Mobil aygitlardaki i̇stemci tarafli ağ trafiğine paket geciktirme mekanizmasi uygulayarak 3G modemin enerji tüketimini azaltma

In modern mobile devices, 3G modems are one of the most energy consuming components. Therefore, utilization efficiency of 3G modems have a significant impact on battery life. Utilization of 3G modems is mostly determined by the 3G network usage patterns of mobile applications. However, most of the mobile applications are developed being unaware of energy consumption characteristics of 3G modems. They request 3G network connection for mostly small and periodic data transmissions. Each data transmission awakens the 3G modem and speeds up the battery consumption. This inefficient connection behavior continues when the device is in the background mode (i.e., when the user is not interacting with the device). In this thesis, we propose a method to reduce energy consumption of 3G modems in background mode. Our method implements a queuing mechanism to delay outgoing packet traffic for a predefined time and send them in batches. Thus, it reduces the total number of 3G modem wake-up events and hence the energy consumption. We implement our method on a Motorola smartphone and collect background network traffic traces using well-known mobile applications. Using trace driven simulations, we demonstrate that our method can reduce 3G modem related energy consumption by up to 39% for different cases.