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Introduction to Wireless and Cellular Communications

Prof. David Koilpillai · IIT Madras

Start with lecture 1 At NPTEL

About

An in-depth understanding of the wireless channel and the related impairments (multipath, fading), small-scale and large-scale propagation effects ,Understanding of the design of cellular systems,Detailed discussion of Multiple Access (TDMA/CDMA/OFDM), Antenna diversity, MIMO, Wireless Channel Capacity, Computer simulations of wireless systems,Exposure to current and emerging wireless and cellular systems (LTE, 802.11)

Intended audience: B.E. / B.Tech/ M.E./ M.Tech/ Ph.D. students who have completed digital communications

Prerequisites: Analog and Digital Communications, Digital Signal Processing

Lectures

Week 1 : Overview of Cellular Evolution and Wireless Technologies

  1. Overview of Cellular Systems - Part 1 YouTube
  2. Overview of Cellular Systems - Part 2 YouTube
  3. Overview of Cellular Systems - Part 3 YouTube
  4. 5G and other Wireless Technologies YouTube

Week 2 : Wireless Propagation and Cellular Concepts

  1. Lec 5: Basic Cellular Terminology YouTube
  2. Lec 6: Introduction to Antennas and Propagation Models YouTube
  3. Lec 7: Link budget, Fading margin, Outage YouTube
  4. Lec 8: Cellular Concept YouTube
  5. Lec 9: Cellular system design and analysis YouTube

Week 3: Cellular System Design, Capacity, Handoff, and Outage

  1. Cellular Geometry & System Design YouTube
  2. Cellular System Capacity, Trunking YouTube
  3. Handoff & Mobility YouTube
  4. Handoff Part 2, Classification of Signal Variation YouTube
  5. Shadowing, Outage, Multipath YouTube

Week 4: Multipath Fading Environment

  1. Rayleigh Fading and Statistical Characterization YouTube
  2. Properties of Rayleigh Distribution YouTube
  3. BER in Fading, Narrowband vs Wideband Channels YouTube
  4. Characterization of Multipath Fading Channels YouTube
  5. Choice of Modulation YouTube

Week 5 - BER Performance in Fading Channels

  1. Coherent versus Differential Detection YouTube
  2. Review of Lec 1-19 YouTube
  3. Coherent vs Differential Detection - Part II and BER in Fading YouTube
  4. BER in Fading - Part II, Ricean Fading YouTube
  5. Ricean and Nakagami Fading, Moment Generating Function (MGF) YouTube

Week 6 - Wide Sense Stationary Uncorrelated Scattering (WSSUS) Channel Model

  1. MGF Part II, WSSUS Model YouTube
  2. WSSUS Part II, Coherence Time, Doppler Spectrum YouTube
  3. Doppler, Temporal Characteristics of Fading Channels YouTube
  4. WSSUS – Characterization of Time Dispersive Fading Channels YouTube
  5. WSSUS – Classification of Fading Channels YouTube

Week 7 - Computer simulation of Rayleigh fading, Antenna Diversity

  1. Practical Channel Models (ITU, COST), Computer generation of Rayleigh fading YouTube
  2. Rayleigh Fading simulation - Clark and Gans Method, Jakes’ Method YouTube
  3. Jakes’ Method properties YouTube
  4. Introduction to Diversity, Antenna selection diversity YouTube
  5. Statistical Characterization of Antenna Diversity, Optimal Diversity Combining YouTube

Week 8 - Fading Channels - Diversity and Capacity

  1. BER in fading, Equal Gain Combining YouTube
  2. Array Gain, Diversity Gain, Alamouti Scheme YouTube
  3. Alamouti Scheme – Part II, Channel Capacity YouTube
  4. Capacity of fading Channels, Capacity with Outage YouTube
  5. Channel State Information, Optimum Power Allocation YouTube

Week 9 - Capacity and Introduction to CDMA

  1. Review of lecture 19 to lecture 36 YouTube
  2. Optimum Power Allocation – Water filling YouTube
  3. Optimum Power Allocation – Water filling – Part II YouTube
  4. Intro to Direct Sequence Spread Spectrum Communications YouTube

Week 10 - Introduction to CDMA

  1. Properties of Spreading Sequences YouTube
  2. Properties of Spreading Sequences – Part 2 YouTube
  3. Introduction to CDMA YouTube
  4. Features of cdma2000 and WCDMA YouTube

Week 11 - CDMA Receivers

  1. Rake Receiver for multipath channels YouTube
  2. Multiuser environment YouTube
  3. CDMA system Capacity YouTube
  4. CDMA Multiuser Detectors – Part 1 YouTube
  5. CDMA Multiuser Detectors – Part 2 YouTube

Week 12

  1. Lecture 52 YouTube
  2. Lecture 53 YouTube
  3. Lecture 54 YouTube
  4. Lecture 55 YouTube

Syllabus and materials

At NPTEL, as the course publishes them.

Credits and licence

Institution
IIT Madras
Department
Electrical Engineering
Teacher
Prof. David Koilpillai
Level
Graduate
Language
English
Subjects
Engineering
Source
NPTEL
Licence
CC BY-NC-SA, as NPTEL states it. Non-commercial use only. NPTEL's terms
Attribution
NPTEL states: "Distributed under Creative Commons Attribution-ShareAlike / CC BY - NC - SA", beside a BY-NC-SA badge.
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