Former Projects

GSM in a Box

In rural areas a reliable communication infrastructure is not always available, mainly due to the CAPEX and especially OPEX of traditional operator equipment. A small, cost-effective communication solution provides an alternative to a large scale and expensive GSM-based network provided by a professional carrier or ISP. In cooperation with the Fraunhofer Institute AICOS in Portugal such a solution was established during the ICT4DCC project. More.

You can find all results regarding this project in our publications.

SolarMesh

H-BRS participated in the SolarMesh project with two different topics. First, we looked at the different client steering solutions for IEEE802.11 based access networks. We conducted the investigation using techniques such as Cisco Assisted Roaming and Aggressive Load Balancing, Aruba Client Match and Lancom Client Steering.

Afterwards, we performed experiments on sub GHz WiFi transmission. We studied two different Sub GHz WiFi cards from Doodle Labs and Ubiquinty Networks. In addition, we have provided a circuit diagram for switching from standard WiFi cards to cards with a different frequency band.

Project website of the the Federal Ministry of Education and Research.

You can find all results regarding this project in our publications.

Internet Traffic Caching

Bandwith saving plays an important role on low-performance or cost-intensiv network links, e.g. when supplying remote areas with internet connections via satellite-links.

We focus on a theoretical and practical evaluation of different caching techniques. Our KPI for these techniques is simple, the amount of bandwith saved on a specific internet link.

The results show that approximatly 7% bandwith can be saved using a simple proxy server for caching. More.

You can find all results regarding this project in our publications.

WiLDToken

Rural areas often lack affordable broadband Internet connectivity. The resulting digital divide limits the access to knowledge, health care, economic growth and other services for billions of people.

Rural areas often lack affordable broadband Internet connectivity. The resulting digital divide limits the access to knowledge, health care, economic growth and other services for billions of people. More.

You can find all results regarding this project in our publications.