TRUNKING. Trunking, Backbones and Mobile Backhaul over Satellite.

Transcription

1 TRUNKING, Backbones and Mobile Backhaul over Satellite Satellite trunking networks provide local and mobile networks with access to the internet backbone or to the mobile core. Providing trunking, backbone and backhaul services to ISPs and telecom operators requires constant scrutiny of the operational expenses due to a highly competitive market with razorthin margins. The FlexACM implementation doubles the data throughput in trunking, backbone and mobile networks over satellite at optimal service availability. Satellite service providers, teleports and satellite operators that provide these services are faced with new and complex challenges to maintain their competitiveness, while remaining profitable. Technical solutions to deal with these challenges and to increase efficiency over satellite are more essential than ever. Flexible business models based on DVB standards for satellite communications, delivering the best Service Level Agreements (SLA) and offering trunking services at competitive prices, put service providers back in the game. Rev. 4/218

2 End-to-End Efficiency for Networks Efficiency is at the core of technology in trunking and backbone networks, with record-breaking speeds of up to 5 Mbps over a Ku-band 72 MHz satellite transponder at optimal service availability. At the same time maximum efficiency will generates double throughput even for lower and medium data rates. The Hub hubs and MDM modems support medium to high rate data communication (1 Mbps up to 425 Mbps) over satellite based on DVB-S2 and DVB-S2X. equipment embeds the latest innovative technologies to fully satellite hubs or modems are installed on each side of the satellite link. Networks in point-to-point, point-to-multipoint (star) or multiple point-to-point configuration are supported through Single-Channelper-Carrier (SCPC) or Multi-Channel-per-Carrier (MCPC) technologies. Within the same carrier, different services such as data, video, voice, internet access, VoIP, WiMAX, GPRS, 3G/4G can be aggregated. optimize trunking networks over satellite. Moreover, no extra or new ground infrastructure (antenna or amplifier) needs to be acquired to enable higher efficiencies. technology is based on DVB-S2, DVB-S2X and S2 Extensions and combines a set of innovative technologies in order to fully optimize the trunking and backbone links. These Next to hubs and modems, also provides peripheral equipment such as redundancy switches and frequency converters to provide the trunking and backbone networks with extra stability and reliability. technologies are FlexACM, Cross-Layer-Optimization, Clean Channel Technology, Equalink 3, Automatic Uplink Power Control (AUPC), Bandwidth Cancellation and Wideband up to 133 Mbaud. DVB-S2 or DVB-S2X DVB-S2 or DVB-S2X TX: DVB-S2/ DVB-S2X RX: DVB-S2/ DVB-S2X TX RX 14 MHz 72 MHz 72 MHz 72 MHz SITE 1 SITE 2 SITE 1 SITE 1 SITE 2 SITE 3 MOBILE SITE 1 HUB INTERNET BACKBONE OR MOBILE CORE LOCAL INTERNET/ NETWORK OR MOBILE BASE STATION INTERNET BACKBONE OR MOBILE CORE Figure 1: Point-to-point network and point-to-multipoint network 2

3 Optimal Service Availability Communication lines over satellite need to be available at all times to exchange critical information and keep customer satisfaction at a high level. However, fading conditions could seriously disturb the satellite transmission and lead to temporary link losses. Fading conditions could be due to different circumstances: the choice of satellite (Inclined Orbit, Ku-, Ka- and X-band), environmental (rain, dust) or interference (between two adjacent satellites). Thanks to the auto-adaptive technology incorporated inside FlexACM these fading conditions will no longer interrupt the transmission between the hub and remote sites nor result in the loss of data. In fading conditions, FlexACM will switch to a more robust modulation and provide optimal availability. As soon as fading conditions are over FlexACM technology automatically switches back to maximum efficiency. Moreover, service priorities (e.g. video, data, voice) and Quality of Service (QoS) policies can be auto-adapted onthe-fly depending on the bandwidth availability through Cross- Layer-Optimization technology. FlexACM optimizes the throughput for fading sensitive satellites (X-, Ku-, Ka-band) but also for Inclined Orbit Satellites. KU-,KA-BAND, X-BAND, HTS INCLINED ORBIT SITE 1 SITE 2 Optimal bandwidth (Zero margin) Data, video, voice Acceleration & compression Voice File-share Sensor Video Shaping, QoS, priorities Video Sensor Voice File-share Bandwidth management Variation ( ThiMM ) Noise & Distortion ( NoDE) Adaptive Coding & Modulation (ACM) Legacy bandwidth Time Continuous three-layer feedback Figure 2: FlexACM and Cross-Layer-Optimization protect satellite links against fading effects 3

4 Committed Information Rates in Adaptive Environments Customer quote: turns Ku-band into C-band. is the only player in the satellite market that can provide different flavors of adaptive modulation and coding (ACM) which enables the service providers to adapt their point-to-multipoint network to their preferred business model. FlexACM technology provides Committed Information Rates (CIR) in highly adaptive satellite bandwidth environments for services such as video, VoIP or for customers demanding a fixed throughput at all times. The FlexACM Fixed Rate Flavor provides up to 7% gains compared to Variable Modulation and Coding (VCM) networks. FlexACM Shared Rate FlexACM Independent Rate FlexACM Fixed Rate SITE 1 SITE 2 SITE 3 SITE 4 Es/No (db) Es/No (db) Es/No (db) Es /No (db) APSK 9/1 32APSK 9/1 8PSK 5/ 32APSK 9/1 Bitrate (Mbps) Clear Sky (Maximum Channel Capacity) Rain fade Bitrate (Mbps) Clear Sky (Maximum Channel Capacity) Rain fade Bitrate (Mbps) Clear Sky (Maximum Channel Capacity) CIR CIR CIR CIR Bu er (Margin) against Fading Figure 3: Different flavors in FlexACM solution adaptable to the business situation of the service provider FlexACM Shared Rate: Fading at remote site 3 (8PSK) affects the throughput and bandwidth of the other sites ACM shared scenario is ok if all remotes are part of a same network Not fit for fixed rate services ACM version applied by majority of the market today FlexACM Independent Rate: Fading at remote site 3 (8PSK) does not affect the throughput and bandwidth of the other sites The sites are only influenced by their own fading conditions Not fit for fixed rate services FlexACM Fixed Rate: Fading at remote site 3 (8PSK) does not affect the throughput and bandwidth of the other sites A buffer (margin) compensates for any fading situation across the network through statistical multiplexing Customers can get CIR, even in adaptive environments for VoIP or video etc. Rest of symbols (bandwidth) can be distributed over network (PIR or Peak Information Rate) 4

5 Application Note Built-in Bandwidth Cancellation for Any Circuit The built-in bandwidth canceller completely operates in the A very granular licensing scheme digital domain providing unsurpassed performance with the provides a cost-effective solution for lowest possible residual cancellation noise resulting in the any application ranging from a low highest Post-Compensation rate 2 Mbps circuit up to very high (NLPC) performs real-time analysis of the complete received rate trunks allowing a pay-as-you-grow spectrum and reduces intermodulation interference that affects model. spectral efficiency. Non-Linear the demodulated carrier. Fractional licensing of the bandwidth cancellation option allows for cost-effective redundant setups. A very granular licensing scheme allows for a costeffective solution for low rate circuits up to high rate trunks. 5

6 KU-,KA-BAND, X-BAND, HTS INCLINED ORBIT BANDWIDTH CANCELLATION Bandwidth Cancellation Cancellation performed fully in the UPLINK FW RT Before BWC digital domain Built-in bandwidth cancellation FW RT up-to 72 Mbaud After BWC Bandwidth gain up to 33% MDM SATELLITE MDM SATELLITE Flexible network scenarios (SCPC, MCPC, Inclined Orbit Satellites) INTERNET / PRIVATE NETWORK INTERNET / PRIVATE NETWORK Superior Cancellation Performance Intelligent uplink power control Non-linear post compensation for intermod removal Best efficiency with FlexACM MDM SATELLITE AUTO- CORRECT UPLINK MEASURE ES/NO ANALYZE Equalink 3 PRE-DISTORTION RECEIVING SITE INSIDE FOOTPRINT MONITORING DEMOD +1% Equalink 3 Pre-distortion to compensate for the effects of imperfections in the filters and amplifiers of the satellite Bandwidth gain up to 1% (or 2 db) Support linear & non-linear links Supports 8PSK up to 25APSK Requires Saturated Transponders LARGER FOOTPRINT BETTER QOS MORE DATA HIGHER MODCOD Figure 4: Efficiency technologies Bandwidth Cancellation and Equalink 3 to further optimize the satellite link

7 Flexible Business Models In a market where throughput rates are increasing significantly and competition is fierce, service providers must be able to offer a flexible and affordable service to their customers to cope with be combined in the same satellite carrier with separate SLA requirements and rate options. Both Committed Information Rates (CIR) and Peak Rates are offered in an adaptive satellite changing market conditions and still remain profitable. s HUB and EL51 hubs house the unique Bandwidth Manager feature where both the IP and the satellite segment can be shaped. Individual customers are flexibly added or removed from the same network. Different services (internet access, VoIP, etc.) can environment at various speeds. Whatever scenario a service provider selects, the Bandwidth Manager allows business models dedicated to the provider s needs and profitability to be built flexibly. The HUB allows the service provider to rapidly and flexibly adapt his network to changing business conditions. FlexACM TRUNKING UPLINK SITE 1 CIR: 19 MBPS PIR: 25 MBPS SITE 2 CIR: 19 MBPS PIR: 25 MBPS HUB WITH CROSS- LAYER-OPT. IP/ETHERNET INTERNET / PRIVATE NETWORK INTERNET ACCESS, SLA 99,8 CIR: 1 MBPS PIR: 15 MBPS UDP TRAFFIC, SLA 99,85 CIR: 7 MBPS PIR: 8 MBPS VOIP TRAFFIC, SLA 99,95 CIR: 2 MBPS SITE 3 CIR: 25 MBPS PIR: 29 MBPS INTERNET ACCESS, SLA 99,85 CIR: 3 MBPS PIR: 33 MBPS VOIP TRAFFIC, SLA 99,95 CIR: 2 MBPS SITE 1 SITE 2 SITE 3 Figure 5: The HUB and EL51 Satellite Hub allow for flexible business models 7

8 SHAPING THE FUTURE OF SATELLITE COMMUNICATIONS More Information: Send a mail to: sales@newtec.eu Visit our website: Contact us: Cy N.V. Laarstraat 5 B-91 Sint-Niklaas Belgium Tel: +32 () Fax: +32 () Follow us: 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: