This subject offers a description of nowadays multimedia services and evolution. The network architectures that allow bearing those services as well as the protocols involved are described. The standards evolution is considered, starting from those ones standardized from the ITU-T (H.248, H.323), protocols included in the IP architecture (RTC, RTCP, SIP, etc.), and  in new approaches such as DASH and WebRTC. The infrastructures required to deploy multimedia services, such us IPTV, the IMS for mobile networks and multicast distribution of content are analysed. The main features of the traffic generated by the multimedia services are also detailed by focusing into quality of service and security aspects (network and data) of nowadays technologies. 

The practical content includes the design and configuration of real time multimedia systems and the monitoring and analysis of multimedia traffic.

Below, a more detailed description of the content is provided:

LECTURES

1. Introduction to Multimedia Services and Networks

1.1 Introduction

1.2 Network components and multimedia services.

1.3 Services classification.

1.4 Audio and Video Services.

1.5 Introduction to protocols for real time interactive applications.

1.6 Multimedia traffic characterization.

2. Protocols 

2.1 Sessions establishment and control

2.2 Transport of multimedia streams

2.3 Remote Interaction: RTSP

2.4 HTTP Streaming.

3. Network architectures

3.1  ITU Architecture: Family of standards H.323

3.2 VoIP architecture

3.3 IpTV architecture.

4. Multicast/broadcast services

 4.1 Introduction. IP multicast.

 4.2 Multicast protocols and addressing.

 4.3 Application Level Multicasting.

5. IP Multimedia Subsystem (IMS)

 5.1 Introduction

 5.2 Architecture: Elements, interfaces and protocol

 5.3 Functions and services

PRACTICES

  PRACTICE 1. Audio and video traffic analysis with Wireshark protocol analyzer.

1. Analysis of speech and video applications.

2. Capture and analysis of multimedia traffic with Wireshark

3. Performance evaluation.  

 PRACTICE 2. Development of multimedia applications or services by employing java/javascript/c++ and or 3D tecnhnologies.

1. Get used to Android SDK, node.js, html5, webRTC/ Analysis of 3D technologies (Java3D, WebGL, HTML5, Ajax3D, Ogre, Unity3D, OpenGL) and with communications and multimedia processing libraries (OpenCV, sockets, etc.).

2. Study of fundamentals for Multimedia applications development. Evaluation of IDEs, programming languages, emulators and/or its deployment in a mobile or pc.

3. Development of a multimedia application or service and performance evaluation of data exchange.

PRACTICE 3. Business voice service and security in Voice over IP (VoIP). Configuring a VPN for voice transmission in a company with different branch offices.

 1. Analysis of requiered elements, codecs and standars for VoIP.

 2. Cisco equipments configuration for VoIP.

 3. Security tools analysis for VoIP. Risks and possible solutions. 

 4. Connectivity tests and activations of additional utilities such as, billing, calls redirection, etc

Lecture or master classes: The methodology followed is based on introductory activities and master classes about theoretical contents or case studies resolutions. During these sessions the activities introduced have as a main goal to motivate the research and critical analysis about nowadays technologies involved in the deployment of multimedia services as well as their effect in the society life style regarding communication, such as the network neutrality, changes due to the multimedia inclusion in the social networks, etc.

Exercises/problems in small groups. Exercises/case studies resolutions in groups and seminars about relevant contents related with the practical sessions will be introduced. During these sessions the student will be encouraged to develop their skills of solving a specific problem associated with the multimedia distribution of content through the use of different available technologies. They should also have to analyse the possible problems that can be encountered due to differences in the format distribution, network operators, services providers to exchange multimedia data and control and manage the distribution in worldwide contexts.

Lab Sessions. During these sessions the active participation developing supervised practices about applications configuration and traffic measurements is promoted, but also the development of a real time multimedia application via following a PBL approach. These sessions are designed to make the student to get used to update their knowledge about new technologies as well as to be able to formulate critical analysis about the main benefits or drawbacks of their deployment compared to other technologies.

Students with special educational needs should contact the Student Attention Service (Servicio de Atención y Ayudas al Estudiante) in order to receive the appropriate academic support

At the end of the semester, the student has to choose between two methods of evaluation: CONTINUOUS EVALUATION or FINAL EXAM.

CONTINUOUS EVALUATION

This assessment method is organised according to the activities described in the previous table. The evaluation process consists of the evaluation of the tasks defined in the Teaching Guide during the Teaching period.

Marks obtained during the Teaching period (as a record of the continuous evaluation process) will be kept until the end of the academic year.

The students will pass the subject through this evaluation method by getting a mark higher or equal than 5.0 out of 10 in the overall result, but with the condition of obtaining a mark higher or equal to 4.0 in each of the evaluated parts (S2, S3, S4).

The students can renounce to the Overall Evaluation at any time, but they cannot choose it again. Thus, they will be evaluated only by the FINAL EXAM method.

FINAL EXAM EVALUATION

This kind of evaluation is based in only one written exam that evaluates all the aspects of the subject, by assessing the students' acquisition of all the competences and learning outcomes established in the subject. This exam will take place during the Examination period on a date established by the centre.

The final exam is weighted in the following way:

- Attendance and participation (S1), theoretical concepts (S2) and Exercises, problems and study cases (S3): 70%.

- Laboratory and computer practical work (S4): 30%.

Any books, notes, documentation, or equipment allowed for this Final Exam have to be approved by the lecturer.

In order to pass the subject, the student must have marks higher or equal to 5.0 out of 10 at each part of the final exam.

The students who have already fulfill the requirements of aspect S4 (Laboratory or computer practical work) through the CONTINUOUS EVALUATION, by obtaining a mark higher or equal to 5.0 out of 10 do not have to make this part in the FINAL EXAM evaluation.

Those aspects successfully completed with a mark higher or equal to 5.0 will be considered passing during that academic year.

The CONTINIOUS EVALUATION modality consists of the following activities:

Attendance and Active participation: 10%. The level of attendance will be computed considering practical (reduced groups) and theoretical/problems sessions (lectures with theory groups). The level of active participation will be evaluated via the students' participation and autonomous work in various proposed activities within lectures and lab sessions. The following competences will be evaluated with this method:  CB6, CB7, CB8, CB9, CB10, CG1, CG2, CG3, CG4, CG5, CG7, CG9, CT1, CT2, CT3, CT4, CT6. A positive evaluation assesed with this method will mean that the students have achieved  following competencies or learning results:  34, 40, 41.

Theoretical concepts: 30%. During the semester there will be some tests or activies to assess with a continuous evaluation the  theoretical questions developed during lectures. In addition,  the questions proposed as autonomous work or through ILIAS (LMS) will be included as part of this evaluation. The following competences will be evaluated with this method: CB9, CB10, CG2, CG3, CG4, CT1, CT2, CE4, CE6, CE7, CE8, CE9. A positive evaluation assesed with this method will mean that the students have achieved  the following competencies or learning results:  27, 28, 31, 33, 34, 40, 41, 43.

Exercises and case studies: 30%. During the semester there will be questions/tests or activies about the problems and practical cases studied in the lectures. In addition, the development and presentation of the material related to activities proposed through the LMS will be also considered as part of the continuous evaluation. The following competences will be evaluated with this method: CB6, CB7, CB8, CB9, CB10, CG2, CG3, CG4, CG5, CG7, CG9, CT1, CT2, CT3, CT4, CT6, CT7, CE4, CE6, CE7, CE8, CE9. A positive evaluation assesed with this method will mean that the students have achieved the following competencies or learning results:  27, 28, 31, 33, 34, 40, 41, 43.

Lab/computer practical sessions: 30%. This item takes into account the development of the design practices and the documentation requested. The following competences will be evaluated with this method: CB6, CB7, CB8, CB9, CB10, CG2, CG3, CG4, CG5, CG7, CG9, CT1, CT2, CT3, CT4, CT6, CT7, CE4, CE6, CE7, CE8, CE9. A positive evaluation assesed with this method will mean that the students have achieved the following competencies or learning results:  27, 28, 31, 33, 34, 40, 41, 43.

The grade system is ruled by RD 1125/2003 of 5th September, which established the European Credits System for the official university studies.

Teaching methodology and learning activities

Schedule

The schedule can vary mainly due to the change from multi-modal scenario to the online one.

Evaluation system

There are no changes in the evaluation format (weights of each section) or in what is specified in the detailed evaluation.

Since the evaluation of the subject is continuous, there will only be an exam in the event that the student opts for the Single Test Evaluation, which is summarized in the following tables:

Ordinary call

Extraordinary call

Resources

Given that the attendance in the large group lectures and in the classes in practice groups is 100%, no exceptional resources are foreseen for them.

 Content

The content of P3 will be change for a practice based on WebRTC videoconference deployment with security.

Teaching methodology and learning activities

Schedule

The schedule can vary mainly due to the change from multi-modal scenario to the online one.

Evaluation system

There are no changes in the evaluation format (weights of each section) or in what is specified in the detailed evaluation.

Since the evaluation of the subject is continuous, there will only be an exam in the event that the student opts for the Single Test Evaluation, which is summarized in the following tables:

Ordinary call

Extraordinary call

Resources

Since all the teaching, either in the exposition classes in large groups or in the classes in practice groups, be taught online, the following resources will need to be used:

Common telematic resources (teachers and students):

- PC equipment or similar.

- Videoconference system or virtual classroom, such as Google Meet or BigBlueButton.

- Use of interactive tools: screen sharing to use comments as a virtual whiteboard in PDF presentations.

Institution in charge of data processing: Universidad de Jaén, Campus Las Lagunillas, s/n, 23071 Jaén

Data Protection Delegate: dpo@ujaen.es

Purpose: In accordance with the Universities Law and other national and regional regulations in force, carrying out exams and assessment tests corresponding to the courses students are registered in. In order to avoid frauds while sitting the exam, the exam will be answered using a videoconference system, being able the academic staff of the University of Jaén to compare and contrast the image of the person who is answering the exam with the student's photographic files. Likewise, in order to provide the exam with evidential content for revisions or claims, in accordance with current regulation frameworks, the exam will be recorded and stored.

Legitimacy: compliance with legal obligations (Universities Law) and other national and regional regulations currently in force.

Addressees: service providers who are the owners of the platforms where the exams are carried out and with whom the University of Jaén has signed the corresponding data access contracts.

Storage periods: those established in current in force regulations. In the specific case of exam videoconference recordings, not before the examination records and transcripts are closed or the exam can still be reviewed or challenged.

Rights: you can exercise your right of access, amendment, cancellation, opposition, suppression, limitation and portability by sending a letter to the postal or electronic address indicated above. In the event that you consider that your rights have been violated, you may submit a complaint to the Andalusian Council for Transparency and Data Protection www.ctpdandalucia.es

Person in charge: Universidad de Jaén, Paraje Las Lagunillas, s/n; Tel.953 212121; www.ujaen.es

Data protection delegate (DPO): TELEFÓNICA, S.A.U. ; Email: dpo@ujaen.es

Procedure aim: To manage proper recordings of teaching sessions with the aim of facilitating learning process under a multimodal and/or online teaching

Period for record storage: Images will be kept during legal term according to regulations in force

Legitimacy: Data will be managed according to legal regulations (Organic Law 6/2001, December 21, on Universities) and given consent provided by selecting corresponding box in legal admission documents

Data recipients (transfers or assignments): Any person allowed to get access to every teaching modality

Rights: You may exercise your rights of access, rectification, cancellation, portability, limitation of processing, deletion or, where appropriate, opposition. To exercise these rights, you must submit a written request to the Information, Registration and Electronic Administration Service of the University of Jaen at the address above, or by e-mail to the address above. You must specify which of these rights you are requesting to be satisfied and, at the same time, you must attach a photocopy of your ID card or equivalent identification document. In case you act through a representative, legal or voluntary, you must also provide a document that proves this representation and identification. Likewise, if you consider that your right to personal data protection has been violated, you may file a complaint with the Andalusian Data Protection and Transparency Council www.ctpdandalucia.es