video54 series a 2004

Video54 Confidential. Do Not Distribute Without Video54’s Consent

Wi-Fi for Digital MediaWi-Fi for Digital Media

Video54 Confidential. Do Not Distribute Without Video54’s ConsentVideo54 Introduction

Who we areWho we are

• Series-A startup Funded by Sequoia Capital and private investors

• Developing Wi-Fi solutions for high performance digital media networks

• Industry veterans with expertise in networking, communications software, wireless, antennas, home networking and consumer electronics

• R&D since September 2002

• Alpha stage technology prototype Real world testing in 15+ actual homes Extensive simulations


PeoplePeople

• Selina Lo, CEO Alteon, Nortel, Bay Networks, Centillion Networks, NET, HP

• Bill Kish, Founder and CTO Real-time networking systems & protocols Fore Systems, Berkeley Networks, Lightera/Ciena

• Victor Shtrom, Founder and Chief Wireless Architect Smart antennas, Wireless propagation, MIMO-OFDM Argo Systems, Boeing, Iospan Wireless

• Dominic Orr, Chairman Aruba Wireless, Alteon, Nortel, Bay Networks/Netgear, HP

• Gaurav Garg, Director Sequoia Capital Co-Founder Redback Networks


Media Networking: the New Growth Area

Media Networking: the New Growth Area

• 11M networked media devices shipped in 2003, 89M by 2007

• 1% home networks carry media traffic* in 2003, 9% by 2005, 25% by 2007

* Excluding online gaming

Source: In-Stat/MDR, 2004

Wi-Fi TV

Cellular

Satellite

Premium Content

Wi-Fi TV

DVR

Game Console

Set-top Box/PVR

TV with Media Adapter

Networked Camcorder

Game Console/PVR

Media Receiver

Wi-Fi TV

Wi-Fi IP

Phone

Stereo w/ Media Adapter

Audio Jukebox

Media Server

Wi-Fi IP

Phone

Wi-Fi TV

Internet

DSL/CableWireless Router

Data NetworkData Network

Media NetworkMedia Network

• 28% home networks are Wi-Fi in 2003, 69% by 2007


Media Networking RequirementsMedia Networking Requirements• Simultaneous media applications

Streaming videos from PC to any TV at home Streaming music from PC/PDA/MP3-player to home stereo system Making VoIP calls across broadband WAN Multi-user gaming Streaming photos in PC/PDA/camera for viewing on TV Telemetry (security, meter-reading, etc)

• Multiple traffic streams requiring differentiated treatment, eg: 1 DVD-quality video stream: 3.5-10 Mbps at < 50 ms jitter 2 local gaming users: 7-20 Mbps at < 20-50 ms jitter 2 VoWLAN streams: 0.128 Mbps at < 50-100 ms jitter (local) 2 CD-quality audio streams: 0.256 Mbps ABR traffic: 0.386 Mpbs Total house: 13-31 Mbps continuous bandwidth w/ <50ms

jitter

• Whole house coverage: Typically 30 – 150 ft range Typically 1 - 4 intervening walls


A Fundamental ProblemA Fundamental Problem

Show-stopper for digital media applications!

• Wi-Fi is unpredictable Irregular throughput due to inconsistent data rates

Limited range

Spotty coverage

Inherently unreliable

• Interference & multipath

• Physical adds/moves/changes affect the network

• San Jose Mercury News: “I put the base station [of the Sharp Aquos Wi-Fi TV] in the living room…. Reception was excellent within the living room, but faded in my bedroom just 25 feet away after passing through several walls…. When I turned on the microwave oven in my kitchen, …, the Aquos immediately stopped, with an unmoving image and no sound…. June 2004


The Coverage ProblemThe Coverage Problem

Signal

Shadowed

Strong Signal

mirror

RF Interference

RF Interference

RF Interference

Multipath Interference

AP

Multipath


Multipath InterferenceMultipath InterferenceConstant shifting of signal strength compounds the problem!

Rel

ativ

e Si

gnal

Str

engt

h (d

B)

1 foot

Red areas indicate > 5dB signal fadeSystem with 5dB margin will experience outage if antennas are located in red areas

time time Top view


MicroSpatial

Polarization Pattern

TemporalFrequency

MacroSpatial

Hyper Diversity

Our Technology: Hyper-DiversityTMOur Technology: Hyper-DiversityTM

• Hyper-diversityTM Antenna Dynamic antenna array Many signal paths (orders of diversity)

• Real-time software antenna control based on Network condition Real-time calibration

• Extends range; full house coverage

• Protects against interference

• Provides consistent performance

• Compatible with 802.11 a/b/g

• Utilizes standard low-cost chipset

• “Soft MIMO”


How Hyper-Diversity Antenna WorksHow Hyper-Diversity Antenna Works

• Software learns and tracks changes in the environment

• Dynamically controls antenna patterns for different end points

• Selects optimal antenna configuration to maximize received power and avoid link outages

• Can be implemented on transmit-only, receive-only or both sides

Video54 Hyper-diversity antenna

Situation causing a change in multipath locations, eg, dog walking by, door opening or shutting, etc

time


Our Technology: Media QoSOur Technology: Media QoS

• Intelligent bandwidth and traffic control for delay sensitive applications

• 802.11e and more

• Media optimized at all levels Flow classification Rate selection via intelligent antenna

switching Contention Window Management

minimizes delay for real-time streams Retransmission Strategy

• TCP specific MAC enhancements TCP treats loss as congestion, not the case

with Wi-Fi

Traffic Classification

TCP/UDP

IP

Media QoS

Rate Selection

Re- transmission

Queue Mgmt

Video Enhancements

Dynamic Antenna Control

Security & Configuration


0

5

10

15

20

25

30

35

40

0 10 20 30 40 50 60 70 80 90 100

High Definition MPEG-2

DVD MPEG-2

WM9 Standard Definition

WM9 High Definition

IP-L

ayer

Thr

ough

put (

Mbp

s)

Distance (ft)

Video54 802.11g AP

Off-the-shelf 802.11g AP

Typical household (signals traversed up to 4 walls)

Throughput and Range ImprovementsThroughput and Range Improvements

HDTV (Japan)

2X throughput at 36 feet (through 3 walls)

>1.8X distance improvement at 25Mbps


0.0001

0.001

0.01

0.1

1

35 40 45 50 55 60 65 70 75 80

0.0001

0.001

0.01

0.1

1

35 40 45 50 55 60 65 70 75 80

Service Consistency and ReliabilityService Consistency and Reliability

36Mbps PHY rate performance with walls at 19, 38, 56 and 75ft

Distance (ft)

Lin

k O

uta

ge

Pro

bab

ility

90%

99%

99.9%

99.99%

Lin

k A

vail

abil

ity

(%)

Two antenna Maximal Ratio Combining * higher performance than

anntennas in off-the-shelf APs

Video54Hyper-DiversityTM

1% probability = more than one

outage a minute


3

4

5

6

7

8

9

10

11

80 90 100 110 120

Receiver with standard Antennas: Atheros 5211 mini-PCI card, Micro Mobio MMPA745 power amp, two 4dBi DWL-AB520 off-the-shelf omni antennas.Video54 receiver uses same power amp and PCI card equipped with our Hyper Diversity Antennas

Video54 Hyper-Diversity Antenna vs Typical Omni Antenna

Measured SNR GainMeasured SNR GainV

ideo

54 R

ecei

ved

SN

R g

ain

(dB

)

Total Pathloss (dB)

Multipath Region


Home Networking TechnologiesHome Networking Technologies

Band-width Reach QoSCompetitors Cost Notes

Vendor Support

Consumer Adoption

Goo

dG

ood

Goo

d

Goo

d

Goo

d

Goo

d

Fair

Fair

Fair

Fair

Fair

Fair

Fair

Fair

Fair

Fair

Excel

lent

Excel

lent

Excel

lent

Excel

lent

Excel

lent

Excel

lent

Excel

lent

Excel

lent

Excel

lent

Excel

lent

Excel

lent

Excel

lent

Poor

Goo

d

Poor

N/A

N/A N/A N/AN/A

Video54

Goo

d+

Goo

d+

Excel

lent

Excel

lent

Excel

lent

Excel

lent

Source: In-stat/MDR 4/04

Available Q4 2004


Home Networking Technologies: Penetration ForecastHome Networking Technologies: Penetration Forecast


Video54 Go to Market StrategyVideo54 Go to Market Strategy

• Standalone AP

• CE Integrated AP or Client systems

• Establish Video54 brand in high performance Wireless Media Networking

• Partner for mass distribution


What is in it for you?What is in it for you?

• First to market with enhancements to a proven technology that solves a real problem in a huge growing market

• No customer resistence No change to existing home network and device interfaces Single network for data and media No new installation complexity

• Free you to focus on your core competence Content delivery Broadband infrastructure Next generation CE capabilities


Video54 AdvantagesVideo54 Advantages

• Maximize customer experience Eliminates nerve-racking variability due to Wi-Fi interference Media and data connectivity anywhere, anyway, at home

• Performance Multiple simultaneous video, audio and data streams HDTV-ready Wi-Fi

• Availability Video54 Media WiFi Access Point: Q4 2004 Enhances all existing 802.11 devices No need to wait for new standards/protocols/chipsets Technology can be integrated in media centers (eg, STBs) as AP or

Client NIC

• Low cost Use of off-the-shelf Wi-Fi components Minimal incremental costs compared to current Wi-Fi products

video54 series a 2004

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