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WeChat is a social networking application developed by Tencent and has attracted more than 600 million users in China and other countries. To better understand the traffic characteristics of WeChat and potential impact on mobile networks, we proposed an analysis methodology and set up an experiment network. Extensive experiments on typical WeChat services with different smartphone terminals are conducted...
In the past years, mobile Internet has witnessed a flourish of various social networking applications. To well understand traffic characteristics of social networking applications and potential impact on mobile networks, we set up an experiment mobile network and analyzed the dynamic traffic behavior of the popular social networking applications in East Asia by typical smartphones. It is observed...
In this study, a novel location-based service which fulfills the Pac-Man game by retrieving the users' location information with GPS equipments in a natural campus environment is proposed. We design an integrated communication architecture of the client (PDA) and the server (Web server), and transform the GPS position information into the corresponding coordinates on campus e-map to implement this...
We build a Student-Partner mobile English learning system. We go deep into the campus to do English learning by portable of the mobile. The system offer the GPS function, campus map, camera, messaging, tracking and recording. Students can post the message or add the multimedia which he explore to the device. In the mobile, user can off-line to post the message. In addition, we design two activities,...
We present a system for making community driven websites easily accessible from the latest mobile devices. Many of these new devices contain an ensemble of sensors such as cameras, GPS and inertial sensors. We demonstrate how these new sensors can be used to bring the information contained in sites like Wikipedia to users in a much more immersive manner than text or maps. We have collected a large...
IEEE 802.16e has specified sleep mode operations depending on different types of power saving class for the purpose of energy saving. To solve the inefficient problem of multiple power saving classes over the same MS, this paper proposes an enhanced method to minimize the energy consumption of the MS as a whole while keeping the QoS requirements satisfied. Performance improvement of the proposed method...
The Domain Name System (DNS) is an existing and implemented network service in Internet providing host and service reachability, which is essential to every IP connection setup. Merge of mobile networks with Internet results in large flow of frequent updates to the DNS database, which is a threat for DNS database consistency, because of strong caching it uses. Even though DNS wasn't originally designed...
The domain name system (DNS) is an existing and implemented network service in Internet providing host and service reachability, which is essential to every IP connection setup. Merge of mobile networks with Internet results in large flow of frequent updates to the DNS database, which is a threat for DNS database consistency, because of strong caching it uses. Even though DNS wasn't originally designed...
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