iXem Record

iXem Record 2007 is a research project conceived, elaborated and coordinated by the iXem Labs of the Electronic Department of Politecnico di Torino.


In the sphere of their wireless activity, the iXem Labs conceived the idea to design, realise and subsequently monitor the behaviour of very long distance wireless links able to work under extreme temperature and generally hostile environmental conditions, in order to investigate and consequently promote the use of low cost wireless systems especially for the realisation and setup of network infrastructures in the Third World, for wideband coverage of huge territories, where no wired technologies can be applied.


For this purpose, an International Research Team has been put together, under the coordination of Politecnico di Torino, to carry out a research activity regarding the realisation of a wireless network working at regulatory conditions, made up of low-cost commercial components, able to work over distances ranging till longer than 300 kms.


The research activity includes design, implementation and experimental validation of a wireless data network with star topology.
The main characteristic is the use of easy-to-manufacture low cost terminals, able to carry large bandwidths over huge distance.


The centre of the star is made up of three access points joined together and located on the Monte Rosa peak “Punta Gnifetti”, the third crest of Monte Rosa, the second highest mountain in Europe, at 4556 m osl. The terminals are located in the following positions:
Monte Cimone, Sestola, Emilia Romagna, Italy
Arcello, Pianello Val Tidone, Emilia Romagna, Italy
Valluga Berg Station, Sankt Anton am Arlberg, Tyrol, Austria
Verrua Savoia, Piemonte, Italy


Due to the planning difficulties in climbing mountains higher than 4000 m osl, two more terminals, useful for preliminary studies, are temporary hosted in the following positions:
Punta Indren, Alagna Valsesia, Piemonte, Italy
Politecnico di Torino, Electronic Department, Torino, Piemonte, Italy


The technology used to implement the network is Hiperlan type 2 and Wi-Max 802.16. EIRP regulatory requirements limited to 30 dBm is satisfied. All transmitters are being assembled in iXem Labs using commercial low cost components; antennas are provided by Andrew. Hardware setup and installation is carried out on site by iXem Labs personnel and local partners resources.