Ka Band Satellite Internet – Muhammed Halil Şahiner / Martin Telekom AŞ
Nowadays, rising generation communication and need demands of all consumers from individual users to corporate companies increase the need of wideband internet usage. After the developing of communication infrastructure, these needs are tried to satisfy by wireless communication organs like Fiber Optic, 3G/4G and Wi-Fi. Although these kinds of communication infrastructures are in many places, the satellite communication is an alternative come to mind in the places that don’t have enough substructure or need in high quantity of investment for setup cost.
Increase in wideband communication needs depending on developing technology and high costs and expensive equipment in Ku and C band substructures promote people to use Ka band satellite systems. Under favour of Ka Band satellite technology, wideband communication services are able to offer high speed and low equipment. The same frequencies could service to users from satellite footprint. By this means, it happened possible to reach higher satellite capacities and as a consequence of this, Ka band internet access prices became to be able to compete with terrestrial wideband services. Also, instead of involving a wide area as in Ku and C band satellites, as a result of smaller coverage area and high frequency (26,5-40 GHz) Ka band end user antennas could be small sizes.
Ka band services are using especially in geopraphies that has inadequate communicate substructure such as Middle East, Africa and South Asia. First of all, it is possible to organize areas of usage,
- Wideband internet services
- VoIP, RoIP
- E-education
- Broadcast services
- Institutional applications
- Mining and Petroleum Institute
- Tele-Health Services
In this article, we’ll dwell on the embedded communication solutions that help to increase usage prevalence and integrated work with Ka band solutions.
Embedded Communication Solutions Integrated with Ka Band Satellite Internet
To request to send HD live broadcast in publishing area, to provide economic IP communication in the places unfavorable substructure, GSM coverage zone in the places doesn’t have any GSM coverage zone make Ka band usage service in wide area.
Modeo Encoder
Nowadays, HD video usage became pretty popular. For HD video broadcast by Ku band satellites, more satellite capacity and big and expensive equipment usage are needed. To transfer these HD scenes by way of Ka band satellites, the devices able to fit the bill are needed. For HD video broadcast with sharing internet services proffered by Ka band satellite operators, dynamic Encoder that different from standard ones and suitable to work for band wide is must. Our group firm CTECH saw this need and developed home production Modeo Encoder. 2 key features that Modeo Encoder has are,
- Adoptable Bitrate Algorithm
- Bonding Algorithm
The content is coded with more than one bit rates and the video stream is made over the Internet by ‘Adoptable Bitrate Algorithm’ developed for Ka band Internet services. Modeo Encoder decides the most suitable video bit rate and perceives the upload rate and satellite delay. Through, it became possible to video transmission suitable for changing satellite band wide and delay in satellite. In case of more than one upload capacity needed to send HD video content, it is possible to compound Modeo Encoder and Bonding Algorithm of different satellite modems’ capacities and reach higher speeds.
VoIP
Our group firm ClickNET that bring Ka band Internet services into use in many countries based on the agreement with global satellite operators serves VoIP service with Ka band Internet access. Without needed any extra investment with IP phones, making telephone conversations, over IP protocol are possible. By this means, making cheap and free- location telephone conversations over Ka Band Satellite Internet Service is possible.
The attention should be paid in some points of VoIP applications over internet. One of them is current band wideness. Ka band internet services meet the different band widths needs for VoIP. Second point is delay period. Recommended delay period by ITU is 400 milliseconds. This time is less than requisite time of 500 milliseconds for transmission of satellite signal between earth station and satellite but there is no problem in this implementation. Another topic is package losses. The operating logic of VoIP is delicate internet connectivity. There are lots of factors in satellite communication that affect satellite signal. That’s why, BER value (Bit Error Rate) need to be pretty low, initially. For warrant VoIP traffic transmission, QoS and prioritization should be done. There are various developed coding algorithms and the most common one is G.729 Codec. 8 kbps capacity is needed for G.729 coding. Other current standard is G.723 and for this, 5.3 kbps is needed.
RoIP
Another service we offer as ClickNET with Ka Band Satellite Services is RoIP (Radio Over IP) solution. Due to this solution, analogue transceiver systems (VHF, UHF) could be work with internet networks. At the present time, the availability to usage of commonly used analogue transceiver systems over Ka Band Satellite Systems offers economic advantages to answer the communication needs. On the system coattails, an integrated solution with other systems like VoIP etc. over IP is provided.
The studies about making other communication systems able to work over Ka Band Satellite Systems are done and tests are ended up successfully. We could count the systems that provide GSM communication carry over IP like FemtoCell and GoIP between them.
Integrated solutions are provided by Ka Band Satellite Systems enrich the current communication technologies. Various more quality and economic solutions are provided by this technologic wealth will continue to increase quality of life of humanity.
