OpenBTS
OpenBTS (Open Base Transceiver Station) adalah sebuah BTS GSM berbasis software, yang memungkinkan handphone GSM untuk menelepon tanpa menggunakan jaringan operator selular. OpenBTS dikenal sebagai implementasi open source pertama dari protokol standard industri GSM.
Infrastruktur Open GSM
OpenBTS mengganti tradisional infrastruktur operator GSM, dari Base Transceiver Station (BTS) ke belakangnya. Dari yang biasanya traffik di teruskan ke Mobile Switching Center (MSC), pada OpenBTS trafik di terminasi pada box yang sama dengan cara mem-forward data ke Asterisk PBX melalui SIPdan Voice-over-IP (VoIP).
The reference air interface (Um) uses a software-defined radio (SDR) on top of the Universal Software Radio Peripheral (USRP) USB board.
History
The project was started by Harvind Samra http://www.linkedin.com/in/harvindsamra and David A. Burgess.http://ecommconf.com/2009/speakers/davidburgess/ An aim of the project is to reduce the cost of GSM service provision in rural areas and the developing world to below $1 per month per subscriber.
Field tests
Live tests of OpenBTS have been conducted in the United States in Nevada and northern California. The necessary temporary radio licenses were applied for through Kestrel Signal Processing (KSP)—the original authors' consulting organisation firm—and granted for a short period of time.
Niue
During 2010, an OpenBTS system was permanently installed on the island of Niue and became the first installation to be connected and tested with by telecommunication company. Niue is a very small (in terms of population) country with a population of about 1,700, too small to attract mobile telecommunications providers. The cost structure of OpenBTS suited Niue, which urgently required a mobile phone service but did not have the volume of potential customers to justify buying and supporting a conventional GSM basestation system.
See also
Referensi
- http://openbts.sourceforge.net/ Official website maintained oleh OpenBTS original authors.
- http://gnuradio.org/redmine/wiki/gnuradio/OpenBTS Official project wiki, hosted di GNU Radio.
- http://openbts.blogspot.com/ Project blog
- http://sourceforge.net/projects/openbts/ Source code repository di Sourceforge.
- http://www.flickr.com/photos/h_u_p/tags/openbts/ Burning Man test network foto di Flickr.
- http://gnuradio.microembedded.com/openbts - A OpenBTS Wiki in Chinese.