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This paper discusses the characteristics and key techniques of 3G mobile learning based on cloud services. Our research mainly focuses on mobile learning mode including active mode, passive mode and hybrid mode. And personalized learning method and resource integration approach are applied and analyzed. At last, we propose to employ cloud computing to mobile learning and build basic framework and...
Telecommunications restructuring and 3G license mark the coming of 3G age. As telecommunication departments aim to reorganize business and provide the balanced 3G license, the competition of three telecom operators is becoming increasingly white-hot. China Mo-bile, China Unicom and China Telecom are competing in a tripartite confrontation market structure. They are evenly matched in the new round...
This paper discusses about RTL design of time domain auto-correlation architecture for two recent standards, i.e.Worldwide Interoperability for Microwave Access Orthogonal Frequency Division Multiple Access (WiMAX OFDMA) and 3rd Generation Partnership Project Long Term Evolution (3GPP LTE). We introduce time domain auto-correlation function to recognize WiMAX preamble and LTE primary synchronization...
This paper proposes the configuration of a novel wideband patch antenna system suitable especially for indoor mobile communication applications. This configuration consists of an elevated patch antenna, which has different feed structure from classical patch antenna feed configurations that the antenna is fed by an inverted L-shape structure. The antenna structure is designed, simulated and manufactured...
This paper presents a novel mechanism which increases mobile terminal battery performance. It supports a cell reselection algorithm which decides on which cell, user equipment (UE) is camped on when in idle mode (there is no active radio connection with a mobile network). Study is based on real 3G UTRA network measurements. Authors propose a technique to reduce UE current consumption in idle mode...
Based on a survey on the technical challenges to the future radio access network beyond LTA-Advanced, which should offer very high average areal throughput to support a vast amount of data traffic and user density with energy-efficient operation, we discuss the potential techniques and propose an overall framework.
Aiming at broadband CDMA mobile communication system, we define a way which constructs the link equation of viral mobile communication network based on cross entropy. Through defining the call model of mobile users, this method constructs the link equation of viral mobile communication, introducing the conception of the cross entropy, simulates and analyzes the impact which is the handover probability...
The packer switching service of the third-generation mobile communication network (3G) has provide a broader range of services, while wireless local area network (WLAN) has a faster speed in information transmission, thus making these two complementary functionally. However, with the improvement of technology and increasing of mobile users, it has a significant impact on network communication when...
Recently, the demanding requirements and use for wireless communication are increased and continue to grow. WiBro is trying to compete with Wi-Fi in coverage and data rate, while the inexpensive Wi-Fi still very popular in both personal and business use. This paper designs and implements Fixed Mobile Convergence (FMC) terminal system supported IEEE802.11 b/g/n Wi-Fi and WiBro. Terminal system of this...
This paper presents a new GSM/UMTS jamming system which is intended to be placed in a restricted area for security purpose. A pseudo base station was constructed to attempt connecting with mobile terminals. While the terminals are trying to access, the system will get the unique identity, such as IMSI and IMEI, and further check these identities in the repository. The system will selectively block...
In this paper, we present the design and the implementation of a test-bed for the Policy and Charging Control (PCC) system proposed in 3GPP TS23.203. Specifically, we use an IP multimedia call service example to demonstrate how to implement an advanced mobile service with policy and charging control in our test-bed. We show that the PCC system can handle the application-level session information and...
Recent advances in information and communication technologies permitted the design and development of new patient-centric models for the provision of better health care services and enhancement of patient's self-management. This paper presents a prototype mobile phone application which is being designed to improve the self-management of individuals with Type 1 Diabetes Mellitus (T1DM). The developed...
GPRS or the general packet radio service is a non-voice value added technology that allows data communication over mobile phones in an Internet Protocol (IP)-based network [11]. This paper focuses on the transmission of voice over the existing data channel in GSM/GPRS networks using a Web server. Since the data channel in any network is economically viable for transmission, a mechanism to transfer...
The paper analyzes the performance of the quasi-orthogonal minimum output energy (QOMOE) multiuser detector (MuD) for a turbo coded CDMA systems in additive white Gaussian noise (AWGN) with frequency selective fading environment. The QOMOE multiuser detector minimizes the output variance with respect to the component equivalent to the quasi-orthogonal component to the desired user's signature waveform,...
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