Event: Academic Organisations » OpenCourseWare Consortium » MIT OpenCourseWare » MIT 6.450 Principles of Digital Communications I - Fall 2006 MIT 6.450 Principles of Digital Communications I - Fall 2006

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MIT 6.450 Principles of Digital Communications I - Fall 2006

author: Robert G. Gallager, Center for Future Civic Media, Massachusetts Institute of Technology, MIT
recorded by: Massachusetts Institute of Technology, MIT
released under terms of: Creative Commons Attribution Non-Commercial Share Alike (CC-BY-NC-SA)

The course serves as an introduction to the theory and practice behind many of today's communications systems. 6.450 forms the first of a two-course sequence on digital communication. The second class, 6.451, is offered in the spring.

Topics covered include: digital communications at the block diagram level, data compression, Lempel-Ziv algorithm, scalar and vector quantization, sampling and aliasing, the Nyquist criterion, PAM and QAM modulation, signal constellations, finite-energy waveform spaces, detection, and modeling and system design for wireless communication.

Recommended Citation

For any use or distribution of these materials, please cite as follows:

Robert Gallager and Lizhong Zheng, course materials for 6.450 Principles of Digital Communications I, Fall 2006.

Course Homepage: 6.450 Principles of Digital Communications I Fall 2006

Course features at MIT OpenCourseWare page:

Complete MIT OCW video collection at MIT OpenCourseWare - VideoLectures.NET
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votesvotesvotesvotesvotes [syn]  20197 views, 1:19:36  
flagLecture 1: Introduction: A layered view of digital communicationLecture 1: Introduction: A layered view of digital communication
Robert G. Gallager Robert G. Gallager
comments1 comment 
votesvotesvotesvotesvotes [syn]  9984 views, 1:19:15  
flagLecture 2: Discrete source encodingLecture 2: Discrete source encoding
Robert G. Gallager Robert G. Gallager
[syn]  9515 views, 1:09:26  
flagLecture 3: Memory-less sources, prefix free codes, and entropyLecture 3: Memory-less sources, prefix free codes, and entropy
Robert G. Gallager Robert G. Gallager
votesvotesvotesvotesvotes [syn]  9887 views, 1:21:20  
flagLecture 4: Entropy and asymptotic equipartition propertyLecture 4: Entropy and asymptotic equipartition property
Robert G. Gallager Robert G. Gallager
votesvotesvotesvotesvotes [syn]  6247 views, 1:18:59  
flagLecture 5: Markov sources and Lempel-Ziv universal codesLecture 5: Markov sources and Lempel-Ziv universal codes
Robert G. Gallager Robert G. Gallager
votesvotesvotesvotesvotes [syn]  5772 views, 1:19:31  
flagLecture 6: QuantizationLecture 6: Quantization
Robert G. Gallager Robert G. Gallager
comments1 comment 
votesvotesvotesvotesvotes [syn]  5128 views, 1:20:02  
flagLecture 7: High rate quantizers and waveform encodingLecture 7: High rate quantizers and waveform encoding
Robert G. Gallager Robert G. Gallager
votesvotesvotesvotesvotes [syn]  9384 views, 1:19:29  
flagLecture 8: Measure, fourier series, and fourier transformsLecture 8: Measure, fourier series, and fourier transforms
Robert G. Gallager Robert G. Gallager
votesvotesvotesvotesvotes [syn]  5563 views, 1:16:45  
flagLecture 9: Discrete-time fourier transforms and sampling theoremLecture 9: Discrete-time fourier transforms and sampling theorem
Robert G. Gallager Robert G. Gallager
votesvotesvotesvotesvotes [syn]  4162 views, 1:18:28  
flagLecture 10: Degrees of freedom, orthonormal expansions, and aliasingLecture 10: Degrees of freedom, orthonormal expansions, and aliasing
Robert G. Gallager Robert G. Gallager
[syn]  4567 views, 1:22:37  
flagLecture 11: Signal space, projection theorem, and modulationLecture 11: Signal space, projection theorem, and modulation
Robert G. Gallager Robert G. Gallager
[syn]  8612 views, 1:20:54  
flagLecture 12: Nyquist theory, pulse amplitude modulation (PAM), quadrature amplitude modulation (QAM), and frequency translationLecture 12: Nyquist theory, pulse amplitude modulation (PAM), quadrature amplitude ...
Robert G. Gallager Robert G. Gallager
[syn]  6440 views, 1:15:03  
flagLecture 13: Random processesLecture 13: Random processes
Robert G. Gallager Robert G. Gallager
comments2 comments 
[syn]  4824 views, 1:20:35  
flagLecture 14: Jointly Gaussian random vectors and processes and white Gaussian noise (WGN)Lecture 14: Jointly Gaussian random vectors and processes and white ...
Robert G. Gallager Robert G. Gallager
votesvotesvotesvotesvotes [syn]  3830 views, 1:18:05  
flagLecture 15: Linear functionals and filtering of random processesLecture 15: Linear functionals and filtering of random processes
Robert G. Gallager Robert G. Gallager
votesvotesvotesvotesvotes [syn]  3699 views, 1:12:00  
flagLecture 16: Review; introduction to detectionLecture 16: Review; introduction to detection
Robert G. Gallager Robert G. Gallager
votesvotesvotesvotesvotes [syn]  3255 views, 1:08:00  
flagLecture 17: Detection for random vectors and processesLecture 17: Detection for random vectors and processes
Robert G. Gallager Robert G. Gallager
[syn]  4437 views, 1:12:39  
flagLecture 18: Theorem of irrelevance, M-ary detection, and codingLecture 18: Theorem of irrelevance, M-ary detection, and coding
Robert G. Gallager Robert G. Gallager
[syn]  3856 views, 1:16:33  
flagLecture 19: Baseband detection and complex Gaussian processesLecture 19: Baseband detection and complex Gaussian processes
Robert G. Gallager Robert G. Gallager
votesvotesvotesvotesvotes [syn]  10283 views, 1:16:29  
flagLecture 20: Introduction of wireless communicationLecture 20: Introduction of wireless communication
Robert G. Gallager Robert G. Gallager
[syn]  8530 views, 1:16:40  
flagLecture 21: Doppler spread, time spread, coherence time, and coherence frequencyLecture 21: Doppler spread, time spread, coherence time, and coherence ...
Robert G. Gallager Robert G. Gallager
[syn]  3859 views, 1:10:55  
flagLecture 22: Discrete-time baseband models for wireless channelsLecture 22: Discrete-time baseband models for wireless channels
Robert G. Gallager Robert G. Gallager
votesvotesvotesvotesvotes [syn]  4288 views, 1:04:14  
flagLecture 23: Detection for flat rayleigh fading and incoherent channels, and rake receiversLecture 23: Detection for flat rayleigh fading and incoherent channels, ...
Robert G. Gallager Robert G. Gallager
votesvotesvotesvotesvotes [syn]  4864 views, 1:09:30  
flagLecture 24: Case study — code division multiple access (CDMA)Lecture 24: Case study — code division multiple access (CDMA)
Robert G. Gallager Robert G. Gallager

Reviews and comments:

Comment1 vinay mavi, April 13, 2011 at 9:51 a.m.:

This site is so useful for students but i have a suggestion please upload some programming video like Java,Python etc.

Comment2 Krishna patel, January 31, 2012 at 4:46 p.m.:

Brillient for Indian students...........
my study is going fastly.
thank you mit

Comment3 mona, June 23, 2012 at 5:19 p.m.:

excellent for any interested graduate communication student
thank you very much MIT

Comment4 Anonymous, February 1, 2013 at 9:33 p.m.:

Gosh, you people!

Comment5 ali, February 21, 2014 at 8:31 p.m.:

it very good,thanks

Comment6 mostafa, January 18, 2015 at 9:21 a.m.:

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Comment7 heena verma, July 31, 2015 at 11:35 a.m.:

can u plzz send me link of analog communication.

Comment8 Michael Kanayochukwu, April 10, 2016 at 1:53 a.m.:

A million thanks to MIT. You are doing a noble work here. Keep it up especially in Telecommunications Engineering.

Comment9 Mansur Amin, February 9, 2021 at 8:11 p.m.:

Very helpful videos and materials

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