Cognitive radios for First Responders, Public Safety delivered June 2012.

1. xMax: Cognitive Radio Access Network (c-RAN)
Applications & Benefits for First
Responders and Beyond
The information presented herein is confidential and subject to change without notice. xG® and xMax® are
registered trademarks of xG Technology, Inc. Copyright 2011, All Rights Reserved. 1
www.xgtechnology.com

2. Introduction to xG Technology
► Leading player in cognitive radio network technology – enabling more
efficient use of scarce and/or expensive wireless spectrum
– continuing rapid growth of wireless data consumption creating „spectrum crisis‟
► Positive third party product validation
► Exceptional in-house R&D and product delivery team and extensive patent
portfolio (over 60 US and 140 international patents and patent filings)
► Significant near-term opportunities within existing core vertical markets
► Developer of xMax an all IP mobile broadband solution for real-time voice &
video, broadband data, and SMS (LTE is data only with limited voice)
A drive test I conducted of the xG xMax network in Fort Lauderdale, Florida (all while watching the spectrum in
real-time on a spectrum analyzer) showed that when the mobile unit drives into an area with existing
interference, the xMax network automatically changes to a different channel to avoid the interference. This
change occurred fast enough that not a single syllable of speech was missed.”
– Andy Seybold, Leading Public Safety Industry Analyst
The information presented herein is confidential and subject to change without notice. xG® and xMax® are
registered trademarks of xG Technology, Inc. Copyright 2011, All Rights Reserved. 2
www.xgtechnology.com

3. xMax Overview
VoIP
Cellular CORE
Network
POTS calling
SMS service
xMax Wireless Network xMSC
Public
or
Private
Wi-Fi Internet
Network SMS
server
xMod is a xMSC provides
mobile network
seamless xAPs provide management,
Smart Phones, bridge wireless voice, firewall , SIP
Laptops or any WiFi between WiFi data and Proxies, and
enabled device can and xMax video.connectiv SMS servers
connect to the xMod networks ity to xMods
WiFi Network xMax Cognitive Radio Network (C-RAN) Core Network Public/Private Network
The information presented herein is confidential and subject to change without notice. xG® and xMax® are
registered trademarks of xG Technology, Inc. Copyright 2010, All Rights Reserved. 3
www.xgtechnology.com

4. Cognitive Radio Overview
► Cognitive (smart) radios are able to identify spectrum (i.e. radio
frequencies) that is not being used, and to quickly tune to those frequencies
to transmit and/or receive signals.
► Have the ability to instantly find other spectrum if interference is detected
on the frequencies being used.
► Can adapt their own power output, modulation, channel plan, network
protocol, etc.. dynamically to maximize throughput (or range) and minimize
interference.
Cognitive radios dynamically optimize spectrum utilization through
opportunistic use of all available resources
The information presented herein is confidential and subject to change without notice. xG® and xMax® are
registered trademarks of xG Technology, Inc. Copyright 2011, All Rights Reserved. 4
www.xgtechnology.com

5. Keys to xG Cognitive Radio
– xG xMax system can
change channels in the xAP
face of interference
xMod
The information presented herein is confidential and subject to change without notice. xG® and xMax® are
registered trademarks of xG Technology, Inc. Copyright 2010, All Rights Reserved. 5
www.xgtechnology.com

6. Interference Avoidance:
xAP Detects Interference
Non xG
user
– xAP determines xAP
non xG system is
operating nearby
– xMax system
avoids using busy
channels
– Channels are
marked for reuse if Non xG
interference clears user
xMod
The information presented herein is confidential and subject to change without notice. xG® and xMax® are
registered trademarks of xG Technology, Inc. Copyright 2010, All Rights Reserved. 6
www.xgtechnology.com

7. Interference Avoidance:
xG Subscriber Detects
– Remote xG subscriber device
detects interference that AP
does not see on channel 1
– xG subscriber device selects xG AP xG AP
different channel from another on CH 1 on CH 8
AP
– xG “plays nice” with other
spectrum users.
xG
Device
Non xG Non xG
user user
The information presented herein is confidential and subject to change without notice. xG® and xMax® are
registered trademarks of xG Technology, Inc. Copyright 2010, All Rights Reserved. 7
www.xgtechnology.com

8. Use Case
Dynamic Radio Adaptation
Cognitive Network
Video
• High Bit Rate Modulation
• 5GHz
VoIP
• High Power File Transfer
• Low Bit Rate
Modulation • High Bit Rate
• 5GHz Modulation
• Low Power • 900MHz
VoIP • Medium Power
• Medium Bit Rate
Modulation
• 900MHz
• Low Power
The information presented herein is confidential and subject to change without notice. xG® and xMax® are
registered trademarks of xG Technology, Inc. Copyright 2011, All Rights Reserved. 8
www.xgtechnology.com

9. Use Case
Dynamic Radio Adaptation
Cognitive Network
Video
• High Bit Rate Modulation
• 5GHz
900MHz
VoIP
• High Power File Transfer
• Low Bit Rate
Modulation • High Bit Rate
• 5GHz Modulation
• Low Power • 900MHz
VoIP • Medium Power
High Power
• Low Bit Rate
Medium Bit Rate
Interferers Modulation
• 900MHz
• Low Power
The information presented herein is confidential and subject to change without notice. xG® and xMax® are
registered trademarks of xG Technology, Inc. Copyright 2011, All Rights Reserved. 9
www.xgtechnology.com

10. Network Comparison
xMax LTE 3G WIMAX Comment
xMax/LTE/WIMAX
all use OFDM and
High Data Rates YES YES NO YES higher order
modulation
Interference xMax designed for
Resistant YES NO NO NO interference rejection
All IP YES YES NO YES
xMax system
automatically
Self Configuring YES NO NO NO configures channel
assignments
Designed for voice
and data YES NO YES YES
xMax designed to
Dynamically Selects
Spectrum YES NO NO NO operate in different
channels and bands
Operates in free 3G/LTE/WIMAX not
designed for unlicensed
unlicensed YES NO NO NO “wild west” band usage
Spectrum
xMax chooses best
Cognitive Operation YES NO NO NO channels in real time
Simplified RF xMax finds and uses
engineering YES NO NO NO available channels
LTE designed single
The information presented herein is confidential and subject to change without notice. xG® and xMax® are
MIMO YES YES/NO NO YES
registered trademarks of xG Technology, Inc. Copyright 2011, All Rights Reserved.
carrier uplink MIMO
10
www.xgtechnology.com downlink

11. xMax Cognitive Technology
xMax Layered Cognitive Approach:
– Spectrum sensing: Interference based detection of transmitters.
– Spatial processing: MIMO technologies allow resistance to interferers.
Optimize SNR using multiple antenna processing.
– Spectrum sharing: Able to operate in crowed shared spectrum (ISM
UNI II etc.). Detect interferers, mitigate them, or avoid them by changing
operating parameters or frequencies.
– Spectrum management: Capture the most available spectrum.
Terminals and Base Station can change operating frequencies
dynamically.
– Spectrum mobility: Use spectrum dynamically. Mobile user stations
and base stations can decide to change bands where they operate.
The information presented herein is confidential and subject to change without notice. xG® and xMax® are
registered trademarks of xG Technology, Inc. Copyright 2011, All Rights Reserved. 11
www.xgtechnology.com

12. xMax: 2012 release features
Cellular
Network
Key Features:
► Leverages free spectrum via industry leading interference mitigation technology
– Delivers a licensed spectrum experience in unlicensed spectrum
► Supports Voice (VoIP), Video and Data on a single integrated network
► Adds capacity anywhere, anytime without using PS frequencies
► Offers per user broadband data rates of up to 3.5Mbps
► Voice is tagged and prioritized end-to-end through network for high reliability
► Highly mobile, proven performance with SatCom backhaul
The information presented herein is confidential and subject to change without notice. xG® and xMax® are
registered trademarks of xG Technology, Inc. Copyright 2011, All Rights Reserved. 12
www.xgtechnology.com

13. H1 deployment platform
Fully Tactical Deployment
► Proven at Ft Bliss and
White Sands Missile
Range
► Seamless integration with
SatCom
► Self-contained and fully
mobile
"xG brings a capability we have not seen in any other products available today, especially in a cellular form
factor. As we develop new technologies for the Army, one of our biggest challenges will always be spectrum
availability.“
– Lieutenant Colonel John Moelter, Chief of Integrations, U.S. Army Signal Center of Excellence
The information presented herein is confidential and subject to change without notice. xG® and xMax® are
registered trademarks of xG Technology, Inc. Copyright 2011, All Rights Reserved. 13
www.xgtechnology.com

14. Leverage DoD Capabilities
Army App
Soldier
“I ran an excursion where we
attempted to jam it with
WiFi
conventional military jamming
xMod systems, and we were unable to
do it, xMax was able to stay
COTS ahead of the jammers that were
Smart Phone
Data Access
trying to attack it and kept the
communications systems up and
Command Post operational throughout the two
•Voice & Data weeks that I ran the jammers”.
•Push & receive video
•Share pictures Mike McCarthy, Dir. of Operations,
•Position location info (PLI)
Brigade Modernization Command ,
•Collaborate, whiteboard , chat
•SMS, text, Ft. Bliss, TX
•PTT, call group
The information presented herein is confidential and subject to change without notice. xG® and xMax® are
registered trademarks of xG Technology, Inc. Copyright 2011, All Rights Reserved. 14
www.xgtechnology.com

15. Self Organizing Aerial Layer
► Network Dynamic
Channel Planning will
instantly form and adjust
to the environment,
allowing cognitive radios
to adapt and connect to
the best possible
spectrum with maximum
bandwidth
► System will not interfere
with licensed networks
► Can be made to operate
on 700 MHz
The information presented herein is confidential and subject to change without notice. xG® and xMax® are
registered trademarks of xG Technology, Inc. Copyright 2011, All Rights Reserved. 15
www.xgtechnology.com

16. Innovation: Pilot Networks
Urban/Suburban - Ft. Lauderdale, Florida “These are major-
league pioneers who
– fully mobile network have built something
– densely populated that works well.“
Craig Mathias,
– interference-rich environment Wireless Analyst, 2010
– extensive testing has allowed continual system
Ft. Lauderdale, FL performance enhancement and development
of robust system
Rural – Lewisville, Arkansas & MacClenny, FL
– underserved market
– low noise, excellent range
Lewisville, AR
Military - US Army - TX, NM, NJ
– lab validated (CERDEC)
– garrison enterprise solution
– tactical cellular – austere desert
White Sands, NM
The information presented herein is confidential and subject to change without notice. xG® and xMax® are
registered trademarks of xG Technology, Inc. Copyright 2011, All Rights Reserved. 16
www.xgtechnology.com

17. xMax smarts makes it simple…
xMax offers Public Safety the following key benefits:
► Self-Frequency Planning - the system comes up automatically and finds
available frequencies, no manual frequency co-ordination required
► Self-Optimizing- the system uses Dynamic Spectrum Access technology to
maximize throughput and reliability, delivering a licensed spectrum experience
in unlicensed spectrum
► Leverages existing smartphones, laptops, tablets, etc.. directly into
the xMax mobile radio network to save costs and offer unmatched applications
and functionality
► End-To-End IP Architecture - simplifies integration with LTE, P25 and
other networks via industry standard interfaces and protocols
► Tactical and Scalable Deployments – rapidly deployable size and
weight, proven integration with satellite and point to point backhaul radios
► Difficult to Jam or Hack – Dynamic channel/band hoping makes jamming
attacks and penetrations far more difficult than traditional radio systems
The information presented herein is confidential and subject to change without notice. xG® and xMax® are
registered trademarks of xG Technology, Inc. Copyright 2011, All Rights Reserved. 17
www.xgtechnology.com

18. Thank You!
For more on xG visit:
www.xgtechnology.com
The information presented herein is confidential and subject to change without notice. xG® and xMax® are
registered trademarks of xG Technology, Inc. Copyright 2011, All Rights Reserved. 18
www.xgtechnology.com