The Power Consumption

Topics: Mobile phone, Text messaging, Volt Pages: 3 (704 words) Published: April 22, 2013
The power consumption
for sending (or receiving) a single message
in a mobile phone

Abstract:
We measure overall SMS, Whatapps and Wechat for the power consumption of a single message. These results are validated by overall power measurements of two other devices: the Battery Doctor and Battery Detective. We discuss the significance of the power drawn by the various length and time of texting messages, and identify the most promising areas to focus on for further improvements of power management. We also analyze the energy impact of dynamic voltage and frequency scaling of the device’s application processor.

Introduction:
In recent years, people have a mobile phone in their hands all the day. At the same time, device functionality is increasing rapidly. In the number of applications, texting messages occupied an important part. Hence, optimal management of power consumption of devices such as SMS, WhatsApp and WeChat is critical. In this paper we attempt to answer how much of the system’s energy is consumed by sending (or receiving) a single message of the system and under what circumstances. And we will use IPhone5 as the experimental product. Furthermore, we validate the results with computing manually and the additional mobile device: Battery Doctor, Battery Detective.

Material:
Experimental product:
IPhone5 (IOS6.1.2) Timer
Testing Applications:
Messages, WhatsApp, WeChat
Measuring Application:
Battery Doctor and Battery Detective

Formula:
1)The time of sending each message=The time of the usage of 1% power/ Number of messages. 2) Average electricity consumption of each message ( with the Wifi usage)= 1% power of Iphone 5/ Number of messages. 3) Average electricity consumption of each message ( without the Wifi usage) =(1% power of Iphone 5/ Number of messages) - (The time of sending each message x The power consumption rate of wifi function).

Methodology:
Device under test
Experimental setup
When an iPhone is not...
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