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The simulation of typical network scenarios is essential for the evaluation of design proposals for future mobile adhoc network (MANET) systems. In this paper, we demonstrate the importance of realistic correlated shadow fading modeling for this application. This is done by simulating a basic mobile network scenario and comparing the estimated outage probability values for an uncorrelated link model...
Current research environments are witnessing high enormities of presentations occurring in different sessions at academic conferences. This situation makes it difficult for researchers (especially juniors) to attend the right presentation session(s) for effective collaboration. In this paper, we propose an innovative venue recommendation algorithm to enhance smart conference participation. Our proposed...
In this paper, a novel mobile WiMAX location and positioning scheme utilizing WiMAX preamble has been proposed. The purpose of the scheme is to enhance the accuracy of location estimation in WiMAX services. Preamble detection for 10MHz and 20MHz FFT bandwidth under ITU-R channel models (Vehicular (A) and Pedestrian (B)) has been evaluated and analysed. Simulation results show that the 20MHz FFT outperformed...
Information hiding schemes using complete complementary codes (CCCs) have been developed for image data. It has been shown that a high payload and a low bit-error-rate (BER) can be achieved by such data hiding strategies because of the ideal correlation properties of CCCs. In this work, we apply a data hiding scheme based on CCCs to audio signals. Properties such as signal-to-noise ratio (SNR) and...
The use of mobile devices is continuously growing, together with their ability to store and exchange sensitive data. This has spurred the interest, from one side, in exploiting their apparent vulnerabilities, and on the other side, in protecting users from any malfeasance. In this scenario, it has become essential to develop and deploy secure access and identification protocols on mobile platforms...
With the rapid rising of the number of cellular phone users, accessing the Internet via mobile device is becoming a new norm in terms of network activities and people's daily life, resulting in an ever-increasing usage of the mobile Internet. This paper analyze Service Provider (SP) traffic characteristics Based on the massive data collected from a commercial Internet Service Provider (ISP) covering...
In a mobile environment, text-based passwords are still the most common mechanism for user authentication. Although various studies have been conducted to investigate what password composition policies are better oriented for mobile users, a limited study has been performed to understand the impact of password composition policies and environmental settings to mobile users' password typing abilities...
Language Learning has been a primary field of application for mobile learning. This approach is widely known as Mobile Assisted Language Learning (MALL). On the other hand, during the last decade a number of Open Educational Resources (OERs) initiatives have been emerged worldwide. These initiatives have also influenced the field of Technology-enhanced Language Learning (TELL) and some Learning Object...
The rapid deployment of sensing technology in smartphones and the explosion of their usage in people's daily lives provide users with the ability to collectively sense the world. This leads to a growing trend of mobile healthcare systems utilizing sensing data collected from smartphones with/without additional external sensors to analyze and understand people's physical and mental states. However,...
In this paper, a novel 3D localization and identification system based on surface acoustic wave (SAW) devices has been designed and modeled. Two mobile SAW devices have been tracked based on the time of arrival (TOA) approach. The capability of the system to track multiple sensors within the same observation area is demonstrated by configuring the SAW devices in different geometries. Using Barker...
Spotify is a peer-assisted music streaming service that has gained worldwide popularity in the past few years. Until now, little has been published about user behavior in such services. In this paper, we study the user behavior in Spotify by analyzing a massive dataset collected between 2010 and 2011. Firstly, we investigate the system dynamics including session arrival patterns, playback arrival...
Cellular systems operate under restrictive constraints of resources including radio channel capacity and network processing capability. The tremendous growth in the cellular data network usage brings operators with unprecedented signaling overloads and threatens the stability of the network. Understanding the characteristics of the subscribers who are resource inefficient has an important significance...
In this paper we present new reduced video quality measure (RVQM) based on 3D steerable wavelet transform and modified SSIM (Structural Similarity index) measure. RVQM is compared with other full and reduced reference quality measures and tested on LIVE video and LIVE mobile databases. Results show that proposed RVQM measure provides good correlation with subjective grades on both databases, while...
Mobile phones are gaining particular importance in health care services. In fact, the incredible diffusion of mobile electronic devices has opened new scenarios for the assessment of stress-related events. We presented an Android Smartphone based experience sampling method and a real life data set containing stress related events. Data consisted of 12 weeks of 9 trial participants provided with Android...
The user's loyalty is a key component to be considered by the mobile telecommunication operator into a highly competitive environment with a continuous growth of mobile internet services. For this reason, we propose a methodology to support the network performance decision to provide mobile internet services based in the users perception. The correlation between the Quality of Service parameters and...
A tablet MIMO antenna with a wave-trap for LTE/WiMAX applications is presented. To improve the isolation between the two radiating elements of MIMO antenna, added a wave-trap slot on the ground plane. The isolation is improved by approximately 20 dB at the LTE700 frequency. The design MIMO antenna satisfies a 6 dB return loss requirement and the obtained envelope correlation coefficient (ECC) is lower...
We present an electromagnetic simulation of a practical mobile terminal with a two-port MIMO antenna on left and right sides of the head. The computed far-field patterns include the effect of head and hand phantoms. We show that the far-field patterns on the two sides are strongly correlated if they are presented in the coordinate system of the phone, but they are completely uncorrelated in the coordinate...
Mobile phones have become one of the primary tools for individuals to communicate, to access data networks, and to share information. Service providers collect data about the calls placed on their network, and these calls exhibit a large degree of variability. Providers model the structure of the relationships between network subscribers as a mobile call graph. In this paper, we apply a new measure...
In this paper, a continuous improvement process was developed and implemented in our engineering programs at College of Engineering, Qassim University, Saudi Arabia. The continuous improvement plan was based on an integrated set of strategies aimed at: establishing and implementing a structured process that translates educational objectives into measurable outcomes, and specifies feedback tracks for...
With rapid development of information and communication technology, human behavior has extended to mobile internet. In this paper, we studied posting behavior of micro-blog users in mobile internet. Statistical results suggest that there exist significant negative correlation between inter-event time and social concern. This means that users' interest in posting micro-blogs is influenced by social...
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