Here a video of the S60 Summit in Barcelona this year. Sorry for being late

Hi, as many before me I also hope to see many of you in Budapest. I plan to be there the full week and I will be a speaker for "Sensing the World Around You" and the 19th November.

As the communication among mobile devices is becoming more and more popular, the short range technologies are becoming more important.  If you have similar interests I hope to see you there.

Short Extract:

This talk will give a state of the art and future overview of short range communication potential on mobile phones. The benefits and drawbacks of today's short range technologies such as Bluetooth and WiFi are present with respect to the upcoming business cases as they are social mobile networking, wireless grid communication and others. Based on these facts, novel short range technologies are introduced such as Ultra Low Energy (ULE), Bluetooth (formerly known as WiBree) and Ultra Wideband (UWB) Bluetooth.

Full program

http://mktools.forum.nokia.com/invitation/fngoesbudapest/developerday

For all of us working in the field of meshed mobile networks, network coding is a nice way to increase capacity and reduce energy consumption.

At Aalborg University we have two implementations of network coding

- on Series 60 devices and

- on the Maemo platform

 If you are interested in this please have a look at the following videos

Even though I do not have any iPhone, I am reading all the news and discussions in the forums about this new toy. I am not into all the nice features, I am more looking into the battery issues. There are a lot of helpful advises how you can save energy on the new iPhone. Here I list some of them

- Do turn off WLAN

- Do turn off Bluetooth

- Reduce the brightness of the display

- Do not check too often your email

- Switch of 3G and use 2G instead (so why was there a 3G iPhone at all?, yes the GPS stuff!)

and here my personal advise

- Do not switch it on at all (operational time -> infinity).

Even though I have to admit that battery issues are not limited to the iPhone, I am quite happy to read all about it and use it for my students to explain why we need to work on energy saving strategies at all. As my research area is on energy saving mechanisms, the iPhone is a very good example. Steve Jobs made a very clever statement referring to the 3G chipset as power hogs. At that time he used this as an excuse why there is no 3G chipset on the devices. If you look at  http://www.apple.com/iphone/specs.htm, you can see that APPLE states, that the talk time for 2G is twice as high as for 3G. The GPS chipset is switched off automatically if not needed, but the 3G can only switched off manually.Therefore I changed the slogan of Apple "Twice as fast - Half the price" to "Twice as fast - Half the battery"

So whatever the 4G technology will be, as you should rarely use 3G, 4G you should never use if you care about battery. So long, I need to read more about it, very good motivation for my daily work. 

At 26th of May Forum Nokia holds an innovation Seminar in Barcelona.

https://mktools.forum.nokia.com/invitation/fngoesbarcelona

I will be talk about cooperative mobile networks and by this blog I would like to raise your attention to this topic.

The mobile world we are living in is more or less centralized due to the cellular network structure. Whatever mobile device you have, they seems to be obsessed by the idea to be connected to an "overlay" network such as 2G/3G, WLAN, or WiMAX. But this kind of architecture is limiting the mobile networking.

The real power lies in the cooperation among mobile devices - thus the future networks are formed by us users. Those formation are sometimes referred to as wireless grids and within those grids resources such as energy, sensors, memory, or wireless bandwidth can be shared such that a grid entity will offer better performan than stand alone devices.

For those of you being interested into the topic I will open up a discussion board and may we will see us in Barcelona.

For those of you being interested in external sensors for mobile phones, please check out the opensensor activity. The opensensor platform offers:

• open hardware design
• open software
• open educational material (PowerPoint and pdf)

There are already some sensor platforms on the market.Nevertheless, we have decided to design our own platform. The main reason was to have as much flexibility on the platforms possible. Flexibility refers to the number of connectable sensor parts as well as the wireless part. As the opensensor should be used for ongoing and future research project as well as for teaching purposes, the design of the board was kept as simple as possible. Throughout the evolution of the opensensor, we decided to skip the SMD technology and base the board on standard components that everybody can solder the opensensor without any special equipment. Based on standard components, the opensensor board is coming at a very low cost, which should enable a lot of researchers to implement their ideas in the field of wireless sensor networking on a real platform. As the mobile device group of AAU has a huge interest in the convergences of wireless sensors with mobile phones, the opensensor offers the possibility to communicate with commercial mobile phone. As most 3rd party solutions for wireless networking are closed solutions, we decided to make the whole opensensor concept freely available for everybody. Not just open source, but also open hardware and open teaching material. We hope to inspire other researchers to use our platform and eventually contribute to the project with more software or teaching material.

http://mobiledevices.kom.aau.dk/opensensor

MDD Post Card

click here

Hi, 

we are pleased to announce the Mobile Developer Days 2008 in Berlin, Germany from 10-12 September 2008.

After the first MDD event in Aalborg last year, Berlin was selected to host the next event. Berlin is a wonderful placeand very agile in the filed of mobile applications.

Please visit the web page for the very first ideas and maybe you have some ideas how to extend the event. Currently the following main tracks have been identified:

- Social Mobile Networks

- Platforms and Programming 

- Economical Challenges for Mobile Applications

www.mobiledeveloperdays.com

or

www.mobiledeveloperdays.mobi