MeshDynamics Technical Overrview

Technology Overview

Wireless for the Outdoor EnterpriseTM

• Multi-radio mesh development begun 2002– Core Patents on Multi-radio mesh filed Oct 2002, issued 2008– Two radio backhaul prototype implemented Nov 2003– Scalable Distributed Radio Management demoed Aug 2004

• Meshdynamics incorporated 2005– IP from earlier developments incorporated– IP portfolio extended to 9 patent applications + 1 awarded. – First products shipped 2005, production release 11/05– Profitable in FY 2008. No long term debt.

• 100+ networks, 1500+ nodes installed worldwide– References available from USAF, US Army, SPAWAR San Diego,

BAESystems, DCS Corporation, General Dynamics, Northrop Grumman, military defense contractors in Israel, UK, Canada, Shotspotter, Joy Mining, Rio Tinto Mining, Seismic exploration companies, Professional Golf Association (PGA), IBM.

Company Background

• Extremely high performance, many hops, low latency per hop– High bandwidth, minimal delay for video, data– Proven superior in extensive testing by SPAWAR, USAF– Proven external communication from inside mine 12 hops long

• Distributed dynamic radio intelligence– Cooperative “Radio robots” inside node automate mesh set-up– Network reuses channels for maximum performance– Automated interference avoidance works at segmented levels

• Exceptional mobility capabilities– Scanning subsystem continuously monitoring RF environment– Dynamic network forms and reforms rapidly.

• Radio Agnostic Architecture– Hardware Abstracted Layer treats radio as a port. – Device Abstracted Layer supports 2.4G, 4.9G, 5.8G radio– Permitted channel lists is dynamic, remotely configurable.

• Platform Agnostic Software– Runs on Multiple versions of Linux – Being ported to Windows (Laptops) and Windows Mobile (Smart phones)

Core Competitive Advantages

• Events/tactical networks– Fast set-up, interference avoidance, high performance for video– 100+ Nodes with Professional Golfers Assoc.[IBM/PGA]

• Mining, Seismic Exploration– High performance over many hops, compact size– 100+ Nodes in Wireless Sensor Grids for Seismic exploration

• Rail and transportation corridors– Mobility, consistent high performance over many hops– 60+ Nodes evaluation in progress in Korea

• Military and mobility– High performance, automated network formation at speed– 25+ nodes Truck Convoy tested in Iraq, Army bases.

• Border and perimeter security– High performance for video over many hops, fast set-up– 25+ nodes deployed along Arizona-Mexico border for DHS

Proven Scalability

backhaul long-range

mesh municipal

safetypublic

events sporting

solutionssurveillance

mining underground

mining surface

mesh mobile

deployments military

References: SPAWAR San Diego, NPS, Field Tests by Military Contractors for US Army

deployments military

• Switch Stacks tree like topology has proven scalability• MeshDynamics Emulates Layer II Switch Stack wirelessly.• Dynamic channel management insulates wireless “wires”

The Wired Switch Stack Paradigm

Separate Contention Domains

The Wireless Switch Stack Paradigm

Separate Contention Domains

• Emulates Layer Two Switch Stack Architecture. (Scalable)• Dynamic Channel Management manages “insulation”.

Hub Switch

• Emulates Layer Two Switch Stack Architecture. (Scalable)• Dynamic Channel Management manages “insulation”.• Multiple Channels enables Local Interference Management

Entire Mesh is affected by Local Interference Source

Single Radio = Single Channel

Only one segment is affected by Local Interference Source

Only one link has to change Channels

Minimal Performance DegradationOne Hop

Two Hops

Three Hops

22-23 Mbps TCP/IP

Minimal Performance Degradation

USAF Test Findings at Force Protection Battle Lab. 1. Bandwidth is preserved even beyond 9 hops2. Latency is less than 1 ms per hop3. Scalable across both string and star topologies

Two Hops

Three Hops

22-23 Mbps TCP/IP

One Hop

Performance Degradation For Others

Controlled Latency and Jitter (VOIP)

Jitter experienced by 36 simultaneous callers.

Less than 4 ms average over 4 hops.

One way delay experienced by the 36 simultaneous callers:

Latency with Concatenation Engine is 10 ms + 1 ms per hop

Video Surveillance with Mobile Node

Wired End Mobile Camera

Douglas Station

Deployed Mobility Applications

Trunk Mounted Unit (Mobile Unit)

Douglas Arizona, SPAWAR San Diego/ DHS

• All COTS Hardware. • All Smarts in Radio Management

Modular Four Radio Outdoor Enclosure

Distributed Control System

. Dynamic Channel Management

. Rapid Mesh Formation/Modification

. Same Code base in all models

Radio Agnostic Architecture

. Hardware Abstraction Layer talks to radios.

. Supports multiple backhauls/modes in one framework

. Heartbeat updates supports interoperation between models.

dynamics mesh

5GHz UPLINK

5GHz DOWNLINK

Modular Four Radio Configurations

dynamics mesh

5GHz UPLINK

5GHz DOWNLINK2.4GHz AP

(2ND) 5GHz AP or

Mobility Scanner

Modular Four Radio Configurations

…………VOIP

WIRELESSCLIENTS

Smart Outdoor Low Loss Extension Cable

…………VOIP

WIRELESSCLIENTS

…………VOIP

WIRELESSCLIENTS

…………VOIP

WIRELESSCLIENTS

Episodic and Mobile Networks

Connectivity within Cluster at all Times. (No root node is required)

Excerpts from Video Web Cast at: www.meshdynamics.com/MDWebCasts.html

Hybrid Mesh

Connectivity within Cluster(No root node is needed)

Hybrid Mesh

A B, Islands - client connectivity limited to clients of one node

C Floating Network - client connectivity limited to clients of connected nodes, no external connection available, no connectivity to other nodes in network

Wired gateway access

. Other Mesh Networks

. PSTN via PBX

Only Phone with PSTN access

Persistent VOIP Connectivity Within Clusters

. PSTN via PBX

• As Mesh clusters coalesce, SIP registry is updated.• Client communication range and accessibility increases. .

. PSTN via PBX

• As Mesh clusters coalesce, SIP registry is updated.• Client communication range and accessibility increases. • PSTN access also if any one mesh node has wired gateway access.

Network Management System

Network TopologyNode Specific

Heart Beat Updates

Network Management System

One Network View, All products

One Network for 1,2,3 or 4 radio systems

Radio and Platform Independence

802.11AP

BRIDGE

MESHALGORITHM

OS ABSTRACTION LAYER

SECURITYCOMPONENTS

NET DRV COUPLINGINTERFACE

netdrv

ALL NETWORK DRIVERS FOR SPECIFIED OS

IMPLEMENT COUPLING TO INTERFACE W/ OS ABSTRACTION LAYER

RADIO H/W & OS PLATFORM INDEPENDENCE

Radio Specific Mappings

MESHDYNAMICSNMS JAVA ENGINE

MESHDYNAMICS JAVA APPLICATION API

CUSTOMJAVA

APPLICATION

THIRDPARTY

ADAPTER

MESHDYNAMICSJAVASCRIPT APPLICATION

AUTOMATIONSCRIPTS

THIRDPARTY

APPLICATIONS

NMS Customization For OEMs

MESHDYNAMICS STANDARDNETWORK MANAGEMENT INTERFACE

CUSTOM NETWORK MANAGEMENT INTERFACE (Web View)

NMS API Interface For OEMs

Scalable Publish/Subscribe model

UDP heart beat packets published periodically on network.

One type of “Subscriber” updates Database. In publish/subscribemodel there is limit on number of subscribers or publishers.

Other publishers could be customer application data. Example: Sensor updates from serial line interface: battery power or GPS location also time stamped and stored in database

Same scalable model applies to all.

Customized Browser Interface

Parent Downlink RSSI (Mobility)

Custom Heartbeats Application

Exposed NMS API used to update locations on maps from

1. www.OpenStreetMap.org (maps preloaded and stored)2. www.maps.google.com (Online loading)

Custom Heartbeats Application

Remote Monitor/Management

Options:

. Stream Forwarding

. Query Forwarding

. Web View from Database Logs

. Adaptors for SNMP

More Information ?

1. These slides are located at:

www.meshdynamics.com/documents/MDTechoverview.pdf

2. Other presentations at:

www.meshdynamics.com/tech-presentations.html

3. Email: fdacosta@meshdynamics.com

Thank you.

RF Planner and Location Estimation

Triangulated Location Estimate

RF Range Envelope (12 Mbps) Estimated

Taught Obstacles

RF Range Envelope (12 Mbps) measured by Mobile Scanner

Aperiodic Sensor Update Request

Packet Level Configuration

Packet Level Rule Based Management

Radio/Port Level Configuration

NMS self configures Dialog for Model Number

RF Editor: Custom Channel Width, Frequency

Custom Channel Width

Custom Channel Frequency

MeshDynamics Technical Overrview

disclosed

switch stack

client connectivity

client communication

spawar san

hybrid mesh

persistent

video web

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