IK2509 Digital kommunikationsteori 7,5 hp

- Introduction, representation of bandpass (radio) signals. Equivalent lowpass representation.- Signal space concept, representation of digital communication signals, power spectra of digitally modulated signals.- Detection and performance of digital modulated signals in AWGN channels.- Bandlimited channels, channel modeling, discrete representation of bandlimited channels.- Equalization techniques (linear and nonlinear equalizers), performance of different equalization techniques. Adaptive equalizations.- Fading multipath channels, channel modeling. Digital communication signals through fading multipath channels, link analysis and techniques to improve the performance over such channels.- Multicarrier modulation techniques, the OFDM technique, OFDM versus time domain equalization.- Spread spectrum modulation techniques, direct sequence modulation and frequency hopping modulation.

The objective of the course is to give the student an in-depth treatment of modern digital communication systems.  Upon completion of the course, the student should be able to: - Evaluate digital communication links (spectral properties, bit error rate) in a structured way and evaluate tradeoffs. - Master the theory of digital communication and its benefits as compared to analogue communications. - Perform system simulations (modulation/demodulation methods, bit error rate, and channel models) and compare to the theory covered in the course. - Describe different types of equalization methods and how they solve the problem of intersymbol-interference over communication channels with distortion. - Describe and analyse different types of spread spectrum modulation methods and the advantages they bring to modern communication systems. - Describe and analyze Orthogonal Frequency Division Multiplexing (OFDM) and its suitability for future communication systems. Its advantages and drawbacks as compared to single carrier.  

Digital Communications, J. G. ProakisUpplaga: Fourth edition Förlag: McGraw-Hill År: 2001ISBN: 0-07-118183-0   Undervisningsspråk: Engelska

När kurs inte längre ges har student möjlighet att examineras under ytterligare två läsår.

• INLA - Inlämningsuppgift, 4,5 hp, betygsskala: A, B, C, D, E, FX, F
• PROA - Hemtentamen, 3,0 hp, betygsskala: A, B, C, D, E, FX, F

Examinator beslutar, baserat på rekommendation från KTH:s handläggare av stöd till studenter med funktionsnedsättning, om eventuell anpassad examination för studenter med dokumenterad, varaktig funktionsnedsättning.

Examinator får medge annan examinationsform vid omexamination av enstaka studenter.

  INL1: Homework problems, Grade P/F   TEN1: Final exam, Grade AF To pass the course at least 50% score in the exam is needed. The course contains 10 homeworks that give bonus points and can be added to the final exam.

• Vid grupparbete har alla i gruppen ansvar för gruppens arbete.
• Vid examination ska varje student ärligt redovisa hjälp som erhållits och källor som använts.
• Vid muntlig examination ska varje student kunna redogöra för hela uppgiften och hela lösningen.