rf-basic-3g wireless

3g wireless

Ambient networks: an architecture for communication networks beyond 3G
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In this article we present a new networking concept referred to as ambient networks, which aims to enable the cooperation of heterogeneous networks belonging to different operator or technology domains. We aim to provide a domain-structured edge-to-edge view for the

A tutorial on multiple access technologies for beyond 3G mobile networks
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In this article some fundamental technical concepts of the main multiple access schemes for wireless mobile systems are reviewed, and a path for development of appropriate multiple access technologies for next-generation mobile networks, or so-called beyond 3G (B3G), is

Delivery of broadcast services in 3G networks
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In the past, Mobile TV was often associated with broadcast transmission. However, unicast technology is sufficient in many cases, especially since mobile users prefer to access content on-demand, rather than following a fixed schedule. In this paper we will focus on 3G

RF receiver requirements for 3G W-CDMA mobile equipment
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The first standardization phase for upcoming third-generation ( 3G ) wireless communications is coming to an end. As is typical for standardization work, sufficient analog performance has been assumed and predominant emphasis has been placed on modulation and coding

Exploring the relationship between perceived usefulness, perceived ease of use, perceived enjoyment, attitude and subscribers intention towards using 3G
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This study aims to examine the relationship between perceived usefulness, perceived ease of use, perceived enjoyment, attitude and subscribers intention towards using 3G mobile services. Cross sectional data were collected through a survey and analysed by means of

3G cellular standards and patents
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At the beginning of 2004, the standards for third generation ( 3G ) cellular technology were embodied in 483 Technical Specifications published by the two Partnership Projects: 3GPP and 3GPP2. Corporate members of the Partnership Projects are encouraged to identify

A study of behavioral intention for 3G mobile Internet technology: Preliminary research on mobile learning
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Nowadays education tends to go out of the campus. The rapid growth of mobile users will push educational institutions to adopt mobile learning solutions. The IT and telecommunication industries need to understand what factors will influence the users

WISE: energy-efficient interface selection on vertical handoff between 3G networks and WLANs.
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The integration of 3G networks and WLANs as complementary has begun to attract much attention in industry as well as academia. This topic is becoming a burning issue, and one of the key questions which it raises is how to support a seamless vertical handoff. This paper

OVSF codes assignment and reassignment at the forward link of W-CDMA 3G systems.
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We examine the problem of assigning and reassigning orthogonal variable spreading factor (OVSF) codes at the forward link in 3G mobile communications systems employing WCDMA. Efficient channelization code management results in high code utilization and increased

Chinas perspectives on 3G mobile commuunications and beyond: TD-SCDMA technology
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China, as the largest developing country in the world, has been emerging as a nation with the fastest penetration rate growth in mobile communications, exceeding the United States to become the largest single mobile cellular market in terms of subscriber population. The

Joint transmission and detection integrated network (JOINT), a generic proposal for beyond 3G systems
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VEN though 3G mobile radio networks up to now have not yet come widely into operation, already today research activities directed towards the definition and design of beyond 3G systems are being started in many parts of the world. According to the observations made in

3G -WLAN interworking: security analysis and new authentication and key agreement based on EAP-AKA
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The 3rd Generation Partnership Project (3GPP) standard is developing System Architecture Evolution (SAE)/Long Term Evolution (LTE) architecture for the next generation mobile communication system. The SAE/LTE architecture provides secure service and 3G -WLAN In this paper, call setup time in SIP-based video-telephony is analyzed. We used a 3G network emulator to measure post-dialing delay, answer-signal delay and call-release delay. The results are compared to local, national, international and overseas Intranet LAN

On PHY and MAC performance of 3G -LTE in a multi-hop cellular environment
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Next generation cellular radio systems will exceed the limitations of UMTS. The convergence of data and voice traffic will be supported by a flexible OFDM-based PHY layer and an OFDMA-capable MAC layer. The long term evolution (LTE) successor of the 3G

A study on remote on-line diagnostic system for vehicles by integrating the technology of OBD, GPS, and 3G
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This paper presents a remote on-line diagnostic system for vehicles via the use of On-Board Diagnostic (OBD), GPS, and 3G techniques. The main parts of the proposed system are on- board computer, vehicle monitor server, and vehicle status browser. First, the on-board

A power control algorithm for 3G WCDMA system
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In this paper, an evolution of the power control algorithm is proposed for the third-generation WCDMA system. The algorithm is based on a modification of the transmitted power update step size. Instead of the presently-suggested fixed value, the step size is modified

3G services adoption among university students: Diffusion of innovation theory
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Abstract 3G services represents an evolution in telecommunication industry. However, 3G services has not received great adoption rate as expected despite of various benefits provided by this service. This study aims to investigate the factors affecting the intention to

Satellite digital multimedia broadcasting for 3G and beyond 3G systems
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This paper presents an overview of a satellite based broadcast layer to enhance the 3G and beyond 3G systems in the delivery of Multimedia Broadcast/Multicast Services (MBMS), as identified within the European IST integrated project MAESTRO. The foreseen content

High performance ASIC implementation of the SNOW 3G stream cipher
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SNOW 3G stream cipher is presented. SNOW 3G is a stream cipher that forms the heart of the 3GPP confidentiality algorithm UEA2 and the 3GPP integrity algorithm UIA2, offering reliable security services in Universal Mobile Telecommunication System (UMTS). A

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