Fourth generation wireless system is a packet switched wireless system with
wide area coverage and high throughput. It is designed to be cost effective and
to provide high spectral efficiency . The 4g wireless uses Orthogonal Frequency
Division Multiplexing (OFDM), Ultra Wide Radio Band (UWB),and Millimeter wireless.
Data rate of 20mbps is employed. Mobile speed will be up to 200km/hr.The high
performance is achieved by the use of long term channel prediction, in both time
and frequency, scheduling among users and smart antennas combined with adaptive
modulation and power control. Frequency band is 2-8 GHz. it gives the ability
for world wide roaming to access cell anywhere.
4g wireless systems abstract
mobile communications systems are uniquely identified by "generation designations.
Introduced in the early 1980s, first generation (1G) systems were marked by analog
frequency modulation and used primarily for voice communications. Second generation
(2G) wireless communications systems, which made their appearance in the late
1980s, were also used mainly for voice transmission and reception The wireless
system in widespread use today goes by the name of 2.5G-an "in between "
service that serves as a stepping stone to 3G. Whereby 2G communications is generally
associated with Global System for Mobile (GSM) service, 2.5G is usually identified
as being "fueled " by General Packet Radio Services (GPRS) along with
GSM. In 3G systems, making their appearance in late 2002 and in 2003, are designed
for voice and paging services, as well as interactive media use such as teleconferencing,
Internet access, and other services. The problem with 3G wireless systems is bandwidth-these
systems provide only WAN coverage ranging from 144 kbps (for vehicle mobility
applications) to 2 Mbps (for indoor static applications). Segue to 4G, the "next
dimension " of wireless communication. The 4g wireless uses Orthogonal Frequency
Division Multiplexing (OFDM), Ultra Wide Radio Band (UWB), and Millimeter wireless
and smart antenna. Data rate of 20mbps is employed. Mobile speed will be up to
200km/hr.Frequency band is 2 ]8 GHz. it gives the ability for world wide
roaming to access cell anywhere.
Support for interactive multimedia, voice, streaming video, Internet, and other
o IP based mobile system
o High speed, high capacity,
and low cost per bit
o Global access, service portability, and scalable mobile
o Seamless switching, and a variety of Quality of Service driven
o Better scheduling and call admission control techniques
hoc and multi hop networks (the strict delay requirements of voice make multi
hop network service a difficult problem)
o Better spectral efficiency
Seamless network of multiple protocols and air interfaces (since 4G will be all ]IP, look for 4G systems to be compatible with all common network technologies,
including802.11, WCDMA, Blue tooth, and Hyper LAN).
o An infrastructure to
handle pre existing 3G systems along with other wireless technologies, some of
which are currently under development.
See Full Report
To Download Full Report Click Here
You may also like this : Bio Battery, Paper Battery , Smart Antenna, Mobile Train Radio Communication, Hydrogen Super Highway , Humanoids Robotics, Optical Ethernet , Transparent Electronics , Thermography , Surface Plasmon Resonance , Microwave Superconductivity , Memristor , Earthing transformers For Power systems, Direct Current Machines , DD Using Bio-robotics , Wireless LAN Security , Smart Note Taker , Clos Architecture in OPS, 4G Wireless Systems , Wearable Bio-Sensors , Poly Fuse , Non Visible Imaging , Nuclear Batteries-Daintiest Dynamos , MILSTD 1553B , Micro Electronic Pill , MOBILE IPv6 , Chip Morphing , Challenges in the Migration to 4G, CAN , BIT for Intelligent system design, A 64 Point Fourier Transform Chip , Anthropomorphic Robot hand: Gifu Hand II , ANN for misuse detection, Adaptive Optics in Ground Based Telescopes , Aluminum Electrolytic Capacitors , IBOC Technology , Honeypots , Immersion Lithography , Grating Light Valve Display Technology , Fractal Antennas , HART Communication ,E-Textiles, Electro Dynamic Tether , FPGA in Space , DV Libraries and the Internet , Co-operative cache based data access in ad hoc networks , Mesh Topology , Mesh Radio, Metamorphic Robots, Low Energy Efficient Wireless Communication Network Design,Electronics Seminar Reports, PPT and PDF.
Labels : ECE Seminar Topics List, ECE Seminar Topics 2009|2010|2011|2012, ECE Paper Presentations, B Tech ECE Seminar Topics, ECE Seminar Topics Free Download, Electronics Seminar Topics List, List Seminar Topics Electronics, Seminar Topics for Electronics and Communication 2009|2010|2011|2012, IEEE Seminar Topics Electronics Communication 2009|2010|2011|2012, Seminar Topics Electronics Communication Engineering, Latest Seminar Topics Electronics Communication 2009|2010|2011|2012, IEEE, Electronics for You, Electronics Seminar Topics PDF, Electronics Seminar Topics 2009|2010|2011|2012, Electronics Seminar Topics Technical Seminars