CODE 114551 ACADEMIC YEAR 2024/2025 CREDITS 5 cfu anno 1 INTERNET AND MULTIMEDIA ENGINEERING 10378 (LM-27) - GENOVA SCIENTIFIC DISCIPLINARY SECTOR ING-INF/03 LANGUAGE English TEACHING LOCATION GENOVA SEMESTER 1° Semester MODULES Questo insegnamento è un modulo di: DIGITAL COMMUNICATIONS TEACHING MATERIALS AULAWEB AIMS AND CONTENT LEARNING OUTCOMES The course is designed to provide a foundational understanding of digital communications. It begins with a review of signal theory, random phenomena, and noise, followed by an in-depth exploration of baseband digital transmissions. Throughout the course, these concepts will be presented, discussed, and compared. The primary objective is to equip students with the essential knowledge required to comprehend and design modern telecommunication systems. AIMS AND LEARNING OUTCOMES Attendance, active participation to lectures, and individual study will allow students - to know the main characteristics of electric signals and systems, their classifications in time and frequency domain. - to understand the random phenomena, starting with a review of probability theory, including stochastic processes. - to appreciate the theoretical and actual advantages deriving from the use of digital systems - to understand the main elements of a digital communication system; - to know the main baseband transmission systems and to compare the principal parameters affecting their performance; TEACHING METHODS Traditional lectures (50 hours) in attendance. Further information will be available on the AulaWeb page devoted to the course. SYLLABUS/CONTENT - General concepts: analog and digital messages. - Electrical signal properties: voltage, current, power, available power. - Linear time invariant systems: pulse response, convolution, transfer function. - Probability: definitions, conditioned probability, Bayes theorem, Bernoulli trial. - Random variables: definition and properties (mean, variance), probability distribution and density functions. - Random processes: definition and properties, mean, self-correlation, white noise, power spectrum, Wiener Khinchin theorem, thermal noise - Scheme of a digital communication system. - Digital transmission over baseband channels: PAM. Intersymbol interference: Nyquist criterion. PAM power spectrum. Main line codes and their spectra. - PAM optimum receivers. - Bit and frame synchronization: basic techniques. RECOMMENDED READING/BIBLIOGRAPHY A. B. Carlson, P. B. Crilly, J. C. Rutledge, “Communication Systems”, 4th edition, Mac Graw Hill, 2002 B. Sklar “Digital Communications: Fundamentals and Applications”, Prentice Hall 2001 Handouts by the teacher. People who cannot attend the lectures will fruitfully use the handouts and the text books. TEACHERS AND EXAM BOARD SANDRO ZAPPATORE Ricevimento: Booked via e-mail. ALESSANDRO ISCRA LESSONS Class schedule The timetable for this course is available here: Portale EasyAcademy EXAMS EXAM DESCRIPTION Written + oral ASSESSMENT METHODS The written exam is devoted to assess whether the students have actually learnt the use random variables, the spectra estimation, the use of constellation, and the evaluation of link budgets. The oral exam is aimed at evaluting the synthsis, reasoning, and critical capacities of studens on the topics covered by the lectures. FURTHER INFORMATION Students with disabilities or learning disorders are allowed to use specific modalities and supports that will be determined on a case-by-case basis in agreement with the Delegate of the Engineering courses in the Committee for the Inclusion of Students with Disabilities. Students are invited to contact the teacher of this course and copy the Delegate (https://unige.it/commissioni/comitatoperlinclusionedeglistudenticondisabilita.html).
