Sspi day out_2014_comtech-leonardo_gil
0 likes221 views
This document discusses Comtech EF Data's Advanced VSAT Solutions for mobile backhaul, which provide efficient use of satellite bandwidth. It notes the rapid growth in mobile data usage and need for increased backhaul capacity. The solutions use technologies like dynamic SCPC, adaptive coding and modulation, carrier-in-carrier, and VersaFEC-2 coding to maximize throughput within the available satellite bandwidth. Comtech presents itself as the leading provider of infrastructure to help mobile network operators and service providers meet rising backhaul demands in a cost-effective manner.
Sspi day out_2014_comtech-leonardo_gil
- 1. © 2014 Comtech EF Data Corporation SSPI Day, October, 2014 Enabling 3G/HSPA Satellite Backhaul Leonardo Gil Alvares Sales Engineer [email protected]
- 2. Mobile-Cellular Subscriptions • # of mobile-cellular subscriptions worldwide is approaching population on earth -> will reach almost 7 billion by end of 2014 2 Source: 2014 Total & Per 100 Inhabitants, 2005-2014 By Region, 2014
- 3. Global Mobile Data Traffic • Global mobile data traffic will increase nearly 11-fold between 2013 and 2018 • Mobile network connection speeds will increase two-fold by 2018 • Over 2/3 of the world’s mobile data traffic will be video by 2018 3 Source: Cisco’s “Visual Networking Index: Global Mobile Data Traffic Forecast Update,” 2014 Exabytes per Month
- 4. 4 New Era of “Data-Centric” Backhaul for Telco/Celco
- 5. A Widening Gap Between Revenue & Traffic Driven by Data Usage • As MNOs migrate from 2G to 3G and 4G, their offerings shift from traditional voice-dominant to data-dominant services • Many multimedia services require significant bandwidth • Traffic growth is much higher than the corresponding growth in revenues • The rising traffic needs coupled with stagnant/ declining ARPU remains a major concern for MNOs – Monthly ARPU § 2G -> $5–15 § 3G -> $10-25 • Operator competition and the need to target populations with lower purchasing power should put continued pressure on ARPU Source: 2013
- 6. © 2014 Comtech EF Data Corporation Satellite Capacity Options for Mobile Backhaul: The Case for HTS and the Use of Ka-, Ku- and C-Band
- 7. Global Demand for Bandwidth 7Source 6/12:Comtech EF Data Proprietary
- 8. Impact of HTS • Some HTS designs are not optimized for the topology of cellular networks – Mobile operators using satellite backhaul likely prefer to do one hop over satellite to: § Optimize latency and/or § Due to regulatory obligations – needing need to uplink and downlink traffic within the country without passing through an international gateway – Most HTS systems were designed to optimize data rates for data usage (for consumer broadband or enterprise networks) § Traffic patterns of cellular backhaul may not have been fully taken into account – Some new satellites are highlighting the loopback capability as a competitive advantage Comtech Proprietary and Confidential 8 Source: 2013
- 9. 9 • Ka- vs. Ku-Band: Pondering Performance Side-by-side technical and cost comparisons of Ka- and Ku-Band HTS solutions show advantages and disadvantages for both system solutions. Ka = +BW vs. Ku = +Availability 1. A typical Ku-band rain fade rate is approximately 1dB/sec while the fade rate in Ka-band is significantly higher at around 3-5 dB/sec. 2. For a possible Ku-band attenuation of about ~ 4 - 6 dB, under similar conditions Ka-band attenuation range could be ~ 12 – 24 dB 3. Compensating for Ka-band attenuation with added Power (Satellite& Ground), can be costly 4. The challenge is to balance Bit/ Hz vs. Power/Availability vs. Cost
- 10. SatCom Infrastructure Technologies That “Extend” Bandwidth & Reduce Expenses Pillars of Optimizing Throughput Mod/Cod ROF Carrier-in- Carrier Technology Adaptive Coding and Modulation WAN/RAN Optimization 10
- 11. SatCom Infrastructure Technologies That “Extend” Bandwidth & Reduce Expenses Pillars of Optimizing Throughput Mod/Cod ROF Carrier-in- Carrier Technology Adaptive Coding and Modulation WAN/RAN Optimization Without DoubleTalk Carrier-in-Carrier With DoubleTalk Carrier-in-Carrier 11
- 12. SatCom Infrastructure Technologies That “Extend” Bandwidth & Reduce Expenses Pillars of Optimizing Throughput Mod/Cod ROF Carrier-in- Carrier Technology Adaptive Coding and Modulation WAN/RAN Optimization 0 10 20 30 40 50 60 70 Time 3:10 3:30 3:50 4:10 4:30 4:50 5:10 5:30 5:50 6:10 6:30 6:50 7:10 7:30 7:50 8:10 8:30 8:50 9:10 9:30 9:50 10:… 10:… Mbps ACM Operation and User Throughput User DR Avail DR 12
- 13. SatCom Infrastructure Technologies That “Extend” Bandwidth & Reduce Expenses Pillars of Optimizing Throughput Mod/Cod ROF Carrier-in- Carrier Technology Adaptive Coding and Modulation WAN/RAN Optimization 13
- 14. SatCom Infrastructure Technologies That “Extend” Bandwidth & Reduce Expenses Pillars of Optimizing Throughput Mod/Cod ROF Carrier-in- Carrier Technology Adaptive Coding and Modulation WAN/RAN Optimization 0 10 20 30 40 50 60 70 Time 3:10 3:30 3:50 4:10 4:30 4:50 5:10 5:30 5:50 6:10 6:30 6:50 7:10 7:30 7:50 8:10 8:30 8:50 9:10 9:30 9:50 10:… 10:… Mbps ACM Operation and User Throughput User DR Avail DR Without DoubleTalk Carrier-in-Carrier With DoubleTalk Carrier-in-Carrier 14
- 15. Today’s Mobile Backhaul Movement 15 • Today’s “Mobile Access” requirement has shifted from standard 2G TDM (E1) backhaul to mixed TDM/Ethernet backhaul. E1 E1 E1Ethernet Ethernet CDM625A with E1 + Ethernet SUBMUX CDM625A with E1 CDM625A + Memotec CXU across IP/Ethernet modem Static BW allocated regardless of actual traffic load Static BW allocated for each service (no sharing of satellite resources) Single BW defined for both services with shared access via QOS. Also, enables additional BW capability via ACM since backhaul is exclusively IP/Ethernet.
- 16. CDM-625A Performance Efficiency 16 For the CDM-625A : 16-QAM , ROF 5%, VersaFEC .780. a) Achieved a BER of 8.6 x 10-9 b) EIRP for Eb/No of 8.2 dB is measured at 17.18 dBW per carrier (the spec is 20 dBW) c) Occupied BW for the above modem parameters is 720 KHz
- 17. © 2014 Comtech EF Data Corporation Advanced VSAT Solutions for Mobile Backhaul
- 18. Advanced VSAT Solutions • Fully Managed Hub and Spoke network topology – Shared DVB-S2 outbound – Dynamic SCPC (dSCPC) Return based on VersaFEC/2 OutBound DVB-S2 Outbound dSCPC Pool (All carrier sizes shown as example only) Entry Channel 64 kbps Dynamic BW Allocation NetVue Network Management Hub Remotes 18Comtech EF Data Confidential
- 19. Dynamic SCPC (dSCPC) • Dynamic SCPC enables remote terminals to share one or more Bandwidth /Power Pools for return links • Terminals request bandwidth as needed – Load Switching is ideal for applications that can take advantage of available bandwidth § Terminal requests/returns bandwidth based on traffic level – ToS Switching is ideal for applications like video and voice that require fixed bandwidth § Terminal requests/returns bandwidth based on predefined ToS / DSCP values • Unused bandwidth is returned to the pool and is available to other users 19 Forward Link SCPC Return 1 SCPC Return 2 SCPC Return 3 SCPC Return 4 Entry Ch. Return ! Return Link Bandwidth Pool SCPC Return Links Dynamically assigned by MS All Hub-to-Remote traffic on shared Forward Link Remotes share Entry return channel when NOT assigned SCPC channel Comtech EF Data Proprietary & Confidential
- 20. Integrated Packet Processing • Layer 2 / Bridge operation – Offers true separation of end user traffic • Strongest IP packet processing – Mbps ceilings vs. PPS ceilings • Header & Payload compression – Eliminates unnecessary info transfer • Quality of Service (QoS) – Real-time traffic & other low priority traffic can seamlessly coexist on the same link without impacting voice quality or delivery of mission critical data 20
- 21. VersaFEC-2 • VersaFEC-2 is highly optimized to provide excellent coding gain while minimizing latency – VF-2 long block coding performance is better than DVB-S2/S2X normal block with 80 to 90% lower latency – Short block for lower latency • Supports 32-ARY constellation – With CnC and 5% Rolloff, CDM-625A can now achieve 8.4 bps / Hz spectral efficiency • Large MODCOD set with 18 dB range for ACM – 38 MODCODs (Long block) – 36 MODCODs (Short block) • Optimized constellations – Circular or Quasi-circular – Reduced SSPA backoff for higher order modulation 21Comtech EF Data Confidential
- 22. Comtech Network Planning Tool 22
- 23. Strategic News Huawei & Comtech EF Data Announce Launch of Integrated Satellite Solution Platform for Premium Enterprise Network Services • Successful interoperability test of Advanced VSAT Solutions and Huawei’s communication equipment • Jointly announced the launch of an integrated satellite network solution platform for Premium Enterprise Network services 23
- 24. Excellent Performance 24Comtech EF Data Confidential
- 25. Summary • Comtech EF Data is the acknowledged “Vendor of Choice” for SatCom Infrastructure Equipment • Our portfolio includes the highest performance & most efficient products • Our solutions: – Deliver the most value to MNOs and service providers – Facilitate the delivery of “premium” enterprise services • We have strategic relationships with key HTS vendors & will expand on these in the future 25 “Comtech EF Data has worked hard to refine bandwidth efficiency. We believe that their latest Advanced VSAT Solutions product line represents a significant step forward for the company in addressing the shift from dedicated circuits to shared systems.” Simon Bull, senior consultant for COMSYS