Checking date: 31/05/2022

Course: 2022/2023

Communication channels and systems
(13851)
Study: Bachelor in Mobile and Space Communications Engineering (217)

Coordinating teacher: BOUSOÑO CALZON, CARLOS

Department assigned to the subject: Signal and Communications Theory Department

Type: Compulsory
ECTS Credits: 6.0 ECTS

Course:
Semester:

Requirements (Subjects that are assumed to be known)
Linear Systems, Communication Theory, Electromagnetic Fields
Objectives
The objectives of the course are 1) To address several key issues such as noise, bandwidth limitation, interference; and to investigate their effects on the performance of communication systems, through error probability analysis. 2) To analyze the different types of transmission media and their impairments. 3) To explore fundamental limits of communication systems, such as channel capacity. 4) To plan and analyze simple communication systems in terms of coverage and capacity. Related to the following: ) Specific objectives 1.- cognitive - Transmission concepts - Channel characterization and modelling. - Quality measurement in communication channels - Limits in Performance of physical channels. - Design and planning of communication systmes 2.- Instrumental - Programming with channel simulation software
Skills and learning outcomes
Description of contents: programme
UNIT 1. Link Budget: - Power and Attenuation Logarithmic Units: dB, dBW, dBm. - Noise and other impairments. - Probability of error: an introduction to communication quality. UNIT 2. Propagation models - Large scale and Log-normal models - Small-scale radio propagation models: multipath. UNIT 3. Signal models - Multipath models - Power profile - Coherence bandwidth - Doppler Effect. - Frequency shift - Coherence Time - Channel Classification - Statistical behavior of fading - Rayleigh and Rice models - Signal-to-Noise ratio: exponential UNIT 4. Discrete Channel Models. - Memoryless models: Binary Symmetric Channel (BSC) - Channels with memory. - Markov models - Example of parameter estimation in the Gilbert's Model. - Computation of the Bit Error Probability - Matrix Probabilities - Error patterns - Applications to system design.
Learning activities and methodology
The course consists of the following elements: lectures, exercises, and computer exercises. LECTURES (2,5 ECTS) The ON LINE lectures provide the students with explanation of the core material in the course. EXERCISES (2.5 ECTS) In these sessions at the classroom, students will discuss problems which merge the different concepts together. LABORATORIES (1 ECTS) Some selected concepts will be discussed using the computer. Students may form small working groups.
Assessment System
• % end-of-term-examination 60
• % of continuous assessment (assigments, laboratory, practicals...) 40
Calendar of Continuous assessment
Basic Bibliography
• Bernard Sklar. Digital Communications: Fundamentals and Applications. Prentice Hall.
• John C. Bellamy. Digital Telephony. Wiley-Interscience; 3 edition (2000).