'Time division' diaporamas de présentation

Circuit switching: FDM and TDM

Example:. 4 users. FDM (Frequency division multiplexing). frequency. time. TDM (Time division multiplexing). frequency. time. Circuit switching: FDM and TDM. frequency band. frame. slot. Exercise.

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Data and Computer Communications

Data and Computer Communications. Tenth Edition by William Stallings. Chapter 10. Cellular Wireless Network.

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The Evolution of Telecommunications Technology and Policy

The Evolution of Telecommunications Technology and Policy. Chapter 3. Objectives. In this chapter, you will learn to: Describe the growth of telecommunications technology since the late 19th century Identify key inventions and their current equivalents in telephony technology

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Chapter 5 Making Connections Efficient: Multiplexing and Compression

Chapter 5 Making Connections Efficient: Multiplexing and Compression. Introduction. Under the simplest conditions, a medium can carry only one signal at any moment in time

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Mobile Communication Technologies and The Transition to 3G

Mobile Communication Technologies and The Transition to 3G. Nour El Kadri University Of Ottawa. Evolution of Telecommunications. Multimedia services are gaining more importance which include a huge number of applications ranging from. Phone video phone, telefax. Mobile Communication.

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3 SIGNALLING Analogue vs. digital signalling

3 SIGNALLING Analogue vs. digital signalling. Recap advantages and disadvantages of analogue and digital signalling Calculate signal transmission rates for various types of communication. Starter: A colour photograph is taken with a 6 megapixel digital

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CIS 725

CIS 725. Media Access Layer. Medium Access Control Sublayer. MAC sublayer resides between physical and data link layer Broadcast/multiacess channels N independent stations - each station generates traffic independently - if two transmit at the same time, both frames

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Connection-Based vs. Connectionless

Connection-Based vs. Connectionless. Telephone: operator sets up connection between the caller and the receiver Once the connection is established, conversation can continue for hours

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COMMUNICATION SYSTEM EEEB453 Chapter 7 (Part II) MULTIPLEXING & DEMULTIPLEXING

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Resource A llocation in Multiuser OFDM Systems

Resource A llocation in Multiuser OFDM Systems. Presented by Wong Wang Kit Nov . 7 th , 2013. OUTLINE. Introduction to Multiuser OFDM Fix and Dynamic A llocation MAO: Adaptive Subcarrier, Bit and Power Allocation Performance Gain Conclusion. Introduction to Multi-user OFDM.

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Handover Control in CDMA Radio Networks

Handover Control in CDMA Radio Networks . Hongying Yin Feb. 11 th 2003 Helsinki University of Technology hongying.yin@nokia.com. Content. Handover Soft handover Softer handover Inter-frequency handover Intra-frequency handover Inter-system handover

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Communications

Communications. IB physics. 14.1. Describe what is meant by the modulation of a wave. Distinguish between a carrier wave and a signal wave. Describe the nature of amplitude modulation (AM) and frequency modulation (FM).

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Project: IEEE P802.15 Working Group for Wireless Personal Area Networks (WPANs)

Project: IEEE P802.15 Working Group for Wireless Personal Area Networks (WPANs) Submission Title: [A IEEE802.15.4 Legacy based Design for IEEE802.15.4k PHY] Date Submitted: [July, 2011]

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Satellite Stations, Radio-Links and WAN

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GLITS Agenda: Fiber to the Home

GLITS Agenda: Fiber to the Home. Broadband Technology Overview, Steve Belter, Indiana Dataline Corp Active Ethernet FTTH, Oliver Beers, Wintek Corporation GPON FTTH, Steve Biggerstaff, Cinergy MetroNet. Broadband Technology Overview. Steve Belter, President Indiana Dataline Corp

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Multiplexing & Digital Transmission

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Medical Instrumentation #10

Medical Instrumentation #10. Electro-magnetic Spectrum, Modulation&Demodulation. ??? : 2014. 06. 03. ?????? 2010103789 ? ? ?. 1 ) Audio Frequency. 1. Electro-magnetic Spectrum. * 20 ~ 20,000 Hz ( ??? : 20,000Hz ?? ?? ). 2) Radio Frequency. (1) Low Freq : 30kHz(10km) ~ 300kHz(1km)

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MULTIPLEXING Frequency Division Multiplexing(FDM) Time Division Multiplexing(TDM) FDM+TDM

MULTIPLEXING Frequency Division Multiplexing(FDM) Time Division Multiplexing(TDM) FDM+TDM Code Division Multiplexing(CDM). GSM Frame Structure. SECURITY Access Control PIN Authentication A3 Algorithm 3) Confidentiality and Anonymity A8 Algo -To generate Cipher Key

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