cognitive radio networks for emergency communications june 2012

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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.

www.xgtechnology.com

xMax: Cognitive Radio Access Network (c-RAN)

Applications & Benefits for First Responders and Beyond

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► 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)

Introduction to xG Technology

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



www.xgtechnology.com 3

xMax Wireless Network

Public

or

Private

Internet

xMSC

xMax Cognitive Radio Network (C-RAN) Core Network Public/Private Network

VoIP

CORE

POTS calling

SMS service

Wi-Fi

Network

xMSC provides

network

management,

firewall , SIP

Proxies, and

SMS servers

xMod is a

mobile

seamless

bridge

between WiFi

and xMax

networks

Smart Phones,

Laptops or any WiFi

enabled device can

connect to the xMod

xAPs provide

wireless voice,

data and

video.connectiv

ity to xMods

WiFi Network

SMS

server

xMax Overview

Cellular

Network

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► 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

Cognitive Radio Overview




– xG xMax system can

change channels in the

face of interference xAP

xMod

Keys to xG Cognitive Radio




– xAP determines

non xG system is

operating nearby

– xMax system

avoids using busy

channels

– Channels are

marked for reuse if

interference clears

Non xG

user

xAP

Non xG

user

Interference Avoidance: xAP Detects Interference

xMod




– Remote xG subscriber device

detects interference that AP

does not see on channel 1

– xG subscriber device selects

different channel from another

AP

– xG “plays nice” with other

spectrum users.

xG AP

on CH 1

xG

Device

xG AP

on CH 8

Non xG

user Non xG

user

Interference Avoidance: xG Subscriber Detects

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Use Case

Cognitive Network

Dynamic Radio Adaptation

VoIP

VoIP

Video

File Transfer

• Low Bit Rate

Modulation

• 5GHz

• Low Power

• High Bit Rate Modulation

• 5GHz

• High Power

• Medium Bit Rate

Modulation

• 900MHz

• Low Power

• High Bit Rate

Modulation

• 900MHz

• Medium Power

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Use Case

Cognitive Network

Dynamic Radio Adaptation

VoIP

VoIP

Video

File Transfer

• Low Bit Rate

Modulation

• 5GHz

• Low Power


• 5GHz

• High Power

• Medium Bit Rate

Modulation

• 900MHz

• Low Power

• High Bit Rate

Modulation

• 900MHz

• Medium Power


• 900MHz

• High Power

• High Bit Rate

Modulation

• 900MHz

• High Power

• Low Bit Rate

Modulation

• 900MHz

• Low Power

Interferers

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Network Comparison

xMax LTE 3G WIMAX Comment

High Data Rates YES YES NO YES

xMax/LTE/WIMAX

all use OFDM and

higher order

modulation

Interference

Resistant YES NO NO NO xMax designed for

interference rejection

All IP YES YES NO YES

Self Configuring YES NO NO NO

xMax system

automatically

configures channel

assignments

Designed for voice

and data YES NO YES YES

Dynamically Selects

Spectrum YES NO NO NO xMax designed to

operate in different

channels and bands

Operates in free

unlicensed

Spectrum YES NO NO NO

3G/LTE/WIMAX not

designed for unlicensed

“wild west” band usage

Cognitive Operation YES NO NO NO xMax chooses best

channels in real time

Simplified RF

engineering YES NO NO NO xMax finds and uses

available channels

MIMO YES YES/NO NO YES LTE designed single

carrier uplink MIMO

downlink

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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.

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xMax: 2012 release features

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

Cellular

Network

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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

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Leverage DoD Capabilities

WiFi

COTS

Smart Phone

xMod

Data Access

•Voice & Data •Push & receive video •Share pictures •Position location info (PLI) •Collaborate, whiteboard , chat •SMS, text, •PTT, call group

Soldier

Command Post

Army App

“I ran an excursion where we

attempted to jam it with

conventional military jamming

systems, and we were unable to

do it, xMax was able to stay

ahead of the jammers that were

trying to attack it and kept the

communications systems up and

operational throughout the two

weeks that I ran the jammers”.

Mike McCarthy, Dir. of Operations,

Brigade Modernization Command ,

Ft. Bliss, TX

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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

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Urban/Suburban - Ft. Lauderdale, Florida – fully mobile network

– densely populated

– interference-rich environment

– extensive testing has allowed continual system performance enhancement and development of robust system

Rural – Lewisville, Arkansas & MacClenny, FL – underserved market

– low noise, excellent range

Military - US Army - TX, NM, NJ – lab validated (CERDEC)

– garrison enterprise solution

– tactical cellular – austere desert

Innovation: Pilot Networks

“These are major-league pioneers who have built something that works well.“ Craig Mathias, Wireless Analyst, 2010

White Sands, NM

Lewisville, AR

Ft. Lauderdale, FL

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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

xMax smarts makes it simple…

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Thank You!

For more on xG visit:


http://www.xgtechnology.com/

cognitive radio networks for emergency communications june 2012

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