not be displayed directly on the screen as notifications [14]. One popular push services provided include the Android Cloud to Device Messaging Framework (C2DM) for Android, the Black-Berry Push Essentials and Push Plus for BlackBerry OS, the Apple Push Notification Service for iOS, and the Microsoft Push Notification Service for Windows Phone [15]. In the first two services on Android and Blackberry, pushed data generally are used for data distribution.…”

“…GCM server is used to develop Android applications where two major processes are involved in the development of client Android applications; these processes include [15]:…”

“…The device requests a PNS in the background by transmitting the package containing the name of the application and the developer's project ID to the Google push server. If the request is allowed, the server provides a registration ID to the device for identifying the application on the device [15]. iii.…”

“…This means that the Google push server can conditionally maintain the message depending on the expiration time in time the device cannot receive the messages temporarily. It is great concern that the GCM server does not restrict the number of push messages that a developer can transmit in same time it does not need to perform frequent polling to receive the messages and consume little network traffic, Consequently, mobile application requires a small amount of the battery power for its function [15], [23] that's why this technique promises of high efficiency and good performance for our proposed system. Using our proposed system, developer can push notification to segment of parents, while every device own key ID registered in third party server, The system broadcasts the message using parents database via Intent broadcast, the Oncreate method is called to initialize third party keys as in the following algorithm:…”