Shaping the Future ofSatellite CommunicationsNewtec Proprietary – External UseSales Support: DVB-S2 Calculator TrainingJun...
Newtec Proprietary – External Use• What is it• Where to find it• How to use it• Input data• Output data• Performance speci...
Newtec Proprietary – External Use• This BETA version is an addition to the well-knowNewtec DVB-S2 calculator (which has ov...
Newtec Proprietary – External UseWill put you on the list toreceive free updatesREGISTER TODOWNLOADSales Support: DVB-S2 C...
Newtec Proprietary – External UseINPUT DATASales Support: DVB-S2 Calculator Training
Newtec Proprietary – External UseSelect the type of modulation.• DVB-S• DVB-S2• S2 ExtensionsSYSTEMSales Support: DVB-S2 C...
Newtec Proprietary – External Use• Select the hardware that is used as demodulator ormodem.• This will determine the limit...
Newtec Proprietary – External UseSelect the transponder operating mode. This field will beused to determine the advised IB...
Newtec Proprietary – External UseAllows to enter the transponder spacing in MHz.Typically this is 80 MHz for 72 MHz transp...
Newtec Proprietary – External UseSelect which data is to be used as input.• Allocated bandwidth• Baudrate• Info rateCARRIE...
Newtec Proprietary – External Use• Select the modcod from the drop down that will beused on the carrier. Depending on the ...
Newtec Proprietary – External UseIntermezzoABOUT LINEARAND NON-LINEARMODCODSSales Support: DVB-S2 Calculator Training64APS...
Newtec Proprietary – External Use• Select the roll-off factor that is used on the carrier.The roll-off factor will determi...
Newtec Proprietary – External Use• Select between normal and short frames.• Short frames have a slightly lower performance...
Newtec Proprietary – External Use• Select between pilot insertion on or off.• Pilots are additional synchronization symbol...
Newtec Proprietary – External Use• Depending on the system and hardware selected, anumber of encapsulation methods becomea...
Newtec Proprietary – External Use• GSE encapsulation supports addressing terminalsby use of a label.• This label can be 3 ...
Newtec Proprietary – External Use• Defines which type of traffic is used over themodems.• The type of traffic will determi...
Newtec Proprietary – External UseFor FER 1E-7 and 1E-3OUTPUT DATASales Support: DVB-S2 Calculator TrainingEs/No (=C/(N+D) ...
Newtec Proprietary – External Use• Energy per symbol over the noise density.• This is the required Es/No threshold in dB f...
Newtec Proprietary – External Use• Total carrier power over the noise density• This is a measure for the required satellit...
Newtec Proprietary – External Use• Energy per bit over the noise density.• This is the required Eb/No in dB.• It is calcul...
Newtec Proprietary – External UseInforate• The information rate (in Mbps) is the rate at theinput of the modulator part of...
Newtec Proprietary – External Use• Efficiency is displayed in• bits/baud (information rate divided by the symbolrate)• bit...
Newtec Proprietary – External UsePERFORMANCESPECIFICINFORMATIONSales Support: DVB-S2 Calculator TrainingCsat.pure.car/(No*...
Newtec Proprietary – External Use• This is calculated as Es/No + OBO + non-lineardegradation.• It is a measure for the nee...
Newtec Proprietary – External Use• Knowing what the available resources in atransponder are will give you an idea on what ...
Newtec Proprietary – External UseCsat.pure.car/(No*Rs)IntermezzoHOW TODETERMINE THEAVAILABLERESOURCES IN ATRANSPONDERSales...
Newtec Proprietary – External UseCsat.pure.car/(No*Rs)IntermezzoHOW TODETERMINE THEAVAILABLERESOURCES IN ATRANSPONDERSales...
Newtec Proprietary – External Use• If during the CW measurement the noise floor ofthe transponder is measured, we can now ...
Newtec Proprietary – External Use• If in our example the carrier is modulated with32APSK 5/6, requiring 3.5 dB OBO, the av...
Newtec Proprietary – External Use• This is the same value as Csat.pure.car/(No*Rs) butreferenced to the total transponder ...
Newtec Proprietary – External Use• The carrier-to-noise needed at threshold.• This is the sum of the Es/No and the non-lin...
Newtec Proprietary – External Use• The required input back-off in for optimalperformance• This point is the balance betwee...
Newtec Proprietary – External Use• The output back-off in dB as a result of the selectedIBO.• Remark that this is measured...
Newtec Proprietary – External Use• Carrier-to-distortion ratio as indicated by theNoDE™ tool in Newtec demodulators.• It i...
Newtec Proprietary – External UseOVERHEADSales Support: DVB-S2 Calculator Training
Newtec Proprietary – External Use• This is the raw FEC overhead.• For example 3/4 result in a FEC overhead of 0.750FECEXCL...
Newtec Proprietary – External Use• This is the additional overhead caused by the DVB-S2 framing (baseband framing, physica...
Newtec Proprietary – External Use• The IP encapsulation overhead as function of:• encapsulation method• label format• type...
Newtec Proprietary – External Use• This overhead is only applicable when thecomplete TSoIP is transported over the satelli...
Newtec Proprietary – External UseRATEINFORMATIONSales Support: DVB-S2 Calculator Training
Newtec Proprietary – External Use• In case of TSoIP that is transported as native IP, thisis the overhead caused by the en...
Newtec Proprietary – External Use• The effective rate at the input of the modem.EFFECTIVE IPRATE ANDEFFICIENCYSales Suppor...
Newtec Proprietary – External Use• The rate at the input of the modulator part of themodem, so after the interface block t...
Newtec Proprietary – External Use• The data rate as if only FEC and modulation would beapplied.• Sometime called the satel...
Newtec Proprietary – External Use• MODCODs are listed by their required satelliteresources and MODCODs that have lowereffi...
Newtec Proprietary – External Use• The ranking of MODCODs is based on the requiredresources Csat.pure.car/(No*Txp).• The M...
Newtec Proprietary – External UseEs/No• The required Es/No for the linear channel.C/N• The carrier-to-noise needed at thre...
Newtec Proprietary – External Use• The resulting output back-off in dB. Remark thatthis is measured with modulated carrier...
Newtec Proprietary – External Use• Csat.pure.car/(No*Txp)• This is calculated as Es/No + OBO + non-lineardegradation.• It ...
Newtec Proprietary – External UseLinear channelTABLEOVERVIEWSales Support: DVB-S2 Calculator Training0.000.501.001.502.002...
Newtec Proprietary – External Use• A 20 Mbps IP stream MPE encapsulated in DVB-S2(roll-off 20%, 16APSK 5/6 received by an ...
Newtec Proprietary – External UseInput parametersSOMEEXAMPLESSales Support: DVB-S2 Calculator TrainingSystem DVB-S2Demodul...
Newtec Proprietary – External UseEs/No (=C/N) [dB] 12.10C/No [dBHz] 80.03Eb/No [dB] 7.02Info rate [Mbps] 20.000Baudrate [M...
Newtec Proprietary – External UseSystem S2 ExtentionsDemodulator Hardware MDM6000-DH02-S2Ext DemodTransponder Multi carrie...
Newtec Proprietary – External UseEs/No (=C/N) [dB] 11.38C/No [dBHz] 79.89Eb/No [dB] 6.30Info rate [Mbps] 22.857Baudrate [M...
Newtec Proprietary – External Use• A contribution carrier operates in DVB-S at 27.5Mbaud 8PSK 5/6 with RO 25% in a lineari...
Newtec Proprietary – External UseINPUT DATASales Support: DVB-S2 Calculator TrainingSystem DVB-SDemodulator Hardware AZ910...
Newtec Proprietary – External UseOUTPUT DATASales Support: DVB-S2 Calculator TrainingEs/No (=C/(N+D) [dB] 12.21C/(No+Do) [...
Newtec Proprietary – External UseRESOURCESSales Support: DVB-S2 Calculator TrainingCsat.pure.car/(No*Rs) [dB] 14.22Csat.pu...
Newtec Proprietary – External UseRESOURCESSales Support: DVB-S2 Calculator TrainingSystem S2 ExtentionsDemodulator Hardwar...
Newtec Proprietary – External UseCsat.pure.car/(No*Rs) [dB] 13.80Csat.pure.car/(No*Alloc.bw) [dB] 13.39Csat.pure.car/(No*T...
Newtec Proprietary – External Use63.36 Mbps94.79 MbpsRESULTSales Support: DVB-S2 Calculator TrainingEs/No (=C/(N+D) [dB] ...
Newtec Proprietary – External UseYETANOTHEREXAMPLESales Support: DVB-S2 Calculator TrainingSystem DVB-S2 System S2 Extenti...
Get in touchFOLLOW USTHANK YOUDave SuffysNewtec Sales Support Managerdsu@newtec.eu
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Newtec DVB-S2 Calculator: Technical Training

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This is a technical training presentation on the renewed satcom Newtec DVB-S2 Calculator v2.17 and covers:

- DVB-S
- DVB-S2
- S2 Extensions

For all current Azimuth, Elevation and MDM series (both demods and modems) and includes Sat3Play terminals.

Officially launched beginning of June 2013, this DVB-S2 calculator replaces its widely spread predecessor (which had over 7,000 downloads).

To download the calculator: http://www.newtec.eu/services-training/dvb-s2-calculator

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  • Multi-carrier: in multiple carrier per transponder mode, the transponder is assumed to work with sufficient global back off in order to guarantee linear operation. No additional degradation due to distortion is taken into account. Single carrier without predistortion: when a single carrier occupies a full transponder, it can be driven further into saturation (into the non-linear region). This will on one side increase the satellite output power (hence the achievable downlink C/N) while on the other side will also increase the degradation due to non-linearity. A balance between optimal IBO/OBO and resulting degradation needs to be found. The parameters in the output field can be used for this.Single carrier with predistortion: in order to overcome some of the degradation effects due to distortion, Newtec can enable Equalink™ predistortion on the modulator side. This allows to drive the transponder even further into saturation, effectively increasing the possible throughput. This mode is selected for non-linearized transponders.Single carrier in linearized transponder with predistortion: in order to overcome some of the degradation effects due to distortion, Newtec can enable Equalink™ predistortion on the modulator side. This allows to drive the transponder even further into saturation, effectively increasing the possible throughput. This mode is selected for linearized transponders which have a different IBO/OBO relationship compared to non-linearized transponders.
  • This value is used to determine the maximum occupied bandwidth a carrier is allowed to have. Traditionally, DVB carriers where allowed an occupied bandwidth equal to the transponder bandwidth (defined by the -1 dB points with typical values 36/54 and 72 MHz). With the advent of automatic linear predistortion (Equalink™) it is possible to extend the carrier bandwidth to the occupy the full allocated frequency slot of the transponder.
  • Allocated bandwidth: allows to enter the allocated bandwidth. From that (using the selected roll-off factor) the usable symbolrate and resulting info rate will be calculated.Baudrate: allows to enter the baudrate (symbolrate) of the carrier. From that (using the selected roll-off factor) the allocated bandwidth and resulting info rate will be calculated.Info rate: allows to enter the information rate. The information rate is the raw input rate at the modulator board so including the encapsulation overhead. From that the needed baudrate (using the selected modulation and coding) is calculated as well as the needed allocated bandwidth.
  • Select the modcod from the drop down that will be used on the carrier. Depending on the selected system and hardware the list will be updated to reflect only valid selections.Remark that all possible MODCODs are present in this drop-down list. However some MODCODs might be less efficient than higher MODCODs. For a selected list with only the optimal MODCODs, please refer to the table at the bottom of the sheet.
  • For the upcoming release of the MDM6100 which will also be able to carry transport streams without any encapsulation (MPEG frames are directly injected into baseband frames), the encapsulation can then be switched off.
  • No label: GSE label addressing is not added. Remote terminals will filter out the data for their destination using the ISI mechanism (which leads to a maximum of 255 channels).Short label (3 bytes): 3 hex bytes are used to address individual channels/terminals. This allows for the addressing of 224 =16 million channels. Additional overhead is about 0.75% (when working with iMix packet sizes).Long label (6 bytes): 6 hex bytes are used to address individual channels/terminals. This allows for the addressing of 248 = virtually unlimited number of channels. Additional overhead is about 1.5% (when working with iMix packet sizes)
  • iMix: this is a standard mix of a typical internet traffic. It contains an typical mix of VoIP, medium size http packets and large packets. Average packet size is 404 bytes.TSoIP (including RTP): This is used in case a TSoIP is transported over satellite as native IP without encapsulating the TS packets first. The most efficient case of 7 TS frames per IP packet is taken which implies an fixed IP packet size of 7*188 + 20 + 8 + 12 = 1356 bytes. More details in the section TSoIP overhead.TSoIP (excluding RTP): This is used in case a TSoIP is transported over satellite as native IP without encapsulating the TS packets first, also here the case if 7 TS frames per IP packets is considered which implies a fixed IP packet size of 7*188 + 20 + 8 = 1344 bytes. More details in the section TSoIP overhead.This field is not applicable when TS mode (TS over ASI or IP) is selected as the transport stream packets are directly encapsulated in DVB-S2 frames without any overhead.
  • The performance data is provided for a FER (Frame Error Rate) of 1E-7 or 1E-3 when available. FER corresponds to BER. However in DVB-S2, BER is not easily measure because in case of link errors complete frames will be dropped. The only indication possible in DVB-S2 is the Frame Error Rate. When doing performance measurements, often a Frame Error Rate of 1E-3 is used because that can be reached in an acceptable time, if measurements are done at FER 1E-7, the measurement cycle would be too long. Performance at 1E-7 is extrapolated from these measurements.
  • Es/No (=C/N+D)Energy per symbol over the noise density. This is the required Es/No threshold in dB for operation in the linear (multiple carrier per transponder) channel. In case the threshold is needed for single carrier per transponder operation, add the “non-linear degradation value” to set the target Es/No (C/N) in the link budget program. This value is also displayed as “C/N” in the right hand side column.
  • The info rate is often used in link budget programs (such as Intelsat’s LST5) and the encapsulation overhead is entered as an additional percentage
  • Newtec DVB-S2 Calculator: Technical Training

    1. 1. Shaping the Future ofSatellite CommunicationsNewtec Proprietary – External UseSales Support: DVB-S2 Calculator TrainingJune 2013for v2.17Technical TrainingDVB-S2CALCULATOR
    2. 2. Newtec Proprietary – External Use• What is it• Where to find it• How to use it• Input data• Output data• Performance specific data• How to determine the available resources in a transponder• Overhead• Rate information• Table overview• Some exercisesTechnical TrainingDVB-S2CALCULATORSales Support: DVB-S2 Calculator Training
    3. 3. Newtec Proprietary – External Use• This BETA version is an addition to the well-knowNewtec DVB-S2 calculator (which has over 7,000downloads since launch) and covers:• DVB-S• DVB-S2• S2 Extensions• For all current Azimuth, Elevation and MDM seriesof demods and modems• Includes Sat3Play terminalsWHAT IS IT?Sales Support: DVB-S2 Calculator Training
    4. 4. Newtec Proprietary – External UseWill put you on the list toreceive free updatesREGISTER TODOWNLOADSales Support: DVB-S2 Calculator Training
    5. 5. Newtec Proprietary – External UseINPUT DATASales Support: DVB-S2 Calculator Training
    6. 6. Newtec Proprietary – External UseSelect the type of modulation.• DVB-S• DVB-S2• S2 ExtensionsSYSTEMSales Support: DVB-S2 Calculator Training
    7. 7. Newtec Proprietary – External Use• Select the hardware that is used as demodulator ormodem.• This will determine the limitations and performancedata according to the hardware that is being used.• Notice that only the demod-board performance isneeded here, there is no notion of modulationequipment.DEMODULATORHARDWARESales Support: DVB-S2 Calculator Training
    8. 8. Newtec Proprietary – External UseSelect the transponder operating mode. This field will beused to determine the advised IBO and OBO plusassociated degradation when operating in the non-linearregion in saturation.• Multi-carrier• Single carrier• without predistortion• with predistortion• in linearized transponder with predistortionTRANSPONDERSales Support: DVB-S2 Calculator Training
    9. 9. Newtec Proprietary – External UseAllows to enter the transponder spacing in MHz.Typically this is 80 MHz for 72 MHz transpondersand 40 MHz for 36 MHz transponders.Consult the frequency planning of the satellitein case of doubt.TRANSPONDERSPACINGSales Support: DVB-S2 Calculator Training
    10. 10. Newtec Proprietary – External UseSelect which data is to be used as input.• Allocated bandwidth• Baudrate• Info rateCARRIER INPUTMODESales Support: DVB-S2 Calculator Training
    11. 11. Newtec Proprietary – External Use• Select the modcod from the drop down that will beused on the carrier. Depending on the selectedsystem and hardware the list will be updated toreflect only valid selections.• Remark that all possible MODCODs are present inthis drop-down list.• However some MODCODs might be less efficientthan higher MODCODs. For a selected list withonly the optimal MODCODs, please refer to thetable at the bottom of the sheet.MODCODSELECTIONSales Support: DVB-S2 Calculator Training
    12. 12. Newtec Proprietary – External UseIntermezzoABOUT LINEARAND NON-LINEARMODCODSSales Support: DVB-S2 Calculator Training64APSK non-linear 64APSK linear
    13. 13. Newtec Proprietary – External Use• Select the roll-off factor that is used on the carrier.The roll-off factor will determine the occupiedbandwidth.• All DVB-S2 and CCT (Clean ChannelTechnology™) roll-off factors are supported.ROLL-OFFFACTOR (α)Sales Support: DVB-S2 Calculator Training
    14. 14. Newtec Proprietary – External Use• Select between normal and short frames.• Short frames have a slightly lower performance(- 0.1~0.2 dB) but have lower delay.• Typically short frames are only used in systemswhere the symbolrate is lower than 1 Mbaud andwhere delay becomes an issue.FRAME TYPESales Support: DVB-S2 Calculator Training
    15. 15. Newtec Proprietary – External Use• Select between pilot insertion on or off.• Pilots are additional synchronization symbols thatare inserted at regular intervals in order to aid incarrier synchronization.• It is advised to enable pilots in VCM and ACMsystems or in CCM systems that employ low FECs(for example DVB-S2 8PSK 3/5).PILOTINSERTIONSales Support: DVB-S2 Calculator Training
    16. 16. Newtec Proprietary – External Use• Depending on the system and hardware selected, anumber of encapsulation methods becomeavailable.• For transport streams, select “none”.• This will be used to calculate the encapsulationoverhead depending on the traffic type selected.IPENCAPSULATORSales Support: DVB-S2 Calculator Training
    17. 17. Newtec Proprietary – External Use• GSE encapsulation supports addressing terminalsby use of a label.• This label can be 3 bytes long or 6 bytes long.• Each terminal will then need to use its label tofilter out the traffic for that terminal.• In small IP trunking networks, there is no need forthese labels as terminals can be identified bymeans of the different ISI in the outbound carrier.GSE LABELSales Support: DVB-S2 Calculator Training
    18. 18. Newtec Proprietary – External Use• Defines which type of traffic is used over themodems.• The type of traffic will determine the average IPpacket size which in term will determine theaverage encapsulation overhead.• iMix• TSoIP (including RTP)• TSoIP (excluding RTP)• Not applicable (in case of TS)TRAFFICSales Support: DVB-S2 Calculator Training
    19. 19. Newtec Proprietary – External UseFor FER 1E-7 and 1E-3OUTPUT DATASales Support: DVB-S2 Calculator TrainingEs/No (=C/(N+D) [dB] 8.09C/(No+Do) [dBHz] 82.57Eb/No [dB] 4.45Info rate [Mbps] 64.786Baudrate [Mbaud] 28.000Bandwidth [MHz] 30.800Efficiency [bits/baud] 2.314[bits/Hz] 2.103Frame length [ms] 0.596Minimum baudrate [Mbaud] 1.000Maximum baudrate [Mbaud] 72.000Es/No (=C/(N+D) [dB] 7.94C/N [dB] 9.03Csat.pure.car/(No*Rs) [dB] 10.20Csat.pure.car/(No*Alloc.bw) [dB] 9.78Output data FER 1E-7Output data FER 1E-3
    20. 20. Newtec Proprietary – External Use• Energy per symbol over the noise density.• This is the required Es/No threshold in dB foroperation in the linear channel as listed on thedatasheets.• This performance is measured in an RF loopback.• C/(N+D) is as indicated by the Newtec demod’sNoDE toolEs/No = C/(N+D)Sales Support: DVB-S2 Calculator Training
    21. 21. Newtec Proprietary – External Use• Total carrier power over the noise density• This is a measure for the required satelliteresources• It is the product of the Es/No and the symbolrateand is calculated as C/No = Es/No + 10*log(SR)C/(No+Do)Sales Support: DVB-S2 Calculator Training
    22. 22. Newtec Proprietary – External Use• Energy per bit over the noise density.• This is the required Eb/No in dB.• It is calculated as Eb/No = Es/No – 10*log(n)with n = the spectral efficiency in bits/baud.• In case the Eb/No threshold is needed for singlecarrier per transponder operation, calculate theEb/No back from C/N (see performance specificinformation) as this value includes the non-lineardegradation.Eb/NoSales Support: DVB-S2 Calculator Training
    23. 23. Newtec Proprietary – External UseInforate• The information rate (in Mbps) is the rate at theinput of the modulator part of the modem (so afterencapsulation by the interface part)Baudrate• The symbolrate of the carrier in Mbaud. In someprograms referred to as noise bandwidthBandwidth• This is the occupied bandwidth of the signal and isthe symbolrate multiplied with the applied roll-off.• BW = SR *(1+α) with α = 0.05 to 0.35INFORATEBAUDRATEBANDWIDTHSales Support: DVB-S2 Calculator Training
    24. 24. Newtec Proprietary – External Use• Efficiency is displayed in• bits/baud (information rate divided by the symbolrate)• bits/Hz (information rate divided by the occupiedbandwidth) taking into account the used roll-off factor.Bits/baudBits/HzEFFICIENCYSales Support: DVB-S2 Calculator Training
    25. 25. Newtec Proprietary – External UsePERFORMANCESPECIFICINFORMATIONSales Support: DVB-S2 Calculator TrainingCsat.pure.car/(No*Rs) [dB] 21.45Csat.pure.car/(No*Alloc.bw) [dB] 20.84Csat.pure.car/(No*Txp) [dB] 20.28C/N [dB] 20.93IBO [dB] 0.50OBO [dB] 0.53C/D [dB] 23.82Non-linear degradation [dB] 1.80Performance specific information
    26. 26. Newtec Proprietary – External Use• This is calculated as Es/No + OBO + non-lineardegradation.• It is a measure for the needed resources in thetransponder in order to close the link.Csat.pure.car/(No*Rs)Sales Support: DVB-S2 Calculator Training
    27. 27. Newtec Proprietary – External Use• Knowing what the available resources in atransponder are will give you an idea on what C/Ncan be achieved in a given link.• A simple way of determining this is to uplink apure carrier at full saturation.• When observing the transponder at that stage, onecan see the carrier power and the noise present inthe transponder.Csat.pure.car/(No*Rs)IntermezzoHOW TODETERMINE THEAVAILABLERESOURCES IN ATRANSPONDERSales Support: DVB-S2 Calculator Training
    28. 28. Newtec Proprietary – External UseCsat.pure.car/(No*Rs)IntermezzoHOW TODETERMINE THEAVAILABLERESOURCES IN ATRANSPONDERSales Support: DVB-S2 Calculator Training• Power of the carrier: Csat.pure.car = - 10 dBm• Noise power density: No = - 107.6 dBm/Hz-10 dBm-107.6 dBm/Hz
    29. 29. Newtec Proprietary – External UseCsat.pure.car/(No*Rs)IntermezzoHOW TODETERMINE THEAVAILABLERESOURCES IN ATRANSPONDERSales Support: DVB-S2 Calculator Training• Density : Csat.pure.car/(Rs) = - 10 – 10 log(30E6) = -84.8 dB/Hz-84.8 dBm/Hz
    30. 30. Newtec Proprietary – External Use• If during the CW measurement the noise floor ofthe transponder is measured, we can now calculatethe achievable C/N.• In this case• Csat.pure.car/(No*Rs) = -84.4 – (-107.6) = 23.2 dB• If the selected MOCOD requires a certain OBOvalue, this will have to be subtracted in order toobtain the achievable C/N.Csat.pure.car/(No*Rs)IntermezzoHOW TODETERMINE THEAVAILABLERESOURCES IN ATRANSPONDERSales Support: DVB-S2 Calculator Training
    31. 31. Newtec Proprietary – External Use• If in our example the carrier is modulated with32APSK 5/6, requiring 3.5 dB OBO, the availableC/N is 23.2 – 3.5 = 19.7 dB.• Taking into account the 16.75 dB C/N (Es/N + non-linear degradation) that is needed, we can see thatthis link will have about 2 dB of link margin.• The amount of additional link margin will of coursebe determined by the availability that is targeted.Csat.pure.car/(No*Rs)IntermezzoHOW TODETERMINE THEAVAILABLERESOURCES IN ATRANSPONDERSales Support: DVB-S2 Calculator Training
    32. 32. Newtec Proprietary – External Use• This is the same value as Csat.pure.car/(No*Rs) butreferenced to the total transponder bandwidth.• It is used to compare usage of a full transponderCsat.pure.car/(No*Txp.BW)Sales Support: DVB-S2 Calculator Training
    33. 33. Newtec Proprietary – External Use• The carrier-to-noise needed at threshold.• This is the sum of the Es/No and the non-lineardegradation in case of full transponder operation.• It is the value that needs to be entered in thelinkbudget program if the non-linear degradation isnot indicated separately.C/NSales Support: DVB-S2 Calculator Training
    34. 34. Newtec Proprietary – External Use• The required input back-off in for optimalperformance• This point is the balance between the twocontradictory requirements:• The need to go as far into saturation to maximize theoutput power but with a result increased distortion• The need to stay away from saturation and operate inthe linear region in order to keep distortion degradationto a minimum but resulting in lower output power.IBOSales Support: DVB-S2 Calculator Training
    35. 35. Newtec Proprietary – External Use• The output back-off in dB as a result of the selectedIBO.• Remark that this is measured with modulatedcarrier so including modulation loss.OBOSales Support: DVB-S2 Calculator Training
    36. 36. Newtec Proprietary – External Use• Carrier-to-distortion ratio as indicated by theNoDE™ tool in Newtec demodulators.• It is the distortion that will be present whenoperating at the optimal IBO/OBO point.• It can be used to determine this optimal operationpoint during line-up.C/DSales Support: DVB-S2 Calculator Training
    37. 37. Newtec Proprietary – External UseOVERHEADSales Support: DVB-S2 Calculator Training
    38. 38. Newtec Proprietary – External Use• This is the raw FEC overhead.• For example 3/4 result in a FEC overhead of 0.750FECEXCLUDINGFRAMINGOVERHEADSales Support: DVB-S2 Calculator Training
    39. 39. Newtec Proprietary – External Use• This is the additional overhead caused by the DVB-S2 framing (baseband framing, physical layerframing, pilot insertion,…)• It is typically around 3%FRAMINGOVERHEADSales Support: DVB-S2 Calculator Training
    40. 40. Newtec Proprietary – External Use• The IP encapsulation overhead as function of:• encapsulation method• label format• type of traffic.ENCAPSU-LATIONOVERHEADSales Support: DVB-S2 Calculator Training
    41. 41. Newtec Proprietary – External Use• This overhead is only applicable when thecomplete TSoIP is transported over the satellite asIP.• It is used to calculate the effective TS rate from theTSoIP at the input of the modem.• In normal transports stream mode (such as on theMDM6100 broadcast modem) the interface willdecapsulate the TS from the TSoIP and onlytransport stream packets. This doesn’t not result inadditional overhead.TSoIPOVERHEADSales Support: DVB-S2 Calculator Training
    42. 42. Newtec Proprietary – External UseRATEINFORMATIONSales Support: DVB-S2 Calculator Training
    43. 43. Newtec Proprietary – External Use• In case of TSoIP that is transported as native IP, thisis the overhead caused by the encapsulation of thetransport stream packets in IP packets.• This encapsulation is not done in the modem buttypically by a MUX.• The value can be used to determine the effectiverate of the transport stream.TRANSPORTSTREAM RATEANDEFFICIENCYSales Support: DVB-S2 Calculator Training
    44. 44. Newtec Proprietary – External Use• The effective rate at the input of the modem.EFFECTIVE IPRATE ANDEFFICIENCYSales Support: DVB-S2 Calculator Training
    45. 45. Newtec Proprietary – External Use• The rate at the input of the modulator part of themodem, so after the interface block that does theencapsulation.• To be used when encapsulation overhead is notedseparately.INFO RATE ANDEFFICIENCYSales Support: DVB-S2 Calculator Training
    46. 46. Newtec Proprietary – External Use• The data rate as if only FEC and modulation would beapplied.• Sometime called the satellite rate.• Example:• QPSK ¾, 10 Mbaud  satellite rate = 10 * 2 * ¾ = 15 MbpsRAW DATARATE ANDEFFICIENCYSales Support: DVB-S2 Calculator Training
    47. 47. Newtec Proprietary – External Use• MODCODs are listed by their required satelliteresources and MODCODs that have lowerefficiency versus their needed resources comparedto the adjoining MODCODs are removed.• The optimal MODCOD for the selectedconfiguration is highlighted.TABLEOVERVIEWSales Support: DVB-S2 Calculator TrainingOptimal modcod 32APSK 3/4ranking Modcod overview Es/No (=C/(N+D) Inforate efficiency C/N OBO Csat.pure.car/(No*Txp)[dB] [bits/Hz] [dB] [dB] [dB]1 32APSK 9/10 16.26 3.11 18.38 4.74 21.652 32APSK 8/9 15.95 3.07 17.90 4.72 21.163 32APSK 5/6 14.61 2.88 16.61 4.05 19.204 32APSK 4/5 14.06 2.76 16.18 3.66 18.375 32APSK 3/4 13.17 2.59 15.31 3.34 17.206 16APSK 8/9 13.16 2.46 15.06 2.55 16.157 16APSK 5/6 11.86 2.30 13.74 2.04 14.318 16APSK 4/5 11.30 2.21 13.15 1.82 13.519 16APSK 3/4 10.48 2.07 12.28 1.61 12.4310 16APSK 2/3 9.23 1.84 10.93 1.24 10.7011 8PSK 3/4 8.20 1.56 8.95 0.69 8.1812 8PSK 2/3 6.84 1.38 7.47 0.61 6.6213 8PSK 3/5 5.88 1.24 6.30 0.62 5.47Available Modcods in optimal ranking
    48. 48. Newtec Proprietary – External Use• The ranking of MODCODs is based on the requiredresources Csat.pure.car/(No*Txp).• The MODCODs are presented in a filtered way.• For example in the case pictured above, it makes nosense to even add the MODCOD for 16APSK 9/10since it would require bigger resources for a lowerefficiency.TABLEOVERVIEWSales Support: DVB-S2 Calculator TrainingRankingOptimal modcod QPSK 2/5ranking Modcod overview Es/No (=C/(N+D) Inforate efficiency C/N OBO Csat.pure.car/(No*Txp)[dB] [bits/Hz] [dB] [dB] [dB]1 32APSK 9/10 16.26 3.11 18.38 4.74 21.652 32APSK 8/9 15.95 3.07 17.90 4.72 21.163 32APSK 5/6 14.61 2.88 16.61 4.05 19.204 32APSK 4/5 14.06 2.76 16.18 3.66 18.375 32APSK 3/4 13.17 2.59 15.31 3.34 17.206 16APSK 8/9 13.16 2.46 15.06 2.55 16.157 16APSK 5/6 11.86 2.30 13.74 2.04 14.318 16APSK 4/5 11.30 2.21 13.15 1.82 13.51Available Modcods in optimal ranking
    49. 49. Newtec Proprietary – External UseEs/No• The required Es/No for the linear channel.C/N• The carrier-to-noise needed at threshold. This is thesum of the Es/No and the non-linear degradation incase of full transponder operation.• It is the value that needs to be entered in thelinkbudget program if the non-linear degradation isnot indicated separately.TABLEOVERVIEWSales Support: DVB-S2 Calculator TrainingEs/NoC/NOptimal modcod QPSK 2/5ranking Modcod overview Es/No (=C/(N+D) Inforate efficiency C/N OBO Csat.pure.car/(No*Txp)[dB] [bits/Hz] [dB] [dB] [dB]1 32APSK 9/10 16.26 3.11 18.38 4.74 21.652 32APSK 8/9 15.95 3.07 17.90 4.72 21.163 32APSK 5/6 14.61 2.88 16.61 4.05 19.204 32APSK 4/5 14.06 2.76 16.18 3.66 18.375 32APSK 3/4 13.17 2.59 15.31 3.34 17.206 16APSK 8/9 13.16 2.46 15.06 2.55 16.157 16APSK 5/6 11.86 2.30 13.74 2.04 14.318 16APSK 4/5 11.30 2.21 13.15 1.82 13.51Available Modcods in optimal ranking
    50. 50. Newtec Proprietary – External Use• The resulting output back-off in dB. Remark thatthis is measured with modulated carrier soincluding modulation loss.TABLEOVERVIEWSales Support: DVB-S2 Calculator TrainingOBOOptimal modcod QPSK 2/5ranking Modcod overview Es/No (=C/(N+D) Inforate efficiency C/N OBO Csat.pure.car/(No*Txp)[dB] [bits/Hz] [dB] [dB] [dB]1 32APSK 9/10 16.26 3.11 18.38 4.74 21.652 32APSK 8/9 15.95 3.07 17.90 4.72 21.163 32APSK 5/6 14.61 2.88 16.61 4.05 19.204 32APSK 4/5 14.06 2.76 16.18 3.66 18.375 32APSK 3/4 13.17 2.59 15.31 3.34 17.206 16APSK 8/9 13.16 2.46 15.06 2.55 16.157 16APSK 5/6 11.86 2.30 13.74 2.04 14.318 16APSK 4/5 11.30 2.21 13.15 1.82 13.51Available Modcods in optimal ranking
    51. 51. Newtec Proprietary – External Use• Csat.pure.car/(No*Txp)• This is calculated as Es/No + OBO + non-lineardegradation.• It is a measure for the needed resources in thetransponder in order to close the link.TABLEOVERVIEWSales Support: DVB-S2 Calculator TrainingCsat.pure.car/(No*Txp)Optimal modcod QPSK 2/5ranking Modcod overview Es/No (=C/(N+D) Inforate efficiency C/N OBO Csat.pure.car/(No*Txp)[dB] [bits/Hz] [dB] [dB] [dB]1 32APSK 9/10 16.26 3.11 18.38 4.74 21.652 32APSK 8/9 15.95 3.07 17.90 4.72 21.163 32APSK 5/6 14.61 2.88 16.61 4.05 19.204 32APSK 4/5 14.06 2.76 16.18 3.66 18.375 32APSK 3/4 13.17 2.59 15.31 3.34 17.206 16APSK 8/9 13.16 2.46 15.06 2.55 16.157 16APSK 5/6 11.86 2.30 13.74 2.04 14.318 16APSK 4/5 11.30 2.21 13.15 1.82 13.51Available Modcods in optimal ranking
    52. 52. Newtec Proprietary – External UseLinear channelTABLEOVERVIEWSales Support: DVB-S2 Calculator Training0.000.501.001.502.002.503.003.504.00-5.00 0.00 5.00 10.00 15.00 20.00Efficiency[bits/baud]Es/No [dB]Es/No versus efficiencyMulti carrier64APSK32APSK16APSK8PSKQPSK
    53. 53. Newtec Proprietary – External Use• A 20 Mbps IP stream MPE encapsulated in DVB-S2(roll-off 20%, 16APSK 5/6 received by an EL470modem• How much space capacity is currently needed?• Using the exact same resources, what is the increasein throughput using DVB-S2E with GSE?• Is there an optimization possible by reducing theroll-off but still using the same PEB?Exercise 1SOMEEXAMPLESSales Support: DVB-S2 Calculator Training
    54. 54. Newtec Proprietary – External UseInput parametersSOMEEXAMPLESSales Support: DVB-S2 Calculator TrainingSystem DVB-S2Demodulator Hardware EL470 IP modemTransponder Multi carrierTransponder spacing [MHz] 40Carrier input mode InforateInforate [Mbps] 20Modcod 16APSK 5/6Roll-off factor 0.2Frame type Normal framesPilots Pilots onIP encapsulator MPELabel No labelTraffic iMixInput data
    55. 55. Newtec Proprietary – External UseEs/No (=C/N) [dB] 12.10C/No [dBHz] 80.03Eb/No [dB] 7.02Info rate [Mbps] 20.000Baudrate [Mbaud] 6.208Bandwidth [MHz] 7.449Efficiency [bits/baud] 3.222[bits/Hz] 2.685Frame length [ms] 2.688Minimum baudrate [Mbaud] 0.256Maximum baudrate [Mbaud] 33.000Output data FER 1E-7Used resourcesSpace capacity neededSOMEEXAMPLESSales Support: DVB-S2 Calculator Training
    56. 56. Newtec Proprietary – External UseSystem S2 ExtentionsDemodulator Hardware MDM6000-DH02-S2Ext DemodTransponder Multi carrierTransponder spacing [MHz] 40Carrier input mode BandwidthBandwidth [MHz] 7.449Modcod 16APSK-L 150/180Roll-off factor 0.05Frame type Normal framesPilots Pilots onIP encapsulator GSELabel No labelTraffic iMixInput dataNew configurationSOMEEXAMPLESSales Support: DVB-S2 Calculator Training
    57. 57. Newtec Proprietary – External UseEs/No (=C/N) [dB] 11.38C/No [dBHz] 79.89Eb/No [dB] 6.30Info rate [Mbps] 22.857Baudrate [Mbaud] 7.094Bandwidth [MHz] 7.449Efficiency [bits/baud] 3.222[bits/Hz] 3.068Frame length [ms] 2.352Minimum baudrate [Mbaud] 1.000Maximum baudrate [Mbaud] 72.000Output data FER 1E-7Used resources are equalor lower in samebandwidthSOMEEXAMPLESSales Support: DVB-S2 Calculator TrainingThroughput increased with 2.8 Mbps
    58. 58. Newtec Proprietary – External Use• A contribution carrier operates in DVB-S at 27.5Mbaud 8PSK 5/6 with RO 25% in a linearized 36MHz transponder.• What is possible using DVB-S2E using the same resources?• What is the gain of predistortion?• Find the optimal point for roll-off versus symbolrate?(you’ll need Csat.pure.car/(No*Txp.BW) for this)Exercise 2SOMEEXAMPLESSales Support: DVB-S2 Calculator Training
    59. 59. Newtec Proprietary – External UseINPUT DATASales Support: DVB-S2 Calculator TrainingSystem DVB-SDemodulator Hardware AZ910 Broadcast demodTransponder Single carrier without predistortionTransponder spacing [MHz] 40Carrier input mode BaudrateBaudrate [Mbaud] 27.5Modcod 8PSK 5/6Roll-off factor 0.25Frame type Normal framesPilots Pilots onIP encapsulator NoneLabel No labelTraffic iMixInput data
    60. 60. Newtec Proprietary – External UseOUTPUT DATASales Support: DVB-S2 Calculator TrainingEs/No (=C/(N+D) [dB] 12.21C/(No+Do) [dBHz] 86.60Eb/No [dB] 8.59Info rate [Mbps] 63.360Baudrate [Mbaud] 27.500Bandwidth [MHz] 34.375Efficiency [bits/baud] 2.304[bits/Hz] 1.843Minimum baudrate [Mbaud] 1.000Maximum baudrate [Mbaud] 45.000Output data FER 1E-7
    61. 61. Newtec Proprietary – External UseRESOURCESSales Support: DVB-S2 Calculator TrainingCsat.pure.car/(No*Rs) [dB] 14.22Csat.pure.car/(No*Alloc.bw) [dB] 13.25Csat.pure.car/(No*Txp) [dB] 12.59C/N [dB] 13.87IBO [dB] 0.50OBO [dB] 0.35C/D [dB] 17.19Non-linear degradation [dB] 1.66Performance specific information
    62. 62. Newtec Proprietary – External UseRESOURCESSales Support: DVB-S2 Calculator TrainingSystem S2 ExtentionsDemodulator Hardware MDM6000-DH02-S2Ext DemodTransponder Single carrier without predistortionTransponder spacing [MHz] 40Carrier input mode BandwidthBandwidth [MHz] 36Modcod 16APSK 135/180Roll-off factor 0.1Frame type Normal framesPilots Pilots onIP encapsulator GSELabel No labelTraffic iMixInput dataNew configuration
    63. 63. Newtec Proprietary – External UseCsat.pure.car/(No*Rs) [dB] 13.80Csat.pure.car/(No*Alloc.bw) [dB] 13.39Csat.pure.car/(No*Txp) [dB] 12.93C/N [dB] 12.19IBO [dB] 5.50OBO [dB] 1.61C/D [dB] 15.07Non-linear degradation [dB] 1.81Performance specific informationRESOURCESSales Support: DVB-S2 Calculator TrainingNew configurationUse about the sameresources
    64. 64. Newtec Proprietary – External Use63.36 Mbps94.79 MbpsRESULTSales Support: DVB-S2 Calculator TrainingEs/No (=C/(N+D) [dB] 10.39C/(No+Do) [dBHz] 85.54Eb/No [dB] 5.77Info rate [Mbps] 94.789Baudrate [Mbaud] 32.727Bandwidth [MHz] 36.000Efficiency [bits/baud] 2.896[bits/Hz] 2.633Frame length [ms] 0.510Minimum baudrate [Mbaud] 1.000Maximum baudrate [Mbaud] 72.000Output data FER 1E-7
    65. 65. Newtec Proprietary – External UseYETANOTHEREXAMPLESales Support: DVB-S2 Calculator TrainingSystem DVB-S2 System S2 ExtentionsDemodulator Hardware EL470 IP modem Demodulator Hardware MDM6000-DH02-S2Ext DemodTransponder Multi carrier Transponder Multi carrierTransponder spacing [MHz] 40 Transponder spacing [MHz] 40Carrier input mode Bandwidth Carrier input mode BandwidthBandwidth [MHz] 10 Bandwidth [MHz] 10Modcod 8PSK 5/6 Modcod 16APSK-L 126/180Roll-off factor 0.2 Roll-off factor 0.05Frame type Normal frames Frame type Normal framesPilots Pilots on Pilots Pilots onIP encapsulator XPE IP encapsulator GSELabel No label Label No labelTraffic iMix Traffic iMixCsat.pure.car/(No*Txp) [dB] Csat.pure.car/(No*Txp) [dB]Es/No [dB] 9.70 Es/No [dB] 9.14C/No [dB] 78.91 C/No [dB] 78.93C/N [dB] C/N [dB]Info rate [Mbps] 20.186 Info rate [Mbps] 25.735Baudrate [Mbaud] 8.333 Baudrate [Mbaud] 9.524Bandwidth [MHz] 10.000 Bandwidth [MHz] 10.000Info rate [%] 27.489Baudrate [%] 14.286Bandwidth [%] 0.000GainInput data configuration A Input data configuration BOutput data FER 1E-7 Output data FER 1E-7Performance specific information Performance specific informationUsing the sameresources, and increase of27% is achieved
    66. 66. Get in touchFOLLOW USTHANK YOUDave SuffysNewtec Sales Support Managerdsu@newtec.eu

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