NEW Ka band HTS Solutions for Offshore CommunicationsTwo_091… · Ka-band does present added...

April 2014 Waldo Russo GVF Oil & Gas Communications Brazil 2014

NEW Ka band HTS Solutions

for Offshore Communications

The increasing necessity for Bandwidth from offshore

communications and the promises of Ka band, spot

beams and frequency reuse

CHANGING COMMUNICATIONS

NEEDS IN OFFSHORE O&G

GVF Oil & Gas Communications Brazil 2014 Waldo Russo

Oil & Gas Segment

• The addressable market is forecasted

to grow from 2.3 Gbps in 2013 to

above 40Gbps in 2025

• Strong Drivers:

• Video conference and control;

• Seismic Survey ships providing

data collection to supercomputers

in data centers.

• Telemedicine


CHANGING TECHNOLOGIES

GVF Oil & Gas Communications Brazil 2014 GVF Oil & Gas Communications Brazil 2014 Waldo Russo

Tradicional Options for ofshore

connection


Communication Link Summary

Type Primary Advantage Primary Disadvantage Primary Choice

Microwave Radio High capacity, low cost

equipment

Limited to line of sight

links

Shallow water platforms

within approximately 30

Km from a shore station

Troposcatter Radio High capacity, can reach

long distances offshore

Equipment cost

compared to microwave

and VSAT

Any offshore platform

from 30 Km to

approximately 250 Km

VSAT Global reach Recurring transponder

lease costs

Low rate, less than 2

Mb/s, connectivity

between offshore and

onshore sites

geographically remote

from the oil field.

Optical fiber Highest capacity

Installation costs,

recurring costs for

standby restoral

services

Used for large fields

such as Campus Bay,

North Sea and Gulf of

Mexico for implementing

a large network of

multiple platforms.


HTS concept

•High Throughput Satellites offer many times the throughput of

the classic FSS satellites for the same amount of allocated

orbital spectrum. The definition is not precise, but generally

everything above 2-3 Gigabits/second is considered to be an

HTS satellite. Today, the highest performing HTS satellites can

carry well in excess of 100 Gigabits/second.

• Increase in capacity is a result of high-level frequency re-use

and spot beam technology enabling multiple narrowly focused

beam, in a configuration similar to cellular systems;

•Usually HTS uses Ka band (sometimes Ku band). In the future,

other bands for the feeder link shall be imposed, e.g., Q and V.


How the “HT” is achieved

A satellite’s total throughput, irrespective of frequency band being

used, is largely determined by the following factors:

• Frequency Re-Use (Spectrum Efficiency)

• Size of Spot Beams (Coverage)

• Amount of Spectrum Available (Bandwidth Regulated)

•Trade-off: Noise Temperature vs Spot Interference

More user with consumer

grade quality

Fewer user with carrier grade quality


Amount of Spectrum Available: Ka Band

•Band registered by ANATEL at ITU:

– Up link: 17,7 to 20,2 GHz

– Down link: 27,0 to 30,0 GHz

(Includes K and Ka Bands)


Multi-beams and Frequency Reuse

Multi-beam allows increasing the aggregate overall satellite BW through frequency reuse

o Frequency reuse pattern depends on

o Target Coverage;

o User Locations;

o Relative target traffic per area

o Number of colors in the frequency reuse is mission specific

o More colors, less inference, more complex satellites

o Number of required colors is also linked to coverage topology

o Typical Frequency reuse schemes

o Divide frequency band by 4 => 4 colors

o Cover the service area with a multiple beams assigning one color per beam.

o Each beam has ¼ of the spectrum available. Frequency reuse pattern is Number of beams / 4

The way to increase frequency resource seems unlimited by just

increasing the number of beams, but it has a practical limit due to

satellite antenna limitations in size, pointing accuracy

and inter-beam isolation.


Frequency Reuse Architecture

FONTE: SES – BROADCAST DAY 2012


Typical Architecture of an HTS System

• User Spot beams: between 10 to 120

•One gateway serves several Spot beams (4 to

16)

•Gateway-to-user link: – TDM carrier (DVB-S2 in most cases)

– High rate carrier (30 to 200 MSps)

•User-to-gateway link: –MF/TDMA carriers (typ. DVB-RCS or S-Docsis, other solutions possible)

–Low to medium rate carriers (128 kSps to 10 MSps)


The Ka Band Future

Spot Beam

COMSYS – Digital Ship’12

• There is more Ka-Band spectrum

available than Ku band

• Is is increasingly hard to find new

orbital positions for Ku band satellites

• Ka band potentially allowas satellites

to be spaced closer together


HTS is not necessarily ka band

Source: http://www.newtec.eu/article/article/the-future-of-high-throughput-satellites-for-service-providers


Frequency Selection

Will depend on:

• Desired Throughput

• Availability

• Atmospheric Conditions


Atmosferic Atenuation Efect Amplified

•Ka Band is more sensitive to atmosphere humidity and rain than Ku

band, which in turn will be more sensitive than C band.

•Greater Eirp and G/T help to increase rain margin.

• Mitigation technics

adopted : UPC, ALC, ACM


Mitigation Technics: ACM

•Adaptive Coding and Modulation (ACM) on DVB-S2

• Em Condições de Céu Claro opera na máxima velocidade

• Durante condições de chuva o sistema reduz temporariamente a velocidade (usando o mecanismo de

ACM) evitando a interrupção até que a condição fique muito severa.

• A modulação e o Código são ajustados dinamicamente, para cada ponto de recepção (ou conjuntos de

pontos). Isto é feito pacote a pacote de depende de uma informação do ponto remoto da condição da

recepção.


Evolution of Ka Technology


NEW GEO SATELLITE SOLUTIONS

•Inmarsat Global Express

– New technology, driving us all further

• Global Ka has not been done before

• Rain fade will need to be dealt with

• L-band backup as part of the package…

– Commercial model will be different….

– Promising high data rates…

•Intelsat Epic

– High throughput based on Ku

– Backed-up by C, “normal” Ku and also Ka

– Based on proven technology

•Regional Ka and other frequency combinations

– Offering choice, flexibility & the service level required

– Enable technology adoption when ready

ASTRIUM– Digital Ship’12


INTELSAT EpicNG concept

• Combines Intelsat’s spectral rights in the C-, Ku- and Ka-

bands with high throughput technology

• For each satellite, four to five times more capacity than

Intelsat’s traditional satellites; anticipated throughput of 25-60

Gbps per satellite;

• Projected in-service date in 2015 and 2016;

• Open architecture, backward compatible, combination spot

and broadcast beams;

• Customers will define network topologies and service

characteristics, enabling the successful delivery of customized

services to their end-users


Intelsat epicng

coverage

The Intelsat EpicNG platform will enable throughput in the range of 25-60 Gbps, about 10 times

that of traditional satellites.

Maritime users in a beam can experience downlink speeds of up to 290 Mbps, and uplink

speeds up to 220 Mbps.


INMARSAT GLOBAL XPRESS

Global Xpress will deliver seamless

global coverage and mobile

broadband with downlink speeds

up to 50Mbps, and up to 5Mbps

over the uplink, from to customer

terminals from 20cm-60cm in size

•Global Xpress first satellite – Inmarsat-5 F1 –

successfully took off from the Baikonur

Cosmodrome on 8 December 2013.


GX System Architecture


O3b: The MEO satellite solution


End-of-Pass - Before Handover

Rising Satellite Setting Satellite

O3b

Gateway

Customer Terminal

Mod Coder

Demod Decoder

Demod Decoder

Mod Coder

Demod Decoder

Demod Decoder


End-of-Pass - During Handover


O3b

Gateway

Customer Terminal

Mod Coder

Demod Decoder

Demod Decoder

Mod Coder

Demod Decoder

Demod Decoder


During Handover


O3b

Gateway

Customer Terminal

Mod Coder

Demod Decoder

Demod Decoder

Mod Coder

Demod Decoder

Demod Decoder


End-of-Pass - After Handover

28


O3b

Gateway

Customer Terminal

Mod Coder

Demod Decoder

Demod Decoder

Mod Coder

Demod Decoder

Demod Decoder


O3b Benefits at a Glance


O3b Energy Coverage


Comparing the satellite options

Ka

C, Ku

Hub

C, Ku, Ka

GEO

Satellite


O3b service to 2.4m antenna: Amazon Beam


First in Brasil- Amazonas 3


VIASAT BRASIL – Ka Band Coverage

Low cost high throughput via satellite up to 8Mb.

3 spot beams at Amazonas 3

2 Teleports (Gateways), one in LA and one in USA

3 Gbps total capacity


List of High Throughput Satellites

• Anik F2 (July 2004)

• Thaicom 4 (August 2005)

• Spaceway-3 (August 2007)

• WINDS (February 2008)

• KA-SAT (December 2010)

• Yahsat Y1A (April 2011)

• ViaSat-1 (October 2011)

• Yahsat Y1B (April 2012)

• Yahsat Y1B (April 2012)

• HYLAS 2 (July 2012)

• EchoStar XVII (July 2012)

• Astra 2E (July 2013)

•O3b satellite constellation (June 2013) - Ka

•Inmarsat Global Xpres (2014) - Ka

•Intelsat Epic (2015) C, Ku and Ka

•Eutelsat E3b (2015) Ka

•SGDC (2016) X and Ka

•Amazonas 4B (2016) Ka

•Star On D1 (2016) C, Ku and Ka


Dedicated (Closed) or Open Systems


What HTS technology to choose?

•It will depend on basic Technical & Bussiness

Considerations:

–End-user applications;

–Geographic location of services to be provided

–Network performance/cost

–Availability of back-up capacity

–Current investments in gateway, terminals, systems and

training

–Available frequency rights.


FINAL CONSIDERATIONS


What to Expect in the Near Term

Key points:

• Flexible and intelligent payloads as key technology topics;

o multi-spot beam satellites;

o multi-application architectures;

o Steerable beams;

o Channelized technology

• Ka-band and HTS explosion;

• Satellite interference becomes more important than ever in a multibeam

world.

• Bandwidth efficiency and standards: the move to Shannon limit;

• Verticals shaping satellite architecture and technologies;

• But with a multiservice approach to mitigate risk.

Staggering projections for the next 10 years:

1.5 – 1.7 Tbps of capability being put into the sky by HTS Satellites.


SUMMARY

•Ka-band does present added challenges related to rain fade.

•Through careful system design, Ka-band satellites are capable of

delivering service availability that matches current Ku-band satellites. This

is achieved using satellite ALC, antenna site diversity and ACM;

•Overall throughput of a satellite system is dependent mainly on three

factors: available spectrum, spot beam size and frequency re-use. These

factors apply equally to Ku-band and Ka-band, and suggest that spot-

beam satellites will play an increasingly important role in the future

because they have the potential to significantly reduce the cost per bit

delivered over a satellite link.

•With more spectrum available for Ka-band than for Ku-band, the highest

overall satellite throughput is realized using Ka-band.


NEW Ka band HTS Solutions for Offshore CommunicationsTwo_091… · Ka-band does present added...

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