INCLINED ORBIT SATELLITES
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1 INCLINED ORBIT SATELLITES Maximized Efficiency for IP Traffic over Government Agencies and Service Providers are increasingly using inclined orbit satellites for the transmission of data for all their applications and services. The driving factor behind the transition towards inclined orbit The FlexACM implementation doubles the data throughput over inclined orbit satellites at optimal availability birds is an OPEX consideration. The inclined satellites provide a good alternative to reduce the bandwidth cost by half. Another driver is the need to source bandwidth over regions where satellite capacity is scarce. In order to extend the life of a satellite some satellite operators decide to put the satellite in an inclined orbit. The switch to inclined orbit operation has repercussions on the availability of the services as the satellite footprint shifts in a predictable and continuous pattern. Therefore it is more than ever essential to implement technology to optimise the throughput over inclined orbit satellites. This is necessary to increase margins, keep OPEX under control and to flexibly support government missions independent of the location around the globe. Rev.1 02/2014
2 How it Works Inclined orbit satellites can be defined by the fact that they exhibit an angle other than zero degrees with the equatorial plane. At the end of a satellite s life, when station keeping fuel is running low there is the option to go inclined. Station-keeping 6 degrees but in some extreme cases some satellites can go up to 15 degrees. Satellite operators have different drivers to put satellites into and to keep inclined orbit. is performed in two directions, East-West and North-South. Since the Equator runs in an East-West direction, with many adjacent satellites, East-West station-keeping is mandatory. The North-South station-keeping can be abandoned with the Extend the life of older satellites Opportunity to extend revenues Risk Mitigation to keep orbital slot until replacement result that the inclined orbit satellites start to make a figure 8 pattern. On the ground this could be experienced by having a weaker signal or lesser throughput during parts of the day when it is off axis. Most inclined orbit satellites operate up to For Service Providers and Government Agencies on the other hand the inclined orbit satellites give the opportunity to drive down bandwidth (OPEX) costs. Satellite in fixed orbit Fixed Orbit (10y) East South West Extending the life of a satellite by putting it in inclined orbit Fixed Orbit (9y) Inclined Orbit (5y) 0 Years 5 Years 10 Years 15 Years 2
3 Kings of Inclined Orbit is market leader in Trunking, Backhaul and Backbone networks over satellite and has a track record of VSAT, government & defense installations worldwide in Ku, Ka and C-band. In these markets s FlexACM platforms have been the favourite technology of choice for communication over. FlexACM is the unique and market proven end-to-end solution combining DVB-S2/S2X and a set of cutting edge technologies in order to optimise IP links over satellite at optimal availability. FlexACM is available on s entire product portfolio, including the Dialog Platform, Modems and Network Optimization Software. Cut Down OPEX Costs by More than 70% In the exercise of keeping OPEX under control or increasing margins and revenues, government agencies and service providers tend to migrate their services to inclined orbit satellites. Due to the link degrading conditions of these satellites (resulting in less throughput) the bandwidth is offered at up to a 70% lower price than normal transponders over the same area. Thanks to s FlexACM the throughput of data, voice and video can be doubled over inclined orbit satellites within the same available bandwidth, giving the agencies and service providers room for extra OPEX cuts. In fact service providers and government agencies benefit from three OPEX cut opportunities: Up to 70% lower bandwidth price by operating in inclined orbit mode Increasing efficiency by more than 80% over inclined orbit through s FlexACM with possibility for extra bandwidth cuts. 3
4 Optimal Availability Communication lines over satellite need to be available at all time to exchange mission critical information and to keep customer satisfaction at a high level. However, the footprint shift which comes naturally with inclined orbit satellites results in a periodic reduction of throughput and could cause link losses and packet drops if the correct technology is not implemented. Receiving conditions could drop as much as 6 db, which means that a low modulation scheme and increased error correction has to be used. Other effects that occur through inclined orbit operation are degraded cross-polarization performance, an increased range variation, range rate and Doppler shift. FlexACM is the auto-adaptive technology that will switch Throughput to robust modulation when the remote shifts into the fringe of the satellite footprint. As soon as conditions improve, modulation switches back to maximum efficiency. Throughout this operation optimal availability is guaranteed without link or packet drops. Moreover, through flexible bandwidth management and Quality of Service management, priority can be given to mission critical services in order to keep SLA (Service Level Agreement) requirements. FlexACM provides optimal availability in order to ensure mission critical information and maintain Service Level Agreements INCLINED ORBIT SATELLITE Normal satellite operation in clear weather conditions 6 db FlexACM Zero margin Inclined Orbit Satellite Legacy Modulation (Worst Case Scenario) 06:00 12:00 18:00 00:00 06:00 12:00 Time 4
5 Maximise Throughput in Inclined Orbit In highly competitive satellite markets with continuous pressure on pricing and margins, maximum efficiency is key to boost profitability. Other service providers or government agencies seek means to increase the throughput in the allocated bandwidth available to them without increasing capacity. s FlexACM is the communication technology of choice for many operators and government agencies delivering services over inclined orbit satellites. FlexACM combines DVB-S2/S2X with different technologies to get as much data through the same satellite bandwidth as possible. FlexACM will auto-adaptively set modulation parameters to the optimal point and overcomes distortion, noise and variation in the satellite link. gets as close to the zero margin level as possible allowing the full use of the satellite link. Up until 3 degrees inclination FlexACM can cover for most of the degradation. Beyond 3 degrees optimal efficiency can be achieved in combination with third party auto-tracking antennas. The tracking capabilities allow service providers, news media and government users to utilize cost-effective space segment on satellites in inclined orbits. Data Voice UPLINK REMOTE Data Voice Video Video THROUGHPUT Variation Zero Margin Level Adaptive Modulation Distortion DVB-S2 CCM Capacity (Legacy) TIME sflexacm +70% Throughput 5
6 INCLINED ORBIT SATELLITES Fixed Throughput for Inclined Orbit The fluctuating throughput that comes along with inclined orbit satellites tends to frighten away providers that need to transport Committed Information Rates (CIR) services over these satellites. configurations providing constant throughput at optimal availability in the most efficient way. In comparison to legacy and DVB-S2 CCM (Constant Coding is the only provider in the market to provide CIR (Committed Information Rates) in ACM is the only provider in the market with FlexACM, the unique option to provide both variable as fixed rate throughput in DVB-S2/S2X ACM (Adaptive Modulation and Coding) to fulfill SLA requirements. By bringing fixed rates and CIR to ACM addresses the service providers in point-to-multipoint and Modulation) networks, s fixed ACM brings more than 70% extra bandwidth for committed information rates. The buffer (fluctuating) bandwidth can be used for occasional services or non-critical information transport over satellite. Additional Capacity for additional Business CCM VCM FlexACM at fixed rates 6
7 INCLINED ORBIT SATELLITES Drive for More Throughput Flexible Alternative for Bandwidth over Congested Regions FlexACM is the technology of choice in the product offering to get more efficiency over (inclined orbit) satellite. Additional technologies such as Clean Channel Technology, Cross-Layer-Optimization and Bandwidth Cancellation will additionally boost the performance and increase the throughput. Above highly congested regions satellite capacity is not always available. Service Providers willing to start up business over these areas, or government agencies desperately seeking bandwidth over operational territories to support missions, tend to consider inclined orbit satellites as an alternative solution. FlexACM technology on board the Dialog s Bandwidth Cancellation also takes care of inclined orbit operations increasing link efficiency up to 30% s Clean Channel Technology TM improves links even further by offering an advanced filter technology allowing a low roll-off factor (0,05) and optimal carrier spacing adding a 15% extra efficiency In a first for the market, s Cross-Layer- Optimization TM is the combination and interaction between satellite bandwidth management, IP shaping and acceleration technologies in order to allow Platform and on all modems make it possible to quickly activate services over inclined orbit satellites at optimal efficiency and migrate applications to other satellites as soon as capacity becomes available. Dedicated technologies such as FlexACM, Bandwidth Cancellation, Clean Channel Technology TM and Cross-Layer-Optimisation TM maximize throughput over inclined orbit satellites maximum throughput at all time. 7
8 SHAPING THE FUTURE OF SATELLITE COMMUNICATIONS More Information: FlexACM White Paper Application Notes Government & Defence Application Note IP Trunking Product Leaflets Send a mail to: sales@newtec.eu Visit our webpages: Contact us: Follow us: Cy N.V. Laarstraat 5 B-9100 Sint-Niklaas Belgium Tel: +32 (0) Fax: +32 (0) Twitter.com/_Satcom You Tube Youtube.com/Satcom in Linkedin.com/company/newtec Slideshare.net/newtec_satcom North America Europe MENA China Asia Pacific South America Europe North-America South-America Asia-Pacific China MENA Tel: Tel: Tel: Tel: Tel: Tel: Fax: Fax: Fax: Fax: Fax: Fax:
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