Syllabus academic year 2009/2010
(Created 2009-08-11.)
 INFORMATION TRANSMISSION EIT100

Higher education credits: 7,5. Grading scale: TH. Level: G1 (First level). Language of instruction: The course might be given in English. Compulsory for: C1. Course coordinator: Rolf Johannesson, rolf@eit.lth.se, Inst för elektro- och informationsteknik. Recommended prerequisits: FMA410 0197 Mathematical analysis or equivalent. Assessment: Written exam (5 h) consisting of five problems. Further information: The course might be given in English. Home page: http://www.eit.lth.se/course/eit100.

Aim
The course introduces ideas from modern telecommunication technology. Its aim is to answer some fundamental questions:

Which kinds of information need to be transferred?

How do we measure information?

How do we transfer or store information?

What is the advantage of digital communication?

Which laws govern information transmission?

Knowledge and understanding
For a passing grade the student must

• be able to identify and formulate, on his or her own, problems within the areas of information transmission and communication

• be able to classify, on his or her own, how difficult a problem is in relation to his or her level of knowledge

• be able to analyze and describe, on his or her own, systems for information transmission and digital communication having low and medium complexity

Skills and abilities
For a passing grade the student must

show ability to handle, on his or her own, methods and results that are new to the student

Judgement and approach
For a passing grade the student must

• make, on his or her own, well-founded decisions among offered elective courses

Contents

• Introduction
How do we broadcast music? (Mobile telephony, History)

• Why sinusoids?
How do we describe a communication system mathematically? (Sines and cosines, Fourier transform, Linear and time-invariant systems, Impulse response, Sinusoid in--sinusoid out, What is bandwidth?)

• What is out there that needs to be sent?
What came after smoke signals? (Various information sources, voice, video, data. Compression, Huffman coding)

• How is it sent?
Sending information from here to there and from now to then. (Modulation, carrier, Sequences of pulses, BPSK, QPSK, Various types of channels, Noise)

• What did Shannon promise?
Correcting errors and approaching Shannons limit (Entropy, Mutual information, Channel capacity, Eb/N0 > -1.6 dB, Hamming distance, Block codes, Convolution codes, Viterbi decoding)

• FUBSWRORJB?? (Cryptology)
How do we achieve secrecy and autenticity? (Fundamentals of cryptosystems, classical ciphers, stream ciphers, block ciphers, cryptomachines during World War II, two-key cryptography)

Literature
Anderson, J B and Johannesson, R: Understanding Information Transmission, IEEE Press/Wiley Interscience, 2005.