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Digital Forensics, not only for the computers of suspect, needs to collect the various digital evidences especially in many different kinds of mobile devices and operating systems. Moreover, in case of acquiring digital evidences, recovering a deleted file is more meaningful that it can find the concealed evidence by the suspect. In this paper, the phase of deleted file recovery in Tizen operating...
Many people from all over the world have been supplied with mobile terminals, and this has increased the computing power of each individual. Based on this increased utilization of mobile terminals, there are new services that are emerging as well. Also, as User Created Contents (UCC) is becoming widely available, the new era of easily sharing contents with others has started. As the result of these...
For ubiquitous computing environments, an important assumption is that all the components in any specific environment are connected with each other. With this assumption, we can share various kinds of content across mobile terminals. This paper introduces an effective scheme to manage multimedia sharing based on specially designed profiles and a virtual community. A virtual community is defined as...
This paper presents an architectural model for wireless peer-to-peer (WP2P) file sharing system for ubiquitous mobile devices. File sharing is one of the rationales for computer networks with increasing demand for file sharing applications and technologies in small and large enterprise networks and on the Internet. With the popularity of mobile phones in day-to-day activities, P2P file sharing in...
This paper presents a low power CMOS transmitter for UHF mobile RFID applications, in a 0.18-mum CMOS technology. It uses a directional coupler in front of an antenna to reduce transmitter carrier leakage at receiver front-end and to be integrated into mobile handset with a single antenna. It adapts a direct conversion transmitter and consists of low pass filter, variable gain amplifier, up-conversion...
Some theoretical and experimental models have been considered for the prediction of the path loss in systems of mobile communications. The Bertoni-Walfisch model for the effect of building with almost uniform height and are aligned. In this paper, a statistical model that consists of an adjustment of Walfisch-Ikegami model accomplished trough linear regression is presented, considering the height...
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