About this paper

Appears in:
Pages: 6672-6681
Publication year: 2010
ISBN: 978-84-614-2439-9
ISSN: 2340-1095

Conference name: 3rd International Conference of Education, Research and Innovation
Dates: 15-17 November, 2010
Location: Madrid, Spain

LEARNING DIGITAL MODULATIONS USING A COMMUNICATION SYSTEM OVER THE ACOUSTIC CHANNEL AND PROBLEM-BASED TEACHING

New methodologies and materials are required in order to optimize the transference of knowledge between teacher and student, looking for the improvement of the educational process. Nowadays, this process is focused on the student autonomy that is understood as the competence of learning to learn. Consequently, the development of new approaches of teaching should be oriented to reinforce the learning to learn competence.

This work describes an original experience based on these principles of innovative teaching. The experience has been carried out the last two academic years in the subject “Communication Theory” for students belonging to Telecommunication Engineering Bachelor in the University of Jaen (Spain). The main idea is to develop a communication system over the acoustic channel using the multimedia hardware of a PC. The speakers are the transmitters while a microphone is the receiver of the communication system. A program in MATLAB has been developed to be able to perform the transmission and reception over the acoustic channel. Some digital modulations are introduced during this subject, concretely, the family of modulations M-PSK, M-FSK and M-QAM. The simulation software allows the parameterization of some digital simulations in order to evaluate their performance over the acoustic channel.

In this teaching experience, new material associated to digital modulations has been generated and organized following the principles of problem-based teaching. The student revises the material and interacts with the simulator in real-time in order to assert the theoretical concepts. The material and the simulation program are available in the web-based platform ILIAS of the University of Jaen. In this way, the autonomous study is reinforced making use of the web-based resources.

In order to demonstrate the advantages of the methodology, a evaluation was performed before and after the introduction of the new material. The results show an improvement about 0,4 (in a 0 to 5 scale) in the way the students understand the techniques and their associated problems.
@InProceedings{VERACANDEAS2010LEA,
author = {Vera-Candeas, P. and Ca{\~n}adas-Quesada, F.J. and Carabias-Orti, J.J. and Ruiz-Reyes, N.},
title = {LEARNING DIGITAL MODULATIONS USING A COMMUNICATION SYSTEM OVER THE ACOUSTIC CHANNEL AND PROBLEM-BASED TEACHING},
series = {3rd International Conference of Education, Research and Innovation},
booktitle = {ICERI2010 Proceedings},
isbn = {978-84-614-2439-9},
issn = {2340-1095},
publisher = {IATED},
location = {Madrid, Spain},
month = {15-17 November, 2010},
year = {2010},
pages = {6672-6681}}
TY - CONF
AU - P. Vera-Candeas AU - F.J. Cañadas-Quesada AU - J.J. Carabias-Orti AU - N. Ruiz-Reyes
TI - LEARNING DIGITAL MODULATIONS USING A COMMUNICATION SYSTEM OVER THE ACOUSTIC CHANNEL AND PROBLEM-BASED TEACHING
SN - 978-84-614-2439-9/2340-1095
PY - 2010
Y1 - 15-17 November, 2010
CI - Madrid, Spain
JO - 3rd International Conference of Education, Research and Innovation
JA - ICERI2010 Proceedings
SP - 6672
EP - 6681
ER -
P. Vera-Candeas, F.J. Cañadas-Quesada, J.J. Carabias-Orti, N. Ruiz-Reyes (2010) LEARNING DIGITAL MODULATIONS USING A COMMUNICATION SYSTEM OVER THE ACOUSTIC CHANNEL AND PROBLEM-BASED TEACHING, ICERI2010 Proceedings, pp. 6672-6681.
User:
Pass: