Information Technology Reference
In-Depth Information
TraSt: A Trac Statistic Framework
for Evaluating 3G Charging System
and Smart Phone Applications
Wenshan Fu, Tong Zhao, Kaigui Bian, and Wei Yan
School of Electronics Engineering and Computer Science
Peking University, Beijing, P.R. China, 100871
Abstract.
We designed and implemented a trac analyze framework
TraSt (Trac Statistics) based on tcpdump for Android. This framework
can get more detailed trac usage than any other existing trac monitor
frameworks or applications on smart phones, and help us to explore four
aspects of Chinese three major operators' charging system as well as four
kinds of popular smart phone applications. Our work helps 3G users and
software developers have a clearer understanding of the similarities and
differences among the operators' charging services, so as to promote the
improvement of software development and operators' services, and our
analysis with recommendations to application developers can lead to
better system design and network infrastructure support.
Keywords:
Framework, 3G, Charging, Smart phone, Application.
1 Introduction
With the rapid development of 3G technologies and smart phones, millions of
mobile applications emerge on the market. Report by the Ministry of Industry
and Information Technology [4] shows that by the end of 2012, the number of 3G
users in China is over 210 million. And the the usage trend will be accelerated
with the explosive growth of smart phones in the coming years. Which makes
trac, revenues and profits continue to grow.
However, behind the flourishing 3G and smart phone market, there are also
some issues. For the operators' charging system, because they are not open to
public, some unreasonable phenomenon is dicult to get a satisfactory expla-
nation. For example, a user only download 1KB size of file, but the charging
result will always larger than 1KB. The user also can't know the smallest units
of charging: if he only used a small amount of trac, such as 50B, will it not be
charging or charging for 50B or even 1KB? Furthermore, whether some protocol
overhead is not taking into account? Etc. For the smart phone applications the
lack of rigorous review mechanism in uno
cial app markets makes users not
This work is supported in part by 973 Program of the Chinese Ministry of Science
and Technology (No. 2009CB320504) and National Natural Science Foundation of
China (No. 61073155 and No. 61001075).
