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INDEXINDEX
• PREAMBLE STRUCTURE• HOLLISTIC FIX• KEY CONCEPT• KEY RESEARCH AREA• KEY APPLICATION• INDUSTRIAL APPLICATION• RESEARCH• HOW WE STUDY• KEY JOBS• PROJECTS ONE CAN DO• TRENDS
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1. NAME OF THE INSTRUCTOR – Deepti Gupta
2. CABIN LOCATION -
3. TELEPHONENO. -
4. EMAIL-ID –
5. MEETING HOURS–
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HOLLISTIC FIX OF DIGITAL HOLLISTIC FIX OF DIGITAL COMMUNICATIONCOMMUNICATION
PREREQUISITES Basic Knowledge of Logarithms (Before 12th
standard)
(12th standard)
• Basic Knowledge of Probability.
• Usage of Probability & its applications
• Knowledge of Waveforms
HOLLISTIC FIX………CONTINUEDHOLLISTIC FIX………CONTINUED
PRE REQUISTES(5th Semester)
Basic Principles of Communication
Conversion of Analog to Digital through
• Sampling• Quantization• Encoding
Different Modulation Techniques• Amplitude Modulation• Frequency Modulation• Phase Modulation 6
HOLLISTIC FIX OF DC………CONTINUEDHOLLISTIC FIX OF DC………CONTINUED
ADVANCE COURSE (6th-7th SEM)
• Digital Signal Processing• Satellite Communication• Radar & Navigation• Optical Fiber Communication
(8th SEM)
Data & Communication Networks
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SCOPE IN RELATED FIELDS…
• Mobile Communication• Wireless Technologies• Microprocessors • Integrated Circuits• Aerospace• Networking
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Fig. showing certain dots selected from large no. of dots
Also watch-- http://nptel.iitm.ac.in/showVideo.php?
v=p6lze5nPkzk
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BASIC SAMPLING EXAMPLE FOR A POPULATION CENSUSAlso watch-- http://nptel.iitm.ac.in/showVideo.php?v=WUCMavXbJo4
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Next stage to obtain a Digital signal after Sampling is quantizationAlso watch-- http://nptel.iitm.ac.in/showVideo.php?v=oFEOryECzug 14
• Main cause for degradation of pulse is noise• Regenerative repeaters are used to get the pulse in its original form
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Modulation is a technique where the properties of a carrier wave changes in accordance with the digital data.
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Coding is done to remove the interference
Once the coding is done, data becomes error free & can be detected uniquely
The interference can cause the distortion of data.
CHARLIE TO ALPHA!!!!!! CHARLIE TO ALPHA!!!!!!!
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KEY RESEARCH AREA OF DIGITAL COMMUNICATION
Research areas in cluster of DC:
• Fast Multiple Access more than the speed of light.
• To reduce the complexity & cost of Receiver & Transmitter used in DC components.
• To reduce the noise to a zero level
• Efficient long range communications
• To increase the Channel Capacity
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PRIVATE SECTOR Texas Instruments www.ti.com Alcatel Lucent.www.alcatel-lucent.in NSNwww.nokiasiemensnetworks.com ST microelectronicswww.st.com Reliance Communications www.relianceinfo.com Bharti Airtelwww.airtel.in
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Electronics Corporation of India Limited. www.ecil.co.in Bharat Electronics Limited.www.bel-india.com Hindustan Aeronautics Limited.www.hal-india.com Defense Research & Development Organization.www.drdo.org Bharat Sanchar Nigam Limited.www.bsnl.co.in
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Tutorial Plan Handouts + LAN Server
Reference Sources Handouts + LAN Server
Lecture Plan Handouts + LAN Server
Individual Assignments LAN Server
Group Assignments Handouts + LAN Server
UPTU Paper Mapping LAN Server
I Google Will be shared by individual Gmail Ids
Kit based Projects:• LED Based Water Level indicator• FM Receiver• Intercom 2 Way• Digital ClockWireless based Projects:• Wireless Based Surveillance• Wireless Video Transmitter• Wireless RF Based Heart Beat CounterTele Based Projects:• Telephone call recorder• Tele based Home security• Optical Fiber based Data Communication
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March 10, 1876- Telephone by Graham Bell
Early 1900’s- Teletypewriter
1960- Character coding in the form of 8bit character
1967- Voice Digitization technique- PCM
1969-Caterphone
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1974- Data phone Digital Services
1980-Dial Modem Technology (FAX)
1984-Client Server Architectures
1990’s- VPN
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Till date- Broadband ISDN, Cell based transmission, Satellite & GPS, VOIP, Video Confrencing
Future Trends- High Speed communication across the galaxies
Breaking the Shannon Limit
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