meshdynamics technical overrview
DESCRIPTION
Overview of MeshDynamics patented third generation wireless mesh networking technology and what makes it different.TRANSCRIPT
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© 2005-2009 MeshDynamics Corp. [email protected]. Disclosed content patented and patent pending. 1
Technology Overview
Wireless for the Outdoor EnterpriseTM
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© 2005-2009 MeshDynamics Corp. [email protected]. Disclosed content patented and patent pending. 2
• 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
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© 2005-2009 MeshDynamics Corp. [email protected]. Disclosed content patented and patent pending. 3
• 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
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© 2005-2009 MeshDynamics Corp. [email protected]. Disclosed content patented and patent pending. 4
• 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
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© 2005-2009 MeshDynamics Corp. [email protected]. Disclosed content patented and patent pending. 5
backhaul long-range
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© 2005-2009 MeshDynamics Corp. [email protected]. Disclosed content patented and patent pending. 6
mesh municipal
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safetypublic
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events sporting
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solutionssurveillance
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mining underground
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mining surface
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mesh mobile
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deployments military
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References: SPAWAR San Diego, NPS, Field Tests by Military Contractors for US Army
deployments military
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• 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
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The Wireless Switch Stack Paradigm
Separate Contention Domains
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• Emulates Layer Two Switch Stack Architecture. (Scalable)• Dynamic Channel Management manages “insulation”.
Hub Switch
The Wireless Switch Stack Paradigm
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• Emulates Layer Two Switch Stack Architecture. (Scalable)• Dynamic Channel Management manages “insulation”.• Multiple Channels enables Local Interference Management
The Wireless Switch Stack Paradigm
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
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Minimal Performance DegradationOne Hop
Two Hops
Three Hops
22-23 Mbps TCP/IP
22-23 Mbps TCP/IP
22-23 Mbps TCP/IP
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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
22-23 Mbps TCP/IP
22-23 Mbps TCP/IP
One Hop
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Performance Degradation For Others
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Performance Degradation For Others
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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
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Video Surveillance with Mobile Node
Wired End Mobile Camera
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Douglas Station
Deployed Mobility Applications
Trunk Mounted Unit (Mobile Unit)
Douglas Arizona, SPAWAR San Diego/ DHS
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• 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.
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dynamics mesh
5GHz UPLINK
5GHz DOWNLINK
Modular Four Radio Configurations
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dynamics mesh
5GHz UPLINK
5GHz DOWNLINK2.4GHz AP
(2ND) 5GHz AP or
Mobility Scanner
Modular Four Radio Configurations
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…………VOIP
WIRELESSCLIENTS
Smart Outdoor Low Loss Extension Cable
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…………VOIP
WIRELESSCLIENTS
…………VOIP
Smart Outdoor Low Loss Extension Cable
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WIRELESSCLIENTS
…………VOIP
…………VOIP
…………VOIP
WIRELESSCLIENTS
WIRELESSCLIENTS
Smart Outdoor Low Loss Extension Cable
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Episodic and Mobile Networks
Connectivity within Cluster at all Times. (No root node is required)
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Excerpts from Video Web Cast at: www.meshdynamics.com/MDWebCasts.html
Hybrid Mesh
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Excerpts from Video Web Cast at: www.meshdynamics.com/MDWebCasts.html
Hybrid Mesh
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Connectivity within Cluster(No root node is needed)
Excerpts from Video Web Cast at: www.meshdynamics.com/MDWebCasts.html
Hybrid Mesh
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Connectivity within Cluster(No root node is needed)
Excerpts from Video Web Cast at: www.meshdynamics.com/MDWebCasts.html
Hybrid Mesh
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Connectivity within Cluster(No root node is needed)
Excerpts from Video Web Cast at: www.meshdynamics.com/MDWebCasts.html
Hybrid Mesh
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ROOT
A B
C
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
Connectivity within Cluster(No root node is needed)
Persistent VOIP Connectivity Within Clusters
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ROOT
Wired gateway access
. Other Mesh Networks
. PSTN via PBX
Only Phone with PSTN access
• As Mesh clusters coalesce, SIP registry is updated.• Client communication range and accessibility increases. .
Connectivity within Cluster(No root node is needed)
Persistent VOIP Connectivity Within Clusters
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ROOT
Wired gateway access
. Other Mesh Networks
. PSTN via PBX
Only Phone with PSTN access
• 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.
Persistent VOIP Connectivity Within Clusters
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Network Management System
Network TopologyNode Specific
Heart Beat Updates
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Network Management System
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One Network View, All products
One Network for 1,2,3 or 4 radio systems
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Radio and Platform Independence
802.11AP
BRIDGE
MESHALGORITHM
OS ABSTRACTION LAYER
SECURITYCOMPONENTS
NET DRV COUPLINGINTERFACE
OS
netdrv
ALL NETWORK DRIVERS FOR SPECIFIED OS
IMPLEMENT COUPLING TO INTERFACE W/ OS ABSTRACTION LAYER
RADIO H/W & OS PLATFORM INDEPENDENCE
Radio Specific Mappings
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MESHDYNAMICSNMS JAVA ENGINE
MESHDYNAMICS JAVA APPLICATION API
CUSTOMJAVA
APPLICATION
THIRDPARTY
ADAPTER
MESHDYNAMICSJAVASCRIPT APPLICATION
API
AUTOMATIONSCRIPTS
THIRDPARTY
APPLICATIONS
NMS Customization For OEMs
MESHDYNAMICS STANDARDNETWORK MANAGEMENT INTERFACE
CUSTOM NETWORK MANAGEMENT INTERFACE (Web View)
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NMS API Interface For OEMs
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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
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Parent Downlink RSSI (Mobility)
Custom Heartbeats Application
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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
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1
2
3
Remote Monitor/Management
Options:
. Stream Forwarding
. Query Forwarding
. Web View from Database Logs
. Adaptors for SNMP
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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: [email protected]
Thank you.
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PC1
PC2
PC3
PC4
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
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Aperiodic Sensor Update Request
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Packet Level Configuration
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Packet Level Rule Based Management
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Radio/Port Level Configuration
NMS self configures Dialog for Model Number
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RF Editor: Custom Channel Width, Frequency
Custom Channel Width
Custom Channel Frequency