08-01-2012, 07:28 PM
hi give me the abstract for 4G technology
08-01-2012, 07:28 PM
hi give me the abstract for 4G technology
09-01-2012, 09:35 AM
to get information about the topic"4g wireless technology (Download Full Report )" refer the link bellow
https://seminarproject.net/Thread-4g-wir...ull-report https://seminarproject.net/Thread-4g-wir...ort?page=3 https://seminarproject.net/Thread-4g-wir...ort?page=4
18-02-2012, 03:34 PM
to get information about the topic 4g wireless technology full report ppt and related topic refer the link bellow
https://seminarproject.net/Thread-4g-wir...ull-report https://seminarproject.net/Thread-4g-wir...logy--6802 https://seminarproject.net/Thread-4g-wir...logy--5314 https://seminarproject.net/Thread-4g-wir...ort?page=4 https://seminarproject.net/Thread-4g-wir...logy--4694 https://seminarproject.net/Thread-4g-wir...technology https://seminarproject.net/Thread-4g-wir...logy--1125 https://seminarproject.net/Thread-4g-wir...314?page=2 https://seminarproject.net/Thread-4g-wir...ort?page=2
22-02-2012, 07:25 PM
i want full seminor report on 4g technology free download
23-02-2012, 11:54 AM
to get information about the topic 4g wireless technology full report ppt and related topic refer the link bellow
https://seminarproject.net/Thread-4g-wir...ull-report https://seminarproject.net/Thread-4g-wir...logy--6802 https://seminarproject.net/Thread-4g-wir...logy--5314 https://seminarproject.net/Thread-4g-wir...logy--4694 https://seminarproject.net/Thread-4g-wir...technology https://seminarproject.net/Thread-4g-wir...ort?page=4 https://seminarproject.net/Thread-4g-wir...ms-seminar https://seminarproject.net/Thread-4g-wir...ort?page=2
03-04-2012, 10:11 AM
4g wireless technology
4G wireless technology.pptx (Size: 179.72 KB / Downloads: 43) What is 4G? Abbreviation of fourth generation wireless technology. It will provide a comprehensive IP solution where voice , data and multimedia can be given to user on an “ anywhere ,anytime” basis. It includes several types of broadband wireless communication system access including cellular telephone system. It will provide seamless mobility and internet access at a rate of 100 Mbps. Features of 4G technology Support for multimedia services like teleconferencing and wireless internet. Wider band width and higher bitrates. Entirely packet – switched network. Global mobility and service portability. Support for previous wireless technologies. High internet speed. Tight network security OFDM (orthogonal frequency division multiplexing) IT transmits large amounts of digital data over a radio wave. OFDM works by splitting the radio signal into multiple smaller sub-signals that are then transmitted simultaneously at different frequencies to the receiver . By inserting a cyclic prefix between adjacent OFDM signal inter signal interference is virtually eliminated if the max. channel delay spread is less than the time interval of cyclic prefix. In OFDM the subcarrier pulse used for transmission is rectangular. Here modulation can performed by an IDFT ,which can be generated very efficiently as an IFFT . so, receiver only needs a FFT to reverse this process
12-04-2012, 09:37 AM
to get information about the topic " 4g technology" full report ppt and related topic refer the link bellow
https://seminarproject.net/Thread-4g-tec...nar-report https://seminarproject.net/Thread-4g-tec...2#pid79682 https://seminarproject.net/Thread-4g-wir...ull-report https://seminarproject.net/Thread-4g-technology-wimax https://seminarproject.net/Thread-4g-tec...?pid=77813 https://seminarproject.net/Thread-4g-wir...0#pid79180 https://seminarproject.net/Thread-4g-tec...ort?page=4 https://seminarproject.net/Thread-4g-tec...ort?page=3 https://seminarproject.net/Thread-4g-tec...ort?page=6
22-06-2012, 04:20 PM
4g wireless technology
4g wireless technology.pptx (Size: 574.65 KB / Downloads: 36) Introduction Basically the extension of 3G with more bandwidth and services Provides fastest speed, data transfer rate upto 100 mbps – 1Gbps The technologies that fall in the 4G categories are UMTS, OFDM, SDR, TD-SCDMA, MIMO, WiMAX Will harmonise global roaming , super connectivity and transparent end user performance on every mobile Requirements for 4G Based on an all-IP switched network. Peak data rates according to the ITU requirements. Dynamic share and use of network resources to support more simultaneous users per cell. Scalable channel bandwidth 5 -20 MHz, optionally upto 40 MHz. Peak link spectral efficiency. System spectral efficiency. LTE Advanced standardized by the 3GPP 802.16m standardized by the IEEE (i.e., WiMAX). Disadvantages of 1G TDMA less efficient in handling high data rate channels as it requires large guard periods to alleviate the multipath impact. FDMA consumed more bandwidth to avoid inter carrier interference 2G Second Generation appeared in 1980. Digitized the voice signal as well as the control link. Lower cost, Better Quality and more capacity. The first commercial network based on TDMA. Radio signals that require less battery power. CODEC Introduction. 3G CDMA – Code Division Multiple Access Form of Multiplexing Does not divide up the channel by time or frequency Encodes data with a special code associated with each channel Disadvantages of 3G Suffers from poor spectral flexibility and computationally intensive time domain equalization for whiteband channels.
08-07-2012, 08:51 PM
asdasdcascxsacac
sjclkcldksjzjcndshgsdknvfdhgsjncafhsdvncvbhbn dzkvhkhvushvkxzvfbh vksdvknvybhsjvngsbhbgcddfhjhgfdghjuytrdfcgvhjkiuyutr5wasxcvbnmkloiuytrgghybnb nj,ujk,mnhyo9hukikn
22-09-2012, 05:26 PM
4G Wireless Technology
4G Wireless.ppt (Size: 1,003 KB / Downloads: 27) What is 4G? A wireless access technology and is the successor of 3G. Called "3G and Beyond". Enables seamless roaming between technologies. Plans on releasing the first commercial network in 2010. NTT DoCoMo Company is testing 4G communication at 100 Mbps while moving, and 1 Gbps while stationary. What's New in 4G? Entirely packet-switched networks. All network elements are digital. Higher bandwidths to provide multimedia services at lower cost (up to 100Mbps). Tight network security. Features of 4G Networks 4G networks are all-IP (Internet Protocol) based heterogeneous networks This will allow users to: Select any system at any time and any where Use Multiple systems at the same time (e.g. GPS and WLANs and CDMA) A wide range of applications using only one 4G integrated terminal Features of 4G Networks (cont.) Support interactive multimedia services: teleconferencing, wireless Internet, etc. Wider bandwidths, higher bit rates. Global mobility and service portability. Low cost. Scalability of mobile networks (>10 times the capacity of 3G). 4G Systems Challenges To migrate current systems to 4G with the features mentioned previously, researchers are facing a number of challenges These challenges are grouped into the following different aspects: Accessing Different Networks: Multimode Devices Overlay Network Terminal Mobility Location Management Handoff Management
06-10-2012, 10:57 AM
4G Wireless Technology
4G Wireless.docx (Size: 543.18 KB / Downloads: 33) What is 4G? When talking about 4G, the question that comes to our mind is what 4G Technology is. 4G is short for Fourth (4th) Generation Technology. 4G Technology is basically the extension in the 3G technology with more bandwidth and services offered in the 3G. But at this time nobody exactly knows the true 4G definition. The expectation for the 4G technology is basically the high quality audio/video streaming over end to end Internet Protocol (IP). 4G will provide a comprehensive IP solution where voice, data and multimedia can be given to user on an “anytime, anywhere” basis. 4G Technology offers high data rates that will generate new trends for the market and prospects for established as well as for new telecommunication businesses. 4G networks, when tied together with mobile phones with in-built higher resolution digital cameras and also High Definition capabilities will facilitate video blogs. 4G is often described as MAGIC: mobile multimedia, anytime anywhere, global mobility support, integrated wireless solution, and customized personal service. Orthogonal frequency-division multiplexing (OFDM): is a method of encoding digital data on multiple carrier frequencies. Conceptually, OFDM is a specialized FDM, the additional constraint being: all the carrier signals are orthogonal to each other meaning that cross talk between the sub-channels is eliminated and inter-carrier guard bands are not required. This greatly simplifies the design of both the transmitter and the receiver; unlike conventional FDM, a separate filter for each sub-channel is not required. It can easily adapt to severe channel conditions without complex time-domain equalization. OFDM works by splitting the radio signal into multiple smaller sub-signals that are then transmitted simultaneously at different frequencies to the receiver. A few of the advantages of using OFDM are: • Robust against narrow-band co-channel interference. • High spectral efficiency as compared to conventional modulation schemes, spread spectrum, etc. • Efficient implementation using Fast Fourier Transform (FFT). • Low sensitivity to time synchronization errors. • Tuned sub-channel receiver filters are not required (unlike conventional FDM). Internet Protocol version 6(IPv6): The Internet Protocol (IP) is the method or protocol which data is sent from one computer to another on the internet. Each computer (known as a host) on the Internet has at least one IP that uniquely identifies it from all other computers on the Internet. IPv6 is a version of the Internet Protocol (IP) intended to succeed IPv4, which is the protocol currently used to direct almost all Internet traffic It includes 128 bits, which is 4 times more than 32 bits IP address in IPv4. Software Defined Ratio(SDR): SDR is one form of open wireless architecture (OWA). Since 4G is a collection of wireless standards, the final form of a 4G device will constitute various standards. This can be efficiently realized using SDR technology, which is categorized to the area of the radio convergence. • A software defined radio is one that can be configured to any radio or frequency standard through the use of software. • Roaming can be an issue with different standards, but with a software defined radio, users can just download the interface upon entering new territory, or the software could just download automatically. Conclusion 4G has a strong history and expertise in developing applications and solutions which meet the local Indian requirements. 4G has built these applications and solutions around modular software platform providing an Identity management solution that interoperates with multiple biometric devices, biometric algorithms, and demographic search engines, to offer low cost, interoperable, secure, and scalable solutions. For mobile users it will provide an `always on` mobile broadband connection so that voice calls, media streaming and internet access will be constantly at hand. Additionally the download speeds capable over 4G networking should be far greater than is currently available on 3G or indeed any home broadband service provided by a landline, with test 4G networks in China delivering 100 Mbps download speeds. This is literally an incredible development and a huge leap in terms of download speed and will no doubt further revolutionize the way in which we have access to the internet, as well as drastically lowering the cost of voice calls which use relatively little bandwidth.
17-10-2012, 12:11 PM
01-12-2012, 05:20 AM
NICE ONE gguuddd
01-12-2012, 11:20 AM
to get information about the topic " 4g wireless technology" full report ppt and related topic refer the link bellow
https://seminarproject.net/Thread-4g-wir...ull-report https://seminarproject.net/Thread-4g-wir...logy--5314 https://seminarproject.net/Thread-4g-wir...ull-report https://seminarproject.net/Thread-4g-wir...rvey-paper https://seminarproject.net/Thread-4g-wir...logy--6802
30-01-2013, 04:18 PM
i want to download 4g tecnology in IEEE format
|
|