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GARY CROKE, CALLUM NOON | AVIAT NETWORKS

AVIAT TECHNOLOGY SERIES

MICROWAVE TECHNOLOGY OPTIONS

capacity cost

hybrid or all-ip?

licensed vs. unlicensed?

security and

reliability questions

zero footprint

mpls or carrier ethernet?

all-indoor or split mount?

protection options

Microwave Choices are Easy… Right?

confusing and complicated….

goal: SIMPLIFICATION

not exactly

spectrum availability

OK, LET’S TAKE A LOOK AT THE VARIOUS TYPES OF PRODUCTS (table display)

SO, CHOOSING THE BEST PRODUCT COMES DOWN TO THIS SIMPLE EQUATION:

CAPACITYCAPACITY

RELIABILITYRELIABILITY COSTCOST

EVERYONE KNOWS THAT IF YOU WANT A MISSION CRITICAL RADIO

(BEST when reliability is #1 goal)

ALL-INDOOR

IS BEST

BECAUSE MTTR IS BETTER

0

1

2

3

4

5

6

7

8

9

10

Outdoor RF Indoor RF

Mean TTR

0

5

10

15

20

25

30

35

40

Outdoor RF Indoor RF

Worst Case TTR Repair Time

Travel Time

Spare Retrieval

Average TRR

3.75 Hrs Better

Worst Case TRR

11.75 Hrs Better

System Gain (dB)

All-Indoor Split Mount Improvement with

All-Indoor

QPSK 120 115.75 4.25

16 QAM 113.75 109.5 4.25

64 QAM 105.75 101.5 4.25

256 QAM 98.25 94 4.25

6GHz, 30MHz channel

AND SYSTEM GAIN IS HIGHER

HOWEVER, THERE ARE THREE COMMON CONCERNS ABOUT ALL-INDOOR #1. long waveguide (WG) runs

reduce overall system gain

LET’S INVESTIGATE THAT …

0%

5%

10%

15%

20%

25%

30%

35%

<50 50-100 100-150 150-200 200-250 250-300 300-350 >350

Perc

en

tag

e o

f To

tal L

inks

WG Run Length (ft)

WG Run Length vs Percentage of Links

AVERAGE WAVEGUIDE RUN IS 177 FT

SO, ALL-INDOOR IS 1.5dB BETTER ON AVERAGE LINK

0%

5%

10%

15%

20%

25%

<0 0-0.5 0.5-1.0 1.0-1.5 1.5-2.0 2.0-2.5 2.5-3.0 3.0-3.5 3.5-4.0

Perc

en

tag

e o

f L

inks

System Gain Improvement (dB)

SG Improvement with All-Indoor (vs Split Mount)

AND HAS HIGHER GAIN FOR - 90% OF ALL LINKS

ANOTHER CONCERN ABOUT ALL-INDOOR #2. it’s too expensive!!

$0

$10,000

$20,000

$30,000

$40,000

$50,000

$60,000

$70,000

All-Indoor Split Mount All-Outdoor

INITIAL COST (INSTALLED)

$12,900

17%

0%

4%

4%

4%

6%

5%

5%

55%

New Tower Build/Lease

38%

1%

9% 8%

8%

13%

12%

11%

Existing Tower

HOWEVER, IF WE LOOK AT TCO

Initial

CAPEX

Ongoing

CAPEX

MW Equipment Price

Spares

Upgrades and

expansion

Initial

OPEX

Design

Site development

Installation and

commissioning

Yearly

OPEX

Field corrective

maintenance

Repair and return

Tower lease

5 Year TCO

THUS HIGHER POWER RADIOS REDUCE COSTS

0 5,000 10,000 15,000 20,000 25,000 30,000

10

8

6

4

3

2.5

TCO Reduction

An

ten

na

Dia

me

ter

(ft)

Impact of Improved System Gain on TCO (5 yr)

3dB

4dB

$12,900

WORTH PAYING MORE FOR HIGHER POWER

PLUS ALL-INDOOR IS CHEAPER TO

UPGRADE…

Let’s investigate that…

ALL-INDOOR

WA

VE

GU

IDE

$$$ $$$

$$

$$

SPLIT-MOUNT

$$

$$

Co

ax

1+0 1+0

ALL-INDOOR

WA

VE

GU

IDE

$$$ $$$

$$

$$

SPLIT-MOUNT

$$$ $$$

$$

$$

Co

ax

2+0 1+0

ALL-INDOOR

WA

VE

GU

IDE

$$$ $$$

SPLIT-MOUNT

$$$ $$$

$$

$$

$$

$$

$$$$

$$

$$$$

$$

2+0 2+0

IMPACT OF CAPACITY GROWTH ON TCO

$0

$20,000

$40,000

$60,000

$80,000

$100,000

$120,000

100Mbps 200Mbps 300Mbps 400Mbps 500Mbps 600Mbps

All-Indoor

Split Mount

All-Outdoor

OH! AND ONE MORE CONCERN ABOUT ALL-INDOOR

3. it doesn’t work in higher bands

(less capacity on short hops)

- true… then you may want outdoor rf…

- lets take a look at the options

ZERO FOOTPRINT RADIOS

Make Sense When:

No “nodes” or rings (multiple ports required)

No XPIC

No protection

No TDM

No advanced QoS

No space for anything indoors

Ethernet

otherwise you need external switch… and then you have a…

SPLIT MOUNT RADIO… 2 OPTIONS:

Coax Ethernet PoE Injector

(external)

ROUTER

CHOICE COMES DOWN TO POWER, NETWORK MANAGEMENT OPTIONS, AND NATIVE TDM SUPPORT

almost always makes sense to use a split mount radio

EXAMPLE: RING SITE WITH 1 SPUR LINK

SPLIT MOUNT: COAX

Switch

PoE

Injector (external)

PoE

Injector (external)

PoE

Injector (external)

Outdoor

Radio (ODR) Outdoor

Radio (ODR)

Outdoor

Radio (ODR)

Outdoor

Radio (ODU) Outdoor

Radio (ODU)

Outdoor

Radio (ODR)

SPLIT MOUNT: ETHERNET

INU

ROUTER

COST AND BOM TELL THE STORY

SPLIT MOUNT COAX

SPLIT MOUNT ETHERNET

Quantity Quantity

Total # of outdoor elements 3 3

Total # of indoor elements 1 4

Total # of cables 3 6

Total # of network management systems

1

2

optimized for lowest cost of ownership

inefficient for microwave networking

not optimized for lowest cost of ownership

OPERATIONALLY COMPLEX

NON INTEGRATED NODAL SOLUTION

MORE POINTSS OF FAILURE

SPLIT ELEMENT MANAGEMENT

LOWER RF PERFORMANCE

FULLY INTEGRATED NODAL SOLUTION

OPERATIONALLY SIMPLE

LESS POINTS OF FAILURE

FULLY INTEGRATED MANAGEMENT

HIGHER PERFORMANCE RF

optimized for microwave networking

75% less

50% less

50% less

SPLIT MOUNT W/ ROUTER AS INDOOR UNIT

EVOLUTION WILL HAPPEN…

ONLY QUESTION IS WHEN…

Ethernet PoE

Injector (external)

ROUTER

Pros Cons

Eliminate external router

(lower cost)

Native TDM transport not

possible

“MW aware” routing “MW aware” routing

Highly nodal platforms

possible (lower cost)

Organizational boundaries /

ownership (IT vs Transport)

questions

mission critical applications (any distance)

6-11ghz high capacity

6-11ghz low capacity

18GHz+ with indoor space available

indoor equipment not possible (small cells)

ALL-INDOOR SPLIT-MOUNT ZERO FOOTPRINT

THANK YOU

QUESTIONS?