Haute Spot Customer Technology Overview

1. HauteSpot Networks Customer and Technology Overview

2. What Is Haute? Haute - adj. Pronounced "hÕt". From the French word meaning high or elegant. The Haute Route is the classic ski touring route between the two most famous alpine centers in Europe - Chamonix in France and Zermatt in Switzerland. A Haute Router from HauteSpot Networks is the leading broadband wireless access device available today

3. January 30, 2010 Any Camera, AnyWhere ® From 20 yards to 20 miles, from CCTV to HD Broadcast production, HauteSpot Networks’ wireless technology allows any camera, or weather station, to be located virtually anywhere. Core Message

4. Video surveillance is the “killer” app for wireless broadband Video is constrained today by wires and slow wireless High definition real time video has unique demands for wireless — Low Latency — Consistent Delay Variation Bandwidth requirements grow in parallel with resolution and frame rate requirements. The problem is only growing bigger. Camera density requirements are growing rapidly Existing wireless topologies and protocols do not support video well Video Over Wireless IP Problem

5. General Application HauteSpot Solution

6. Usage Models Megapixel Cameras HD Displays Incident Command Traffic Cameras Studio Links Fire station links Emergency Services High Bandwidth Muni wireless Mobile Mesh Facility Security

7. US Army Corp of Engineers

8. Justin Winery— Pacific Beach Tower

9. Croxton NJ Rail Yard – American One Security

10. Santa Maria International Airport – Patronus Labs

11. Citizens Gas Plant – Simplex Grinnell

12. Folsom State Prison– 3D Datacom

14. Range in A Box – Strategic Systems Inc.

15. Remote Robotic Mine Clearing Tank— Autonomous Solutions 8 Pan Tilt Zoom Controlled Cameras Bosch VideoJet 8000 Encoder (inside) Phased Array Antenna System HR-IXPSXP-2 Wireless Router With Serial Over IP (inside) Already Deployed US Army

16. US Army Special Forces Camp McKall— Simplex Grinnell

17. Shopping District of Herzilya— Magalcom

18. MANUFACTURER REPS DISTRIBUTORS OEMS

19. SYSTEM INTEGRATORS END USERS

20. Video Encoders Multi Mega Pixel Surveillance Cameras Back-End Systems

21. Wireless Technologies 8 02.11 — Carrier Sense Multiple Access Collision Avoidance — Designed for heterogeneous data — Short range — Non-deterministic timing — Stop and Wait — Basis for mesh networks Mesh — On top of 802.11 adds link quality based routing — Designed for heterogeneous, non-time dependent data — Adds routing delay variation on top of 802.11 collision delay

22. HauteSpot TDMA-like Protocol Time Division Multiple Access Master controls stations — Allows for interference avoidance Uniform timing No collisions ARQ error correction 1/2, 2/3, 3/4 Forward error correction Standardized frame sizing

23. What’s Wrong with 802.11? 802.11 Protocol is Carrier Sense Multiple Access/Collision Avoidance Timing Variation = Jitter Listen to No Traffic Send Data Wait for ACK If ACK received, send next No ACK, Back off Random Period. Begin resend

24. 802.11 CSMA/CA protocol 802.11 Uses Carrier Sense Multiple Access/Collision Avoidance Collision = Jitter

25. HauteSpot TDMA-like Protocol TDMA Eliminates Collisions, Yielding Better Performance And Scale-ability No Collision = No Jitter

26. Stop and Wait Vs ARQ TDMA Eliminates Collisions, Yielding Better Performance And Scale-ability Timing Variation = Jitter Ordered Delivery = Low Jitter

27. How Much Of A Difference? Efficiency vs. Error Rate HauteSpot TDMA like protocol 802.11 protocol

28. Variable Frame Size vs Fixed Size Efficiency vs. Optimal Frame Size HauteSpot TDMA like protocol 802.11 protocol

29. Mesh SEND A, B, C RECEIVE B, C, A Relay Node Relay Node Timing Variation = Jitter

30. Interference Avoidance Mesh — Every node is a peer — Must share common frequency — Interference on a channel from a high gain radiator could bring entire network down HauteSpot TDMA — Master monitors signal and noise — Stations follow the frequency of the master — If interference rises on frequency, master will select the best frequency in band and move — Stations follow master frequency

31. How Far Can We Go? Physics Limits Range High Definition Video needs Bandwidth — 25 to 81Mbps of actual throughput is required — 20 to 40 MHz channel width is required to achieve this performance, even with the best modulation schemes (16 or 64-QAM) — To get 20 to 40 MHz of contiguous bandwidth you need to move to higher frequencies — Higher frequencies are more directional — Higher frequencies have more path loss — High data rate ~ 8 mi — Lower data rate ~ 20 mi — NLOS ~ 2 mi but can be further using lower rate at 900MHz

32. Licensed vs Unlicensed Licensed (765MHz, 1.7GHz, 2.1-2.3GHz, 2.5 -2.7GHz, 3.3-3.7GHz, 4.4GHz 4.9GHz, 5.9-6.1GHz) — Limits Interference — Coordinated Unlicensed (900MHz, 2.4GHz, 3.65GHz, 5GHz) — Free — Unreliable due to interference — No co-ordination (except for 3.65GHz) How Can You Achieve Reliable Unlicensed Links? — Narrow beam antennas — Vary antenna polarity — Adaptive Noise Immunity — 5 or 10 MHz channel widths — Dynamic Frequency Selection/scripting — TDMA – Like protocol (TLP) Only HauteSpot Supports All

33. Competitive Technologies 802.11 — Slow – less than 15Mbps — Short Range - mostly — Contention Based – Lots of jitter — Prone to interference — Insecure — Not frequency agile Mesh — All issues of 802.11 plus delay variation — Much more reliable and easier to install than 802.11 COFDM Microwave — Very Expensive — One Way Only — Completely Proprietary — Not extensible 802.16 — Base station silicon too expensive and too big — Intended for carriers, doesn’t economically scale down yet — Designed for Asymmetric download (web surfing) — Not currently frequency agile — Time Slotted, but still prone to delay variation EvDO/GPRS — Slow (less than 300Kbps) — High Latency — Fair access policy limits bandwidth Too Slow Too Delayed Too Variable Proprietary (Not TCP/IP) Does Not Scale Well Too Expensive

34. Transport Protocols HTTP . Easy to use, passes through firewalls, not very efficient (TCP), heavy load on server, few simultaneous users Multicast . Uses broadcast domains to send out traffic. On single layer 2 networks it works well (UDP), but to route you need IGMP, PIM and tunnels across the public internet. Difficult to deploy Unicast . Uses UDP streams which have to be set up in advanced between server and client. Low overhead, good for static links, but not so great for dynamic stream sharing RTSP/RTP . Real time streaming protocol is a control layer that allows clients to make requests of server. Real time transport protocol is the actual transport stream being controlled by RTSP. UDP, very efficient. — RTCP . Real time control protocol used to pass back feedback from clients to server on network conditions and video quality

35. How Big A Pipe is Needed ? Encoded Stream Sizes

36. Best Practices USE UDP, not TCP Use Multicast or RTP/RTSP Limit back traffic like management Use RF channel segregation to achieve bandwidth Don’t use 802.11 Avoid mesh Avoid repeating on single radio