High Capacity Broadband Wireless Connecting the IP/Ethernet/MPLS network of the future

Benefits of 60 & 74/84 GHz for RF Backup60 GHz and 70/80 GHz for RF backup:

FSO is unlicensed, yet has unequaled interference-free transmission characteristics with fiber-like link quality.

This permits immediate rollout and revenues. Ad-hoc network growth without approvals, no need for frequency

planning, or site coordination.

RF backup protection - ensures link integrity in heavy fog

60, 70/80 GHz has bandwidth to support these very high datarates EHF frequencies: Avoids EMI from other terrestrial RF transmissions Narrow RF beamwidths mitigate interference issues (used as backup) FSO with 60 GHz well-suited to 100-1000m links Licensed pt-to-pt FSO with 7080GHz well-suited up to 1500m

EHF Best Suited to Backup for ProtectionDrawbacks to EHF for Primary Links:

The 70/80 GHz frequency bands are likely to be point-to-point licensed, based on WCA petition recommendations to FCC; licensing puts constraints on providing competing service.

While interference is mitigated at EHF, it is not eliminated: hence licensing to avoid interference issues. Minimal costs? Always delays.

>55 GHz frequencies have very severe rain-fade attenuation. BER is heavily impacted by this multiple scattering. This is overlooked in

rain performance projections: clear-air CNR is used in calculations. Pointing wander is a well-known phenomenon at these frequencies due

to refractive index variations, especially early morning and evening; also mispointing in high winds: need to avoid large, high-gain antennas

But 60 GHz and 70/80 GHz represent an ideal solution for RF backup to FSO, with fallback to RF in heavy local fog conditions.

SONAbeam FSO Attenuation in Heavy Rain: - much less than EHF

Rain Attenuation – ITU Rain Zone K

‘One Size Fits All’ for all the U.S. (except the Gulf Coast1)5-9s Rain Availability1

(5 min outage/yr)

100 mm/hrFSO: 20 dB/km3

60-90 GHz: 36 dB/km2

4-9s Rain Availability

(1 hr outage/yr)

42 mm/hr FSO: 8 dB/km 60-90 GHz: 18 dB/km2

1. 5-9s rain rate for Region K is same as 4-9s for Gulf Coast, Region N

2. FCC Bulletin No.70, 33 dB/km; experimental data indicate this understates rain atten

3. SONAbeam rain performance validated in Costa Rica, rain region P, to 135 mm/hr

Protected Links - Hybrid FSO/RF Approach

Most cost-effective solution for a fully protected link for 100m-1500m broadband wireless applications:

The SONAbeam provides the most cost-effective heavy rain penetration (20 dB/km rain fade vs. 36 dB/km for EHF at 100 mm/hr).

Designing hybrid solution for SONAbeam rain penetration allows lower-cost radio design

End result is the most cost-effective protected broadband wireless solution, using complementary technologies.

SONAbeam & 60 GHz for unlicensed backup (0.1% in fog) to 1000m SONAbeam & 70/80 GHz for licensed backup (0.1% in fog) to 1500m

60 GHz is lower cost*; Unlicensed RF allows immediate deployment, even on/to the same buildings as competing wireline or wireless service providers.

*60 GHz doesn’t require East/West radio architecture with xmtr & rcvr technology at two frequencies 10 GHz apart; O2 attenuation allows low-cost adaptive power control.

5-9s Availability: SONABeam/60 GHz

99.999% Availability; OC-12 and GigE Links

SONAbeam 1250-M with 60 GHz RF Backup

ITU-R

Rain Region

(mm/hr rate)

FSO

range

Heavy fog

60 GHz

range

In rain

FSO range

In rain

60 GHz

range

Heavy fog

SONAbeam

FSO/60 GHz

5-9s Avail.

D: 42 mm/hr 400m 680m 2800m 1300m 1300m

E: 70 mm/hr 400m 560m 1900m 1300m 1300m

K: 100 mm/hr 400m 480m 1450m 1300m 1300m

M: 120 mm/hr 400m 400m 1280m 1300m 1280m

N: 180 mm/hr 400m 320m 950m 1300m 950m

5-9s Availability: SONABeam/70-80 GHz

99.999% Availability; OC-12 and GigE Links

SONAbeam 1250-M with 70/80 GHz RF Backup

ITU-R

Rain Region

(mm/hr rate)

FSO

range

Heavy fog

74-84 GHz

In rain

FSO range

In rain

74-84 GHz

Heavy fog

SONAbeam

FSO/70-80

5-9s Avail.

D: 42 mm/hr 400m 880m 2800m 3500m 2800m

E: 70 mm/hr 400m 760m 1900m 3500m 1900m

K: 100 mm/hr 400m 680m 1450m 3500m 1450m

M: 120 mm/hr 400m 600m 1280m 3500m 1280m

N: 180 mm/hr 400m 520m 950m 3500m 950m

Background – GigE Wireless

25 years experience in design, installation, and operations of local, national, and international telecommunications networks Military Communications Center, Inc. Installed and operated 135

phone operations on 115 U.S. military bases worldwide Installed and operated secure satellite antenna/communications

systems for U.S. military in: Haiti, Desert Storm, Somalia, Kuwait, Saudi Arabia, Bosnia, Panama, Russia, Afghanistan, & Iraq.

Rebuilt national and international telephone network for government of Lebanon under Build, Operate, & Transfer (BOT) agreement 1991-1997

Established a national toll-clearinghouse for MCI & Sprint to bill & collect casual call messages with 1200 independent telephone companies

Established first carrier neutral interexchange company - MEANS

Frequencies & Wavelengths

GigE Today

Provides complete turn-key network design, installation, and operations for high capacity wireless network systems – nationally and worldwide

76 trained and experienced engineers and installation specialists Sales engineering support for all pre-sales, design, planning, and

installation services Specialize in:

60 Ghz MMW RF Optical Wireless 70/80 Ghz MMW RF

Applications Military Bases – Muni/City Networks – Wireless Carrier Coverage- HDTV Corporate Private Networks – SAN’s – Metro LAN/Ethernet

GigE Services – 70/80 Ghz

Holds nationwide non-exclusive license Coordinates each link installation through

third-party data-base operators – first come first serve

Performs interference analyses as per FCC rules

Conducts site survey, design, installation, testing, and ongoing network management

Link Considerations

Contact Information

GigE Wireless LLC 445 Oliver Ave S Minneapolis, MN 55405 Direct – 612-326-4731 mcorcoran@gigewireless.com