4G wireles Technology presentation
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The document discusses wireless communication technologies, including cellular networks and wireless local area networks. It describes the evolution from 1G to 4G systems, with 1G in the 1980s providing voice calls, 2G in the 1990s adding text messaging, and 3G in the late 1990s enabling data transmission up to 2Mbps. 4G systems support multimedia applications and provide transmission speeds from 20-100Mbps. The document compares key aspects of 3G and 4G such as speed, frequency band, bandwidth, and switching design. It concludes that 4G will converge various technologies and services to offer advantages in coverage, bandwidth, power consumption, and variety of applications.
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The internet technology is divided into many stages and one of them is 1G. The topics cover up in this : history, explanation, flaws and future version.
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5G envisions a truly wireless world without the limitations of previous generations through integrating networks and designing a multi-bandwidth data path. 5G aims to provide very high bandwidth and change how wireless devices are used by enabling things like wireless virtual reality. It will offer extraordinary data capabilities, support unlimited call volumes and data broadcasts, and distribute internet access seamlessly worldwide through technologies like CDMA and IPv6. 5G is expected to be a new wireless revolution and promote concepts like shared infrastructure between operators.
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3g
4
encompasses three optional modes of operation.”
Telecommunications Union (ITU) of a single CDMA third generation standard that
“Qualcomm and Ericsson ... jointly support approval by the International
Jun 1999 found compromise at the OHG.
“Qualcomm … is not prepared to grant licences according to the … ETSI IPR Policy.”
fair, reasonable and non-discriminatory basis in accordance with the ... ETSI IPR Policy.”
“Ericsson … is prepared to grant licences to these [W-CDMA & TD-CDMA] patents on
Dec 1998 saw a stand-off in standards.
WCDMA, WTDMA, OFDMA, Global CDMA 1 & 2.
Asia Pacific (ARIB & TTA):
WCDMA N/A, UWC-136, cdma2000, WIMS WCDMA, WP-CDMA.
North America(T1P1, TR45.3, TR45.5, TR46.1):
WCDMA, WTDMA,TDMA/CDMA, OFDMA, ODMA.
Europe (ETSI):
In
n
scrambling achieve?
scrambling achieve?
6
Secure link: a linear sequence of length 2
doesn’t
Benefits of wideband signals: multipath provides temporal diversity instead of ISI.
Spectral re-use factor of 1: all cells can use the same frequency spectrum.
does
What
What
Low cross-correlation (at any time offset).
High auto-correlation (at any time offset).
What are their important properties?
in to a low amplitude, wide bandwidth signal.
Converts a high amplitude, narrow bandwidth signal
How do they work?
Pseudo-random sequences: Gold codes, Kasami codes (M-sequences).
‘W’ of WCDMA.
W
3g
Third generation mobile networks will provide significantly higher data rates and allow for convergence of various communication services. 3G networks will transition to an all-IP infrastructure and support multiple access technologies and standards to provide connectivity anywhere in the world. This will enable always-on high-speed access to multimedia applications and the internet from mobile devices.
5 g technology
5G technology is the next generation of mobile networks that will provide faster data transmission speeds and greater capacity than previous generations. It will allow for nearly unlimited wireless communication and support a wide variety of applications. 5G networks are still being developed and tested, with full implementation expected around 2020. Key aspects of 5G include higher speeds up to 1Gbps, lower latency, increased bandwidth, and new network architectures.
Mobile communication &computing
Mobile computing allows transmission of data, voice, and video through wireless devices without a fixed connection. It involves mobile communication infrastructure, hardware like smartphones and tablets, and software like operating systems. Mobile computing has evolved through generations from early analog 1G to current digital 4G and emerging 5G. Each generation provides higher data rates and new capabilities like texting, internet access, and multimedia applications, but also requires costly new infrastructure investments. Mobile computing brings benefits like flexibility, productivity, and entertainment but also security and privacy challenges.
ppt on 4g
This document provides an overview of 4G technology, beginning with a brief history of previous mobile communication generations including 1G, 2G, and 3G. It describes some of the key limitations of 3G technology and how 4G aims to address these by providing higher data rates, seamless IP-based connectivity, and support for various broadband multimedia applications. The key technologies that enable 4G are also outlined, along with the expected benefits and applications of 4G networks. Finally, some of the main challenges in deploying 4G systems are discussed.
Bab 4 perkembangan dan kemajuan sistem komunikasi bergerak
This document discusses the development and advancement of cellular communication systems. It describes the generations of cellular networks, including 1G analog networks, 2G digital networks, and 3G packet-switched networks. It focuses on 4G networks, explaining that they will use an Open Wireless Architecture to allow terminals to seamlessly connect to different local wireless networks. 4G aims to provide high data rates, efficiency, mobility, and integration of services through technologies like OFDM, MIMO, and convergence of various wireless standards. Major challenges for 4G include terminal mobility across networks and managing handoffs and billing across multiple operators.
4G Mobile communication Technology
4G systems solve problems of 3G by providing high-quality voice, video, and high-data services anywhere via IP networks. 4G uses MIMO and OFDM for high bandwidth, supports seamless handovers, and allows reconfigurable multimode terminals for diverse wireless networks and services. 4G aims to fulfill the vision of personal computing and communication with affordable, high-data connectivity everywhere over wireless.
generations of mobile communication.3G v/s 4G
This document provides an overview of 4G technology, beginning with a brief history of previous mobile communication generations including 1G, 2G, and 3G. It describes some of the key limitations of 3G technology and how 4G aims to address these by providing higher data rates, seamless IP connectivity, and support for multimedia applications. The key technologies that enable 4G are also summarized, along with the expected benefits and applications of 4G networks. Finally, some of the main challenges in deploying 4G are outlined.
4g5
4G is the fourth generation of cellular network technology that provides faster data transfer speeds than previous standards. It uses an all-IP network architecture to support various broadband services for wireless devices. Key features of 4G include peak data rates of 100Mbps for mobile use and 1Gbps for stationary use, global roaming capability, and support for multimedia applications. Long Term Evolution (LTE) is the mainstream 4G standard that provides significantly higher speeds than 3G through advanced technologies such as OFDM and MIMO. While 4G has enabled new mobile internet capabilities, issues around coverage and power consumption remain challenges.
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4G wireles Technology presentation
- 2. Introduction to wireless communication Our ultimate goal is to communicate with any type of information with anyone, at anytime, from anywhere. This is possible with the aid of WIRELESS TECHNOLOGY User Friendliness User Personalisation USER UserSensitivity
- 3. Types of wireless Communication • Cellular Networks • Wireless local area network User Friendliness User Personalisation USER UserSensitivity
- 4. Cellular Networks Evolved from mobile telephone as voice conversation and communication tools for private and business usesUser Friendliness User Personalisation USER UserSensitivity
- 5. Wireless Local Area Network Emerged from computer network. It helps business user to expand their service areas by using LAN (faster data transport)User Friendliness User Personalisation USER UserSensitivity
- 6. Evolution from 1g to 4g system • 1g Wireless System :Developed in 1980s and completed in early 1990’s • 2g Wireless System :The 2G phase began in the 1990s and much of this technology is still in use. • 3g Wireless System :It was developed in the late 1990s until present day,Japan is the first country having introduced 3G nationally User Friendliness User Personalisation USER UserSensitivity
- 8. 3G WIRELESS SYSTEM • Services include: – Global roaming – Superior voice quality and video conference – Information for web surfing, music, news, corporate intranet, transportation service etc – Transmission speeds from 125kbps to 2Mbps User Friendliness User Personalisation USER UserSensitivity
- 9. Issues on 3G wireless system • High input fees for the 3G service licenses • Inefficient to meet needs of future high- performance • Multiple standards for 3G • Require wider bandwidth • Lack of coverage because it is still new service User Friendliness User Personalisation USER UserSensitivity
- 10. 4G wireless system 4G technologies are sometimes referred to by the acronym "MAGIC," which stands for Mobile multimedia, Anytime/any-where, Global mobility support, Integrated wireless and Customized personal service. User Friendliness User Personalisation USER UserSensitivity
- 11. Current Technology • TDMA :Time Division Multiple Access, is a technique for dividing the time domain up into sub channels for use by multiple devices. • CDMA :Code Division Multiple Access, allows every device in a cell to transmit over the entire bandwidth at all times. User Friendliness User Personalisation USER UserSensitivity
- 12. 4G Hardware • Ultra Wide Band Networks :Ultra Wideband technology, or UWB, is an advanced transmission technology that can be used in the implementation of a 4G network. • Smart Antennas :: Multiple “smart antennas” can be employed to help find, tune, and turn up signal information User Friendliness User Personalisation USER UserSensitivity
- 13. General 4G Services and 4G Applications • Localized/Personalized Information • Organizational services • Communications services and applications • Entertainment services • Mobile commerce (M-Commerce ) User Friendliness User Personalisation USER UserSensitivity
- 14. Features of 4G Wireless Systems • Support interactive multimedia • User friendliness • High speed, high capacity and low cost per bit • Higher band widths • Terminal Heterogeneity • Network Heterogeneity User Friendliness nUSER UserSensitivity
- 15. User and Industry Expectations • Wireless users can be categorized into generalized segments : – The Age segment – The Internet Usage segment – The Mobile Professional segment
- 16. Comparison between 3g and 4g Major Requirement 3g 4g Speed 384 Kbps to 2 Mbps 20 to 100 Mbps Frequency Band Dependent on country Higher frequency bands ( 2-8 GHz) Bandwidth 5-20 MHz 100 MHz (or more) Switching Design Basis All digital with packetized voice Access Technologies Circuit and Packet W-CDMA OFDM and MC-CDMA
- 17. Conclusion • 4G will be a Convergence Platform providing clear advantages in terms of Coverage, Bandwidth, Power Consumption, variety of Services, ranging from Pop-Up advertisements to Location-Based services and IP Data casting ones. User Friendliness User Personalisation USER UserSensitivity