long haul multi-gigabit microwave: a new approach
DESCRIPTION
As the data capacity demand on mobile phone and other wireless operator networks booms, their telecom backbones, or backhaul infrastructures, have struggled to keep pace. To get high volumes of data from coast to coast, operators have in more recent times relied on fiber optic technology for their voice and data traffic. However, for these long-haul operations, fiber lacks practicality, flexibility, cost effectiveness, security and quick time-to-market. Increasingly, operators are turning to the original long-haul telco solution to meet all these needs: microwave radio.TRANSCRIPT
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LONG HAUL MULTI-
GIGABIT MICROWAVE:
A NEW APPROACH
An Advanced Technology Webinar
From Aviat Networks
14 August 2013
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AVIAT NETWORKS
WHAT WE WILL COVER TODAY
• Typical Trunking Microwave characteristics
• Split-Mount Trunking Microwave Solution
• Reducing Trunking Total Cost of Ownership
• Conclusions and Q+A
• The drivers for Trunking Microwave applications
• The Impact of Tower Outsourcing on TCO
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TRAFFIC EXPLOSION
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Commercial
LTE Network
Launches
(cumulative)
Source: GSA
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How to meet expanding capacity demands?
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AVIAT NETWORKS
In many cases fiber is
just not an option:
Too expensive
Not practical
Too vulnerable
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AVIAT NETWORKS
Long Haul, or
Trunking Microwave
has formed the
backbone of
networks around the
world.
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AVIAT NETWORKS
HIGH CAPACITY, GUARANTEED
• Multi-channel microwave systems are
key for providing guaranteed high
capacity links for long-haul and
aggregation applications
• New techniques can help, but don’t fit
the application:
• Higher modulations >1KQAM
• MIMO
• Ethernet Optimization, eg: Header
Compression, etc
• Asymmetric links
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ASSURED CAPACITY EXPANSION
REDUCE SITE COMPLEXITY SIMPLIFY
DRAMATICALLY LOWER TCO
SAFEGUARD
SAVE
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AVIAT NETWORKS
Antenna
Waveguide
Indoor Unit
ALL-INDOOR TRUNK RADIOS
• All-indoor trunking radios were originally
designed for N+1 SDH applications
• Supported features generally lag the rest
of the microwave market by >12 months
• Consist of a full equipment rack, with
additional clearance needed for
waveguide connections
• Connected to antenna(s) by semi-rigid,
elliptical waveguide – requires
pressurization, dehydration and regular
maintenance
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AVIAT NETWORKS
4 Gbit/s
2 Gbit/s
3 Gbit/s
1 Gbit/s
40 GHz 30 GHz 20 GHz 10 GHz
All-Indoor
Trunking
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AVIAT NETWORKS
4 Gbit/s
2 Gbit/s
3 Gbit/s
1 Gbit/s
40 GHz 30 GHz 20 GHz 10 GHz
Most effective for high-
capacity applications
between 2 and 4 Gbit/s
All-Indoor
Trunking
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PROBLEM IS,
TRUNKING RADIOS ARE BIG…
REALLY BIG.
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SO YOU’LL
NEEDS ONE
OF THESE…
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AVIAT NETWORKS
ALONG WITH
A LARGE
GENERATOR
(OR TWO)…
AND A LOT
OF FUEL
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AVIAT NETWORKS
AND ALSO
ONE OR
MORE OF
THESE
BEASTS…
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AVIAT NETWORKS
SPLIT-MOUNT ACCESS RADIOS
• Split-mount access radios can be used
for high capacity applications
• Usually much more cost effective than
indoor trunking radios
• Compact indoor unit, suitable for
installation in outdoor cabinet
• Simple coax IDU-ODU connection
• However, combining multiple channels
using couplers introduces significant
path losses
Antenna
Coupler
ODU
Coax
Indoor Unit
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AVIAT NETWORKS
4 Gbit/s
2 Gbit/s
3 Gbit/s
1 Gbit/s
40 GHz 30 GHz 20 GHz 10 GHz
Split-Mount
Access
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AVIAT NETWORKS
4 Gbit/s
2 Gbit/s
3 Gbit/s
1 Gbit/s
40 GHz 30 GHz 20 GHz 10 GHz
Split-Mount
Access
Most effective
for access
applications
<1Gbit/s
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AVIAT NETWORKS
Antenna
Waveguide
Coax
Indoor Unit
OBU
ODU
SPLIT-MOUNT TRUNKING RADIOS
• Combines the best of both worlds
• Environmentally sealed OBU, containing
channel-specific filters and branching
• Low-loss combining of 4x ODUs onto a
single- or dual-polarized antenna
• Mounted close to antenna – no
waveguide loss
• No pressurization needed
• ODUs easily removed and replaced for
maintenance
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AVIAT NETWORKS
4 Gbit/s
2 Gbit/s
3 Gbit/s
1 Gbit/s
40 GHz 30 GHz 20 GHz 10 GHz
Combining the best
features of indoor
trunking and split-
mount access Split-
Mount
Trunking
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SO THAT THIS…
CAN EASILY FIT INTO ONE
OF THESE…
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OR EVEN THIS…
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AVIAT NETWORKS
ANOTHER STEP
ALONG THE
PATH TO
SUSTAINABILITY
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AVIAT NETWORKS
SYSTEM GAIN COMPARISON
Split-Mount
Trunking
All-Indoor
Trunking
Split-Mount
Access
Tx Power Output dBm 29.5 31 28
Rx Threshold (10-6 BER) dBm -71.5 -67 -70
Branching/Coupler Loss dB 7.5 6.5 14
Antenna connection loss dB 1 6 1
System Gain dB 92.5 85.5 (-7dB) 83 (-9.5dB)
7 dB Advantage = one full antenna size per link
* Based upon system configuration for 7GHz / 28MHz / 256QAM / 4+0 ACCP, No SD
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AVIAT NETWORKS
PURCHASE PRICE
Installation
Maintenance
Training
Upgrades
Spectrum fees
Power usage
Tower costs
Air Conditioning costs
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AVIAT NETWORKS
TCO and other
OPEX drivers rated
highest, above
purchase price
1 = most important
VENDOR SELECTION CRITERIA
Microwave Strategies and Vendor Leadership:
Global Service Provider Survey, July 29, 2013
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AVIAT NETWORKS
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AVIAT NETWORKS
INFRASTRUCTURE
OUTSOURCING/SHARING
• Network outsourcing or
sharing becoming common for
operators seeking to reduce
costs and focus operations
• Active - spectrum, switches,
antenna, etc
• Passive - tower, shelter,
power supply, batteries,
aircon, etc)
• Backhaul – leased capacity
(over fiber and/or microwave)
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AVIAT NETWORKS
TCO COSTS - EXAMPLE CAPEX (Initial)
Microwave Equipment Price
Spares
CAPEX (Recurring)
S/W Upgrades for Capacity Expansion
OPEX (Initial)
LOS and Site Survey
Site Development and Preparation
Design (engineering services)
Installation & commissioning
Field corrective maintenance
Repair and return (MLA fees)
Spectrum License (Initial Free)
OPEX (Recurring)
Spectrum License Annual Fee
Tower lease (x' antenna)
Power, Cooling and Other Maintenance
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AVIAT NETWORKS
TCO SAVINGS BY REDUCING ANTENNA SIZE
0 10,000 20,000 30,000 40,000
10
8
6
4
3O
rig
inal A
nte
nn
a D
iam
ete
r, f
t
5 Year TCO Saving, USD
The larger the antenna, the bigger TCO Savings
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AVIAT NETWORKS
MICROWAVE TCO - 5 LINKS, INCLUDING TOWER
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AVIAT NETWORKS
MICROWAVE TCO - 1 LINK, TOWER EXCLUDED
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AVIAT NETWORKS
MICROWAVE TCO - 1 LINK, WITH LEASED TOWER
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AVIAT NETWORKS
MICROWAVE TCO - 1 LINK, WITH LEASED TOWER
CAPEX IS ONLY A
MINOR CONTRIBUTOR
FOCUS ON OPEX IS
MUCH MORE
IMPORTANT!
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AVIAT NETWORKS
COMPARATIVE TCO ANALYSIS
CAPEX
OPEX
TCO
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AVIAT NETWORKS
• Major drivers:
• Antennas size and number
• Site footprint (container versus a
cabinet)
• Power consumption
• Air conditioning
COMPARATIVE TCO ANALYSIS
Up to 30% TCO Saving with Split-Mount Trunking
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REDUCE SITE COMPLEXITY SIMPLIFY
• Site cabinets, instead of shelters
• Reduced site power needs
• Smaller antennas
• Reduced tower loading
• No waveguide or pressurization
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DRAMATICALLY LOWER TCO SAVE
• No need for expensive shelters
• Lower equipment CAPEX
• Higher system performance
• Site running costs slashed
• Smaller antennas = lower tower lease
charges
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ASSURED CAPACITY EXPANSION SAFEGUARD
• Simple capacity upgrades
• Guaranteed capacity
• Take advantage of the latest radio and
Carrier Ethernet features
• Common platform with access radio
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AVIAT NETWORKS
• New Split-Mount Trunking Solution
• Outdoor Branching Unit (OBU)
• ODU600T high performance ODUs
• High system gain
• Simple sparing (one ODU per band)
• Now shipping in frequency bands from
5 to 11 GHz worldwide
AVIAT STR 600
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AVIAT NETWORKS
IN CONCLUSION
• Split Mount Trunking combines the best of both worlds
• Ultra-high capacity links with the convenience of split-mount
• Enables dramatically lower costs
• Optimize assets in preparation for tower outsourcing
• Guaranteed capacity without compromise
SIMPLIFY, SAVE, SAFEGUARD
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AVIAT NETWORKS
Questions?
Thankyou…
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W W W . A V I A T N E T W O R K S . C O M