Abstract
In this paper is introduced the Inmarsat Global Area Network (GAN) as backbone to mobile networks. At the end of 2005 Inmarsat launched its BGAN service as the first high speed wireless data solutions with voice available on a global basis. The service is accessed through a portable, broadband satellite transceiver with antenna easy to carry as a laptop. The BGAN network consists constellation of Geostationary Earth Orbit (GEO) I-4 and I-5 satellites with an optimized ground network, which interconnects variety of terrestrial infrastructures at local BGAN users. This system employs bandwidth efficient modulation and coding techniques, capable of supporting variable bit-rate services and QoS depending on the needs of the application. The BGAN system is satellite component of 3G IMT-2000, specially the Universal Mobile Telecommunications Service (UMTS) standards. It will provide a near-global coverage overlay for the terrestrial networks, giving users service availability beyond the reach of terrestrial IMT-2000 networks. A range of supported terminals, personal devices, portable and mobile units linked with onboard entertainment, communications systems to remote base stations for civilian and military applications and SCADA or M2M are discussed.
Highlights
Inmarsat was the first international and nongovernmental Mobile Satellite Communications (MSC)operator and is still the only one to offer a mature range of modern communications services to maritime, land, aeronautical and other mobile or semi-fixed users
At the end is necessary to conclude that Inmarsat Broadband Global Area Network (BGAN) devices are small very powerful tools for use in remote and rural environments for all mobile and ground -based civilian and military applications
The fixed or mobile BGAN handsets can be deployed onboard ships, land vehicles, aircraft and temporary accommodation at camps or bases
Summary
Inmarsat was the first international and nongovernmental Mobile Satellite Communications (MSC). Founded in 1979, the keystone of the Inmarsat strategy is that since 2004 is supporting the Broadband Global Area Network (BGAN), which provides up to 492 Kb/s Voice, Data and Video (VDV) including Internet access for mobile, fixed and portable multimedia and many others advanced applications. The Supplementary Voice services is SMS with 160 characters, Voicemail, Call waiting, Call barring, Call hold and Call forward over 4 Kb/s circuit-switched Voice service and can be performed via a peripheral handset or headset This network is providing access via Inmarsat I-4/I-5 satellites on L-band frequency using Transmitter (Tx) at 1626.5-1660.5 MHz and Receiver (Rx) 1525-1559 MHz, full-duplex operation
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