PREAMBLE OF RELIABILITY & QUALITY MANAGEMENT DIGITAL COMMUNICATION- PREAMBLE (PRESENTATION) PREAMBLE OF RELIABILITY & QUALITY MANAGEMENT SGI Property

INDEX PREAMBLE STRUCTURE HOLLISTIC FIX KEY CONCEPT KEY RESEARCH AREA KEY APPLICATION INDUSTRIAL APPLICATION RESEARCH HOW WE STUDY KEY JOBS PROJECTS ONE CAN DO TRENDS

“DIGITAL COMMUNICATION” PREMBLE STRUCTURE TEACHERS INTRODUCTION 1. NAME OF THE INSTRUCTOR 2. CABIN LOCATION 3. TELEPHONENO. 4. EMAIL-ID 5. MEETING HOURS INTRODUCTION TO “DIGITAL COMMUNICATION” WHY? WHAT? WHERE? HOW? Holistic fix Key concepts Practical example Key research area Key applications Industrial application Research Key jobs and Companies How we study? Lecture plan Reference book ,journals Projects one can do Trends

TEACHERS INTRODUCTION DIGITAL COMMUNICATION- PREAMBLE (PRESENTATION) TEACHERS INTRODUCTION 1. NAME OF THE INSTRUCTOR– SACHIN SAURABH 2. CABIN LOCATION-- 309 3. TELEPHONENO.--9897481655 4. EMAIL-ID-tec033aec@gmail.com 5. MEETING HOURS– 12:30—1:30pm SGI Property

HOLLISTIC FIX OF RELIABILITY & QUALITY MANAGEMENT PREREQUISITES (12th standard) Basic Knowledge of Probability. Usage of Probability & its applications Knowledge of Statistics Knowledge of Calculus

HOLLISTIC FIX………Continued PRE REQUISTES (7th Semester) Basic VLSI Fundamentals of Digital Electronics Fundamentals of Network Analysis

HOLLISTIC FIX OF RQM………CONTINUED ADVANCE COURSE Quality Management ( MBA ) M.Tech in RQM Radar & Navigation Optical Fiber Communication

HOLLISTIC FIX OF DC…….Continued SCOPE IN RELATED FIELDS… Mobile Communication Wireless Technologies Microprocessors Integrated Circuits Aerospace Networking

KEY CONCEPTS OF RQM RELIABILITY Reliability, in its simplest form, means that a failure may not occur in a given time interval . Reliability emphasizes on four elements: 1) Probability, 2) Intended Function, 3) Time 4) Operating Conditions

FAILURES • Fault: anything that has gone wrong • Failure: an equipment problem • All failures are faults • Examples: If a transport system stops due to – particles that are normal to the process, then it is a failure (and a fault). – a left wrench inside, then it’s a fault but not a failure.

MAINTAINABILITY Maintainability can be defined as the probability that failed equipment is restored to operable conditions in a specified time i.e. down time .

AVAILABILITY The steady state availability is defined as the proportion of time during which equipment is available for use. Availability = Uptime \ Uptime + down time

Probability Probability= Total no. of ways event can occur/Total no. of possible outcomes

Random Variables Fig. showing certain dots selected from large no. of dots Also watch-- http://nptel.iitm.ac.in/showVideo.php?v=p6lze5nPkzk

SYSTEM RELIABILITY Reliability of Systems in series Reliability of Systems in parallel Reliability of Systems in series-parallel Reliability of Non series-parallel systems

ELECTRONIC COMPONENTS RELIABILITY Electronic components can be caused to fail by fatigue, creep, wear, corrosion along with electrical & thermal stresses. Reliability of well-designed, well-manufactured electronic systems is extremely high, & there are no practical limits to the reliability that can be achieved with reasonable care & expenditure .

CIRCUIT & SYSTEM ASPECTS Distortion,Jitter,Timing,Electromagnetic interference are some of the circuit & system aspects. Also,a large proportion of the failures of modern electronic system are of intermittent nature.

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

Key Jobs & Companies PRIVATE SECTOR Texas Instruments www.ti.com Alcatel Lucent. www.alcatel-lucent.in   NSN www.nokiasiemensnetworks.com   ST microelectronics www.st.com   Reliance Communications www.relianceinfo.com   Bharti Airtel www.airtel.in

PUBLIC SECTOR JOBS 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

HOW WE STUDY......? Tutorial Plan Handouts + LAN Server Reference Sources Lecture Plan Individual Assignments LAN Server Group Assignments UPTU Paper Mapping I Google Will be shared by individual Gmail Ids

PROJECTS IN DIGITAL COMMUNICATION Kit based Projects: LED Based Water Level indicator FM Receiver Intercom 2 Way Digital Clock Wireless based Projects: Wireless Based Surveillance Wireless Video Transmitter Wireless RF Based Heart Beat Counter Tele Based Projects: Telephone call recorder Tele based Home security Optical Fiber based Data Communication

TRENDS IN DC 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

Trends Continued 1974- Data phone Digital Services 1980-Dial Modem Technology (FAX) 1984-Client Server Architectures 1990’s- VPN

Trends….. continued Breaking the Shannon Limit 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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