International Journal of Computer Applications
Mobile phones and tablets can be considered as the first in-carnation of the post-PC era. Their explosive adoption rates lead to the emergence of a variety of applications. Most attractive feature of these applications is that they are available for a variety of OS (Operating System). Many of these applications, for example VoIP clients, stay active in the background. In the background, they may not communicate large amounts of data. However, their regular bursts of activity can lead to large signaling overheads, wastage of radio resources, and draining of a phone's battery.