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.
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.
www.newtec.eu
TRUNKING
Application Note Trunking
The Newtec FlexACM® implementation doubles
the data throughput in trunking, backbone and mobile networks
over satellite at optimal service availability.
Rev.5 09/2016
Efficiency is at the core of Newtec technology in trunking and
backbone networks, with record-breaking speeds of up to 506
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 Newtec Hub6000 hubs and MDM6000 modems support
medium to high rate data communication (1 Mbps up to 425
Mbps) over satellite based on DVB-S2 and DVB-S2X. Newtec
equipment embeds the latest innovative technologies to fully
optimize trunking networks over satellite. Moreover, no extra
or new ground infrastructure (antenna or amplifier) needs to be
acquired to enable higher efficiencies.
Next to hubs and modems, Newtec also provides peripheral
equipment such as redundancy switches and frequency
converters to provide the trunking and backbone networks with
extra stability and reliability.
Newtec 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-Channel-
per-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.
Newtec 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
technologies are FlexACM, Cross-Layer-Optimization, Clean
Channel Technology®, Equalink® 3, Automatic Uplink Power
Control (AUPC), Bandwidth Cancellation and Wideband up to
133 Mbaud.
End-to-End Efficiency for Trunking Networks
Application Note Trunking
TX: DVB-S2/ DVB-S2X
RX: DVB-S2/ DVB-S2X
72 MHz 72 MHz
Figure 1: Point-to-point network and point-to-multipoint network
SITE 1 SITE 2 SITE 3 MOBILE SITE 1
NEWTEC MODEM
NEWTEC MODEM
NEWTEC MODEM
NEWTEC MODEM
DVB-S2 or DVB-S2X
DVB-S2 or DVB-S2X
140 MHz 72 MHz
RXTX
NEWTEC MODEM
NEWTEC MODEM
SITE 1 SITE 1SITE 2
INTERNET BACKBONE OR MOBILE CORE
INTERNET BACKBONE OR MOBILE CORE
LOCAL INTERNET/NETWORK OR MOBILE BASE STATION
NEWTECHUB
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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
Newtec 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 on-
the-fly depending on the bandwidth
availability through Newtec Cross-
Layer-Optimization technology.
Optimal Service Availability
Time
Adaptive Coding & Modulation
Legacy bandwidth
Noise & Distortion ( NoDE)
Variation ( ThiMM)
Optimal bandwidth (Zero margin)
(ACM)
Data,
video,
voice
Shap
ing
, Qo
S, p
rio
riti
es
Ban
dw
idth
man
agem
ent
Acc
eler
atio
n &
co
mp
ress
ion
Video
File-share
Sensor
Voice
Video
File-share
SensorVoice
Continuous three-layer feedback
Figure 2: FlexACM and Cross-Layer-Optimization protect satellite links against fading effects
Application Note Trunking
SITE 1 SITE 2
KU-,KA-BAND, X-BAND, HTS
INCLINED ORBIT
FlexACM optimizes the
throughput for fading sensitive
satellites (X-, Ku-, Ka-band)
but also for Inclined Orbit
Satellites.
3
Newtec 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 Trunking
point-to-multipoint network to their preferred
business model.
Newtec 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 70% gains compared to Variable Modulation and
Coding (VCM) networks.
Committed Information Rates in Adaptive Environments
Customer quote: “Newtec turns Ku-band into C-band.”
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)
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
Figure 3: Different flavors in FlexACM solution adaptable to the business situation of the service provider
Application Note Trunking
REMOTESITE 1
REMOTESITE 2
REMOTESITE 3
REMOTESITE 4
24
18
12
6
0
24
18
12
6
0
24
18
12
6
0
24
18
12
6
0
Bitrate (Mbps)
140
120
100
80
60
40
20
0
Clear Sky (Maximum Channel Capacity)
Rain fade
Es/No (dB)
Es/No (dB)
Es/No (dB)
Es/No (dB)
8PSK 5/6
Bitrate (Mbps)
140
120
100
80
60
40
20
0
Clear Sky (Maximum Channel Capacity)
Rain fade
Bitrate (Mbps)
140
120
100
80
60
40
20
0
Clear Sky (Maximum Channel Capacity)
Bu er (Margin) against Fading
CIR
CIR
CIR
CIR
32APSK 9/10
32APSK 9/10
32APSK 9/10
FlexACM Shared Rate FlexACM Independent Rate FlexACM Fixed Rate
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The built-in bandwidth canceller completely operates in the
digital domain providing unsurpassed performance with the
lowest possible residual cancellation noise resulting in the
highest spectral efficiency. Non-Linear Post-Compensation
(NLPC) performs real-time analysis of the complete received
spectrum and reduces intermodulation interference that affects
the demodulated carrier. Fractional licensing of the bandwidth
cancellation option allows for cost-effective redundant setups.
A very granular licensing scheme
provides a cost-effective solution for
any application ranging from a low
rate 2 Mbps circuit up to very high
rate trunks allowing a pay-as-you-grow
model.
Built-in Bandwidth Cancellation for Any Circuit
A very granular licensing scheme allows for a cost-effective solution
for low rate circuits up to
high rate trunks.
Application Note Trunking
5
Application Note Trunking
Figure 4: Efficiency technologies Bandwidth Cancellation and Equalink 3 to further optimize the satellite link
Bandwidth Cancellation
• Cancellation performed fully in the
digital domain
• Built-in bandwidth cancellation
up-to 72 Mbaud
• Bandwidth gain up to 33%
• Flexible network scenarios (SCPC,
MCPC, Inclined Orbit Satellites)
• Superior Cancellation Performance
• Intelligent uplink power control
• Non-linear post compensation for
intermod removal
• Best efficiency with FlexACM
Equalink 3
• Pre-distortion to compensate for the
effects of imperfections in the filters
and amplifiers of the satellite
• Bandwidth gain up to 10% (or 2 dB)
• Support linear & non-linear links
• Supports 8PSK up to 256APSK
• Requires Saturated Transponders
MDM6000 SATELLITE MODEM MDM6000 SATELLITE MODEM
BANDWIDTHCANCELLATION
Before BWC
After BWC
RTFW
UPLINK REMOTE
INTERNET /PRIVATENETWORK
INTERNET /PRIVATENETWORK
FW RT
KU-,KA-BAND, X-BAND, HTS
INCLINED ORBIT
MDM6000 SATELLITE MODEM
MEASURE ES/NO
ANALYZEAUTO- CORRECT
PRE-DISTORTION
LARGER FOOTPRINTBETTER QOS
MORE DATAHIGHER MODCOD
Equalink 3+10%
UPLINK
RECEIVING SITE INSIDE FOOTPRINT
MONITORING DEMOD
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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
changing market conditions and still remain profitable.
Newtec’s HUB6000 and EL501 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
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
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.
Flexible Business Models
Figure 5: The Newtec HUB6000 and EL501 Satellite Hub allow for flexible business models
IP/ETHERNET
SITE 1 SITE 2 SITE 3
FlexACM
SITE 1CIR: 19 MBPSPIR: 25 MBPS
SITE 3CIR: 25 MBPSPIR: 29 MBPS
SITE 2CIR: 19 MBPSPIR: 25 MBPS
INTERNET ACCESS, SLA 99,8 CIR: 10 MBPSPIR: 15 MBPS
INTERNET ACCESS, SLA 99,85 CIR: 30 MBPSPIR: 33 MBPS
UDP TRAFFIC, SLA 99,85 CIR: 7 MBPSPIR: 8 MBPS
VOIP TRAFFIC, SLA 99,95 CIR: 2 MBPS
VOIP TRAFFIC, SLA 99,95 CIR: 2 MBPS
TRUNKINGUPLINK
INTERNET /PRIVATENETWORK
NEWTEC HUB WITH CROSS-LAYER-OPT.
The Newtec HUB6000 allows the
service provider to rapidly and flexibly
adapt his network to changing
business conditions.
Application Note Trunking
7
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China
NewtecAsia-Pacific
NewtecMENA
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Europe North America South America Asia-Pacific China MENA
Tel: +32 3 780 65 00 Tel: +1 203 323-0042 Tel: +55 11 2092 6220 Tel: +65 6777 22 08 Tel: +86 10-823 18 730 Tel: +971 4 443 60 58
Fax: +32 3 780 65 49 Fax: +1 203 323-8406 Fax: +55 11 2093 3756 Fax: +65 6777 08 87 Fax: +86 10-823 18 731 Fax: +971 4 368 67 68
SHAPING THE FUTURE OF SATELLITE COMMUNICATIONS
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Visit our website: www.newtec.eu
Send a mail to: [email protected]
Contact us: Newtec Cy N.V.Laarstraat 5B-9100 Sint-NiklaasBelgiumTel: +32 (0)3 780 65 00 Fax: +32 (0)3 780 65 49
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