1. Technical kick-off meeting Grosuplje, Sept. 22-25 2008 Karl Johan Grøttum Northern Research Institute, Tromsø, Norway karl.johan.grottum@norut.no www.norut.no Networking for Communications Challenged Communities: Architecture, Test Beds and Innovative Alliances Grant Agreement: 223994

2. Robust data communication in the North Delay Tolerant Networks UAV-DTN UAV-UAV UAV-SAT UAV-SHIP DTN-DTN BFT Hikers PDA

3. Networking for Communications Challenged Communities: Architecture, Test Beds and Innovative Alliances Grant Agreement: 223994 Communication issues Northern Europe is a highly developed region Laboratory for distributed systems Fibre Infrastructure Communication at sea Communication in “empty” areas 13/06/2015www.n4c.eu3

4. Networking for Communications Challenged Communities: Architecture, Test Beds and Innovative Alliances Grant Agreement: 223994 Hikers PDA: E-mail, Web-cache and (Not So)IM Information-push (Your most important, RSS?) Weather (snow, rain etc. in-field Weather services) Health services (medical-, physical-, heart starter etc.) Map with GPS for own location: Maemo Mapper https://garage.maemo.org/projects/maemo-mapper/https://garage.maemo.org/projects/maemo-mapper/ Photo blog or ad-hoc blog (Crocopil application, Windows mobile with ad-hoc wlan net) 13/06/2015www.n4c.eu4

5. Networking for Communications Challenged Communities: Architecture, Test Beds and Innovative Alliances Grant Agreement: 223994 Local information: Operators and guides In-field Weather services Geology and biology Point Of Interests (telephone mountains?) Installations Authorities Fishing- and hunting-permit Access information (keys to cottages etc.) 13/06/2015www.n4c.eu5

6. Networking for Communications Challenged Communities: Architecture, Test Beds and Innovative Alliances Grant Agreement: 223994 Nokia 810 application: Maemo Mapper [#1037] Power saving mode for slow motion (walking) Date: 2008-06-06 18:15 Sender: Andrew Daviel On the N810 tablet (internal GPS), it is not the Bluetooth, it is the GPS chip that consumes most power. The version of mapper I have (2.4.1) does not turn on the chip when using localhost:gpsd but does when using Bluetooth to talk to itself - I guess that the N810 listens for Bluetooth location requests and turns on in response (and times out if there are no requests for a while). So, for the N810 at least, this feature (power saving mode which makes a location request every 10-20 minutes) would save battery. Even better would be to use gpsd and the Nokia API to actually turn the chip on and off every few minutes - it takes about 30 seconds to get a fix if it has a recent position and almanac, so getting location every 5 minutes would be a 10x saving in GPS chip power (I estimate 10 hours of tablet battery continually polling the GPS vs 100 hours almost always idle)Andrew Daviel Date: 2007-08-02 16:16 Sender: John Costigan Maemo Mapper can't generally tell the bluetooth receiver how often to send updates. It is the receiver's decision. The only other alternative would be to connect to the receiver, get a single point of data, then immediately disconnect. Perhaps there is a GPS receiver that allows you to specify the time resolution of its output?John Costigan https://garage.maemo.org/tracker/index.php?func=detail&aid=1037&group_id=29&atid=188

7. Networking for Communications Challenged Communities: Architecture, Test Beds and Innovative Alliances Grant Agreement: 223994 Asus Eee application: Viking map 13/06/2015www.n4c.eu7

8. Networking for Communications Challenged Communities: Architecture, Test Beds and Innovative Alliances Grant Agreement: 223994 Asus Eee application: GPS Drive 13/06/2015www.n4c.eu8

9. Networking for Communications Challenged Communities: Architecture, Test Beds and Innovative Alliances Grant Agreement: 223994 iPhone application: Emergency 13/06/2015www.n4c.eu9 Distress Beacon GPS Locator Email: An emergency distress beacon was set off by Karl Johan at location 69.673233, 18.932022.

10. Networking for Communications Challenged Communities: Architecture, Test Beds and Innovative Alliances Grant Agreement: 223994 iPhone application: Air Sharing 13/06/2015www.n4c.eu10

11. Networking for Communications Challenged Communities: Architecture, Test Beds and Innovative Alliances Grant Agreement: 223994 Hardware 1: PDA List criteria's based on lessons learned from summer test and SNC. Power (battery etc.) Temperature Humidity Weight Functional specifications: GPS, Wlan, Bluetooth, SDK 13/06/2015www.n4c.eu11

12. Networking for Communications Challenged Communities: Architecture, Test Beds and Innovative Alliances Grant Agreement: 223994 PDA Candidates: Nokia N810 (compared with N800 and 770): http://wiki.maemo.org/Comparison_of_Internet_Tablet_Models http://wiki.maemo.org/Comparison_of_Internet_Tablet_Models Asus Eee PC: http://event.asus.com/eeepc/comparison/eeepc_comparison.htm iPhone: http://www.apple.com/iphone/specs.html USB stick: Bootable and good for winter test? Easy to carry and exchange with others. 13/06/2015www.n4c.eu12

13. Networking for Communications Challenged Communities: Architecture, Test Beds and Innovative Alliances Grant Agreement: 223994 Nokia N810 Power Management: 2.0mm Charger Connector Battery Capacity: BP-4L 3.7V 1500 mAh Talk Time (estimated): VoIP: up to 4 hours Standby Time (estimated): Up to 12.0 days Size: 128 x 72 x 14 mm Weight: 225 g 13/06/2015www.n4c.eu13 How long will the battery last? Idle, offline mode - 270 hours Idle, WiFi on, power saving mode - 100 hours GPS chip on, CPU polling GPS - 11 hours Idle, WiFi on, power saving mode OFF - 7 hours Idle, display backlight on - 9 hours 100% CPU (loop doing sqrt), display backlight off - 6 hours

14. Networking for Communications Challenged Communities: Architecture, Test Beds and Innovative Alliances Grant Agreement: 223994 Asus Eee 900 PC Battery: Up to 2.5 hrs* Power Output: 12V, 36W; Input: 100-240V AC, 50/60Hz universal Dimensions: 22.5cm(W) x 17.0cm(D) x 2cm~3.38cm(H) Weight: 0.99 kg Note: * Estimated maximum battery life under Windows XP is measured with BatteryMark 4.0.1 (in Eee PC Super Hybrid Engine Power-Saving mode, 40% LCD brightness, Wi-Fi off, BT off( if available), and camera disabled). Actual battery life may vary based on product settings, usage patterns and environmental conditions. * Estimated maximum battery life under Linux is measured with JEITA Battery Run Time Measurement Method (in Eee PC Super Hybrid Engine Power-Saving mode, JEITA defined LCD brightness, Wi-Fi off, BT off( if available),and camera disabled). Actual battery life may vary based on product settings, usage patterns and environmental conditions. 13/06/2015www.n4c.eu14

15. Networking for Communications Challenged Communities: Architecture, Test Beds and Innovative Alliances Grant Agreement: 223994 iPhone power and battery : Built-in rechargeable lithium-ion battery Charging via USB to computer system or power adapter Talk time: Up to 5 hours on 3G, Up to 10 hours on 2G Standby time: Up to 300 hours Internet use: Up to 5 hours on 3G, Up to 6 hours on Wi-Fi Video playback: Up to 7 hours Audio playback: Up to 24 hours 13/06/2015www.n4c.eu15

16. Networking for Communications Challenged Communities: Architecture, Test Beds and Innovative Alliances Grant Agreement: 223994 iPhone environmental requirements: Operating temperature: 32° to 95° F (0° to 35° C) Non-operating temperature: -4° to 113° F (-20° to 45° C) Relative humidity: 5% to 95% non-condensing Maximum operating altitude: 10,000 feet (3000 m) 13/06/2015www.n4c.eu16