Thursday, June 18, 2009

BUSCO PROFESOR DE ELECTRONICA DE ALTA FRECUENCIA. ¿ME PODEIS AYUDAR?

Necesito contactar con un ingeniero en electrónica de alta frecuencia (Active RF, Antenas activas, RFIC, MMIC, o similar), dispuesto a encargase de impartir una asignatura de último curso de Teleco en la Universidad Europea de Madrid.

Tiene que ser alguien dispuesto a enfocarlo con metodologías formativas basadas en el aprendizaje por proyectos, o método del caso. Es decir, poco rollo en el estrado, y mucho trabajo en grupo. Por eso tiene que ser alguien que esté trabajando en estos temas como ejercicio profesional habitual.

El horario es viernes tarde y algún sábado por la mañana, por lo que sería compatible con horario profesional.

Los viernes pagamos 210 euros (sesiones de 3 horas), y los sábados 360 euros (sesiones de 4 horas).

Bueno... si me podéis echar una mano... Es para empezar en Septiembre.

Thursday, August 14, 2008

The Changing European Learning Environment



The New Bologna Environment pushes us to engaging new ways of teaching. Promoting the participation and commitment of students in their learning process is a key factor for the XXI Century University. Active methodologies should be used to accomplish that. In other words, the key for active learning is to proposing activities that make the students work on their own, looking for the achievement of high objectives.

A key factor for the successful application of active methodologies is that students receive as much feedback from the teacher as possible; that way students can modify and improve their learning process continuously. As a result, these methodologies are highly time–consuming for lecturers and face an important resistance to change within Academia.

But technology can help us organize the work and the communication with students. Tools that make the mechanical work associated with the management of students, their papers and their continuous evaluation, improve the efficiency of the time spent by lecturers.

Some e-learning platforms are very useful to the management of the communication with students. For example, lecturers can see statistics of the participation of a particular student in a forum, or listing the mails sent from a student and the responses given to him. But there are other tasks that are not implemented in any software yet.

Developing tools that simplify the hard mechanical work associated to the application of a certain methodology, is key to success in the Bologna process if class groups are not being reduced.

In addition, next generation e-books are being defined at present. As methodology, contents (e-books, technical notes…) have to be flexible enough in order to get our goal. Each student has his own personal resources so the contents have to be that flexible in the sequencing. Two different students may sequence contents differently.

Lecturers will have the possibility to interact within the material to guide each student to a specific direction. In this way, learning is an active process that may change as a function of the different actors that can play a role on it. Contents within text books cannot be static but count on different types of contents, (technical notes, workgroups or deliverables). And the learning strategy applied in each case should be oriented to develop in the students certain specific skills. These specific skills will vary depending on the degree the students are in.

Tuesday, May 06, 2008

New Evaluation Strategies: Classmate Peer Evaluation



The new Bologna Environment pushes us to engaging in new ways of teaching. Promoting the participation and commitment of students in their learning process is a key factor for the XXI Century University. Active methodologies should be used to accomplish that.

Here in this blog we analyze different active learning methodologies that can be applied to engineering education, and also how technology may help apply such methodologies easily.

The key for active learning is to propose activities that make students work on their own, looking for the accomplishment of ambitious objectives.

A key factor for the successful application of active methodologies is that students receive as much feedback from the professor as possible; that way students can modify and improve their learning process continuously.

To provide the student with this feedback several actions may be taken, which can be classified in two main groups:

1. Actions based on group discussions. Discussions generated about a subject, project or problem (and activities that promote them, both in the classroom or on-line), help students work out their own knowledge based on the information received, and also based on their previous experience.

2. ACTIONS BASED ON EVALUATION. Both self-evaluation and classmate-peer evaluation are straightforward ways to improve students' abilities to review their own personal work and to think about a better way to accomplish the objectives established by the professor.

To begin with, we will focus on the second group (classmate-peer evaluation). Classmate-peer evaluation allows tracking the performance of the student on a continuous basis. In addition, students learn how an evaluation is made, and the final result is a better capacity of self-evaluation.

Classmate-peer evaluation is usually limited to a small group of students (let's say a class of 25). For instance, the students are divided in groups of four, and are asked to make a collaborative work (e.g. report on a subject, laboratory practical work...). Each one of the members of the group evaluates the other three. Notice that, at first, the evaluations may not be accurate. For that reason, the professor should find a non time-consuming way to check them.

The way to do this is to provide the students with the guide for evaluating the work of their peers in the group (or their peers in the other groups of the class). That guide should be given at the beginning of the semester. The guide should focus on the aspects the professor considers the most important.

Furthermore, the effectiveness of peer evaluation depends strongly on ensuring proper feedback on a timely basis. Professors should provide this feedback accurately and properly but, as the number of student increases, this timely feedback becomes more and more cumbersome.

In order to cope with that difficulty, information technologies tools can offer some help. We propose the following key functionalities for such a classmate-peer evaluation tool.

1. Students fill an electronic form with the evaluation of their peers.

2. All the evaluations are saved in a database and are identified both with the name of the student being reviewed and with the name of the reviewer.

3. The tool should compare the evaluations from all the students involved (usually three) in order to validate the goodness of the evaluation itself. If an evaluation is quite different from the others, the tool raises an alarm to the professor, who should review it.

4. The professor reviews the evaluations and marks them as valid or invalid. The system will merge professor’s evaluation with the valid ones.

In this way, peer evaluation is much more effective and less time-consuming, so professors could spend more time giving feedback to their students than evaluating them... which is more profitable.

Sunday, April 20, 2008

ARTCUBE: Merging art and technology, or technology and art?


This is one of the most amazing things I have found in my new job at the European University of Madrid – Laureate International Universities.

ARTCUBE is a novel proposal lead by one of the professors of my department, Lino García Morales, who is an engineer as well as an artist. His hypothesis is that artists, engineers, architects, and communication professionals could work together on inter-disciplinary projects towards the creation of pieces of art in the novel “digital sculpture” discipline.

My first impression was that ARTCUBE proposed just a new way of making art, but now I understand that it is more than this; ARTCUBE is a vehicle for the instilment of Information Society in the depth of citizens minds and also a breakthrough way of educating young audiovisual telecoms engineers both on their creative soft-skills and also (and more important to me) on their understanding of the digital contents business approach as the engine of those new telecommunication products and services that should change the way people understand the world and their lives, forever.

The technical approach of ARTCUBE is quite straightforward: to create elementary bricks (signal processing hardware and software elements, which are called art.cube ), and to define interfaces and rules that these art.cubes will be using to interact (art.nexus).

From the engineering education standpoint, ARTCUBE is a very powerful tool. For that reason we are now launching an initiative that will offer our students the possibility of developing trans-disciplinary final grade projects in our new ARTCUBE laboratory facilities. I love my new university, which is so opened to education innovation!

See http://www.artcube.es/ for more information or talk to lino.garcia@uem.es


Sunday, April 13, 2008

Learning objects and learning strategies for succesful e-books

We have just read an article in UNIVNOVA, a Spanish newsletter designed as a media to think about University in the future. This article dealt with learning strategies for e-learning and the interaction between these learning strategies and the learning objects. You can view it at http://www.um.es/ead/red/19/esteban_zapata.pdf

It is an article from two Spanish psychology professors in which they make some questions about what the relationship should be between learning strategies and learning objects in an e-learning environment. After reading this article, I was considering useful to think about learning objects and e-text books. Which should be the learning objects a good instructional e-text might have in order to be successful?

Students can use different learning strategies based in their previous personal experience, their previous cognitive resources. This is called metacognition by psychologists (the background you have to approach a learning experience)

Bologna process is oriented to an only goal: “student learning”, so methodology and contents (e-books, technical notes…) have to be flexible enough in order to get this goal. Each student has his own personal resources so the contents have to be flexible enough in the sequencing. Two different students may sequence contents differently.

Contents should have a default sequencing that may be slightly changed by the student. We used “slightly” deliberately. As we are dealing with undergraduate students, we are supposed to give them a specific path, providing they have the possibility to change it. This shouldn’t be so important for postgraduate or life-long learning students.

Contents need a guide of use to support the specific learning strategy related to the area of knowledge. Different learning strategies contribute to achieving different skills in the students. For instance, areas like engineering need learning strategies that promote complex thinking in order to divide complex problems in a sum of more simple ones.
Our proposal is to consider three types of virtual contents for Bologna (technical notes, workgroups and deliverables). These contents should contain different learning objects and be associated to one or various specific learning strategies. The learning strategy adopted should be oriented to develop in the students certain skills an engineer must have.

Thinking about our reflections in the DICE Forum about e-text books, we can state that a successful e-text book has to include a specific learning strategy with a flexible sequencing that professor may select for students. Of course, each e-text book should include several learning objects to achieve our goal.

For example, each chapter of an e-book may have these learning objects:

Basic text
URLs included within the text. They can be links to other sections of the e-book or to internet web pages (similar to wikipedia)
Self-evaluation

The associated learning strategy would be the default sequencing of the e-book.

Please, give us your feedback on e-text books. We are strongly convinced they are going to be an important tool in the future University we are designing today.

Sunday, March 30, 2008

Let’s think about e-books and new technologies for learning


We’ve been participating in the DICE-PUFSIG workgroup of the IMS Global Consortium, devoted to the Dynamical Instructional Content Exchange, for almost two months.

The end goal is to define use cases that reflect most of the uses of an advanced e-text book, on a global basis: e-text books can only be successful if they are independent of the underlying technology, and oriented to a mass market, gathered from customers all over the world.

In this effort to accomplish that task we shared some information about the situation of e-books in Spain, which is quite different from that of the United States.

In Spain, there is not a business model for re-buying and re-selling used text books on a large scale basis. Only individuals sell them through internet. As a result, market lacks used books. For that reason, e-books compete directly with new books, although they are not very popular.

Regarding primary and secondary school environment, text books change from year to year, that is, children and teenagers cannot get used books from their brothers. People are used to pay for text books without having any refund, but they complain about high prices. To solve this,Government pays a “book check” to families with low income or more than two children. E-books can improve the learning experience and reduce the prices families invest on education, and also provide much more services for the same price.

At University, students rely on their lecture notes to study, and borrow books from the library. They buy cheap technical notes edited by the University. University libraries have a number of copies of text books as a function of the number of students registered in a particular subject. Students are not used to buy a book per subject and, for this reason, they are not willing to invest money on e-books. Nevertheless they could probably change their minds if e-text books offer a comforting and effective learning experience and learning process improvement.

There are some e-books repositories available for free at public Universities, but statistics of usage are discouraging. This is due partly because of the shortage of books in some subjects and partly because of this e-text books are just plain text ( i.e. you can watch them on your screen, but interactivity does not exist).

The challenge is to define attractive e-text books that give the students new possibilities to improve their learning experience. These e-text books should be interactive, flexible and contents should evolve as faster as possible. All the same, users should have the possibility of improving the content with their comments or suggestions.

Europe is suffering a crisis in its education system. School and College are failing to motivate students. Old methodologies are not working anymore.

Young people are the Web 2.0 generation and if we succeed in adding the Internet 2.0 philosophy to the new e-materials and learning processes, not only would we improve the learning experience but also could find a new way of motivating young people.

Could you share with us your vision about the learning experience in your country? Which capabilities do you think are important for an e-text book to be successful?

Roma: Global Vision and Respect R&D and Innovation



http://telecostyle.blogspot.com/2008/03/roma-visin-global-y-respeto-la-idi.html

Friday, February 29, 2008

A lesson from Steve Jobs



Dear friends,

Now you are students at my current university
European University of Madrid (UEM) - Laureate International Universities but next telecoms professionals of the 21st century.

Try this lesson from Steve Jobs: University can be the start-up of your creativity, Try this lesson from Steve Jobs.

http://www.youtube.com/watch?v=ykUyVFkizfQ&feature=related

http://www.youtube.com/watch?v=X4xO1QUKYxM&feature=related

Best,

Rafa

Thursday, November 01, 2007

Wireless pipes are coming...


So... Is it going to be finally a big fat pipe, over wired or wireless? Web 2.0 supporters and normal subscribers (my dad and my mum!) have been demanding them (fat pipes) for a long time. As a residential customer, I do not want to use the homepage of Stratheden Telecom. (Stratheden was the street where I used to live). What I really want to pay whoever £10 a month and be able to get to my Facebook / Myspace / Wikipedia / Ebay / Blogger / Gaming accounts in no time. I might want to pay £5 a month to my favourite news-site or to download real-time Spanish TV over the Internet, but that will be up to me.

Big fat pipes over wireless are the next revolution. A supplier told me the other day that he was tired of dial-up over wireless. He meant E-GPRS, of course. Wi-Fi on mobile handset is becoming ubiquitous (as it is a de-facto feature in mobile computers). HSDPA coverage is not that bad... and Verizon and Vodafone seem to be moving into LTE.

And even if charges for mobile voice and data traffic are still more expensive that the equivalent on a wire, the challengers are eroding those margins and tariffs are coming down.


In the UK, Hutching 3G has announced a deal with Skype. Users will be able to use Skype on their 3G handset for a flat fee of £10 a month. Now, that is not panacea, as many user are not using hundred of their free minutes that they receive for their monthly subscriptions... but it is a start!

In Netherlands, there used to be 5 mobile operators for a population of around 16 million. Due to the limited customer base of the country, one of the licensees, O2, was not performing well and sold the business to an independent private equity firm for just EUR25 million in 2003. The new brand, Telfort, started to open the network to MVNOs in order to acquire traffic and customer base. This strategy was very successful for Telfort, who sold the business to KPN for EUR 1 billion in 2005, and also contributed to great competition in the Dutch market where a couple of dozens of MVNOS have grown over the last few years. The mobile virtual network market in the Netherlands is among the most active in the world and, on the top of it, the spectrum which was originally set aside as an interference buffer between DECT and GSM networks (the 'guard band'), will also be made license free for low power indoor GSM networks.

Competition is creating fat cheap wireless pipes. This is great news for the customers! And, beside, on the wired side, BT is even partnering with FON...

Thursday, July 12, 2007

Mobile Television is With Us

A beach umbrella, two sons, two nephews, three paipo boards (for the children), a beach chair (for me to watch the children), several bags…. ‘May I buy the newspaper?’ – I asked. No answer, just everybody stopped on their way to the sand, but I could read their minds – ‘ Dad, do you really think you will be managing to read it?’. Nevertheless… I bought it; indeed I have spent all my life tackling the impossible.

A leaflet slid down from inside the newspaper. ‘It is one of those promotions like collect a hundred coupons and get the crockery that princess Letizia uses all Sundays’– I thought. But it was not; you only needed five coupons and 139 € just to get a small and portable digital terrestrial television set. That Sunday Fernando Alonso was going to fight against young Hamilton in an amazing Formula 1 race at Silverstone circuit, and I had already accepted that I was going to miss it! But I thought for a moment that the small 139 € gadget could be the solution; if someone had offered me that small TV, and provided I had been wearing my trousers (the ones that carry my VISA) and not my swimming trunks, I am sure I would have bought it.

Yes, digital television, either fixed and portable (DVB-T) or mobile (DVB-H), is with us. The other day I was in Caracas promoting the DVB standards, and watched a DVB-H demo (the Nokia terminal is really cute). It was amazing; mobile TV (both broadcasting DVB-H or on-demand IPTV) will success, as sure.

Not only is mobile TV going to success but also Terrestrial Digital Television (the DVB-T standard concept, I mean, not the other standards).The simple idea of transforming one’s old television set into a universal service device (for only 30 €) that can bring everybody most of the advantages of current pay-TV television, for free, is really amazing.

I explained the concept to the taxi driver that took me to Simon Bolivar’s airport. He was delighted. The 29 € that a DVB-T decoder costs also delighted him. Indeed, he would be able to purchase almost two of those low-cost decoders with only the amount of a single to-the-airport service.

By the way, if you are travelling to Caracas I can send you his phone number and he will pick you up at the airport.

And be careful with the bumps!


Friday, July 06, 2007

MNVO Fever


Mobile Virtual Network Operators are the latest twist in the strategy of many Service Providers who missed the 2G and 3G wagon a few years ago... Not only Service Providers, other corporations (Carrefour, The CarPhone Warehouse, Disney, 7-Eleven, ESPN, Tesco, Virgin, Wal-Mart...) have launched MVNOs over the last few years trying to leverage the power of their brand for consumers.

According to Deloitte, by 2010, the MVNO market share in Europe is expected to grow up to 25%, becoming a critical area for those players who want to increase presence in the telecom market.

We can talk about two extremes in the strategy of the MVNOs. On the one hand, some MVNOS focus on pre-paid (lower-end) customers, using the brand, distribution channel, customer service and, obviously, price, as differentiators. Their technology is usually 2G and they count with a reduced portfolio of services (Voice and SMS).

On the other hand, we can talk about MVNOs that focus on business users, vertical markets, machine-2-machine applications and other niche markets. They attack with service innovation, data services, content, cutting-edge terminals and, obviously, brand and customer service.

In order to facilitate the set up of the MVNO, MVNE (Mobile Virtual Netwok Enabler) offer a number of strategies that require more or less CAPEX and OPEX expenditure. The use of an MVNE is key for many operators, with regards to what hardware and expertise they must acquire so they can launch their service successfully. The HLR (Home Location Register), central database that contains details of each mobile phone subscriber that is authorised to use the network, is a key element in this strategy.



Some pros about owning the HLR are:

- The operator has more flexibility with regards to product design and billing strategy.
- MSISDN range reservation.
- The HLR will allow a better implementation of personality´s security.
- There is no need of process and SLA with other companies (MNO/MNVE).
- There are less worries about resources, change management... etc.
Some cons about owning the HLR are:

- Higher investment, obviously, in CAPEX and deployment work.
- Dependency on skillful professionals.
- Change and implementation process for new products are responsibility of the operator.

A similar analysis can be done about owning or not a core network and the long-term benefits, depending on the strategy of the MNVO.

Saturday, June 23, 2007

Voice: Still a Traditional Service?

At the beginning of June I attended VON Europe Spring'07 in Stockholm. 4 days full of social networking, analysis, sharing and discussions regarding where the world is going with regards "voice on the network"... or at least the telecomms world.

Actually, it was not "just voice"... Fixed-Mobile-Convergence, Business Models, Services, Applications, Access, Content, Architectures, Trends, Protocols, Codecs, Disruptive Technologies...
and much more. And, of course, it was also about getting the conference goodie bag that contained the usual useful items such as a (black) t-shirt, a Swedish newspaper, two Telecoms magazines, one pen and a great laser pointer with the logo of the main sponsor.

In my opinion, one of the best speakers was Jan Larsson, Senior Strategy and Corporate Development Manager at TeliaSonera. Jan talked very clearly about two different worlds: The Access Layer and The Applications Layer. He described "voice" as a very mature predicatable application and explained that it would be very difficult for a traditional telco to control both worlds… In a way, he was talking about the competition that the Service Providers have with the Content Providers.

92% of the internet traffic is peer-to-peer???? Web traffic less than 7% of the bandwidth??? Suddenly, what happened to Voice? Wow.. This is a new world... The traditional Service Providers are feeling the heat from the cowboys that give users what they really want. And most of the times for free!! Do you want voice? Skype. Do you want to buy and sell? EBAY. Do you want email, bloggers? Google. Do you want your own IPTV? YouTube...

Facing this panorama, the incumbents will need to renovate themselves or face the inevitable: People want access... and applications. If you dont give them that, we can forget about NGN, forget about IMS, forget about charging, billing and control. Users demand applications... But how easy is to predict the success of an application? Oh dear... The gate is open...

Javier Sanz-Blasco

http://www.linkedin.com/in/jasanz

http://www.linkedin.com/in/jasanz

Co-opetition is the word

Last Thursday I attended a political meeting in Brussels about the European Space Area (ERA), which is the current framework of the R&D European policy.

Commissioner Potocnick (responsible for Science and Research) began the meeting saying that now the competition is with China, and that Europe is (in terms of R&D) a “team of stars” but not a “star team”.

A cold sweat ran through my body…. As most of you (my friends) now, my family is learning Chinese, because some years ago we envisaged exactly what Potocnik asserted.

Judith and I think that maybe competition is not the word, but co-opetition is. Indeed we are preparing a family journey to China in July 2009, to see a total eclipse of the sun, as well as Judith’s to build a bridge between the University of Shangai and the University of Alcala.

Saturday, May 26, 2007

Welcome!

This blog is intended to be a place for discussion about Convergence, Next Generation Networks technology, and businesses strategies (innovation, marketing and regulation) related to the new telecommunication paradigm that will cause a new telecom industry boom, soon.