Above: Key enablers, left to right: two-radio,
channel management, P3M mobility, and Disruption-Tolerance. (Click
Software Driven MeshTM
For the Industrial Internet
Meshdynamics has been talking about our multi-radio multi-channel wireless mesh
networks since 2002 but there is confusion about what "multi-radio" means,
and why Meshdynamics' patented tree-based framework sets us apart. Three take
The inability of single radio backhauls to simultaneously transmit and
receive is a serious disadvantage. If a node cannot send and receive at
the same time, it loses ½ of its bandwidth as it attempts to relay packets up
and down the backhaul path. A loss of ½ with each hop implies that after 4 hops,
a user would be left with (½*½*½*½) = 1/16 of the bandwidth available at the
Ethernet link: 1/(2H
) relationship defines
the fraction of the throughput and
real time response after 4 hops, More
Our nodes connect as logical branches of a tree. As in
Nature, a tree based routing is scalable,
efficient and deterministic. Trees are
inherently self healing.
of a branch, does not cripple the entire network.
Our mesh nodes manage branches of the wireless network "tree", with
added features to support mobility, diverse transceivers etc.
A distributed control system, running on each "node", manages
health of the network and clients. Nodes and enterprise "apps"
running on the mesh nodes, communicate through periodic "heart
beats". This heart beat system supports publish and subscribe mechanisms for real time sensor
and control data streams. Exemplary source code for 80211.ac
radios provided with customization support for
licensee-specific radios, protocols and specialized use cases.
Overview of Technology Portfolio
"Leaky" pipes are endemic to all forms of wireless communication. Performance
degrades with distance. The pipe "insulation" is affected by
. Yet, this pipe is expected to provide
equivalent wired performance. This is especially true of
essential to scalable
Seminal work in Oct 2002
depicted how "hop" and "toll" costs
- at each node - changes network tree topology to meet diverse
application needs. Fig 18
is an exemplary
embodiment with a two-radio backhaul to create separate BSS.
segment the collision domain
in the RF Space, improving multi-hop performance.
Further improvements for real time sensitive messaging is taught
Managing latency and jitter
Self Forming VOIP
Mobile and temporal networks
(2010) address mobility
(2012) reduces "collision" in
(2014) focus on time sensitive messaging
for industrial mesh
for rapid tree
topology reversals. Unpublished work includes military level security, re-configurable mesh nodes
for disruption tolerance and single radio limitations first described as "Ugly
" in 2004.
Key Embodiments of Technology.
(Click on links below for more)
Structured MeshTM: Benefits over non-tree mesh networking architectures.
This paper analyses in detail how with merely 5
simultaneous clients per mesh node, both the single radio ad
hoc and the dual-radio, single radio mesh architectures
cannot provide usable bandwidth (for voice/video) beyond 2
hops and the implications of these limitations.
: Radio and Protocol Agnostic
Routing Control, Future Proof By Design.
Scalable software techniques mandate a level of device
abstraction - Object Oriented programming .Our Open Source
centric approach is intentionally radio &
This accelerates product development
for our OEM source code licensees.
P3MTM : Persistent 3rd Generation Mobile Connectivity for military, mining.
multi-radio backhaul nodes were set up in a
one-mile test course along a public road, simulating a
railroad right-of-way. The automobile was driven in repeated passes
along the simulated railroad right-of-way at speeds of 55-60
PBVTM : Persistent
Providing base network services for time sensitive messaging
in a disruption tolerant networks
: Real Time, Efficient Traffic Flow Across Network
Moving small, periodic M2M or VOIP packets through the
wireless mesh network requires special concatenation techniques to ensure
low latency and jitter performance.
: Software Driven MeshTM
Networking. Source code for Industrial Mesh Networks and
Industrial Internet OEMs.
Collateral: US Government Sponsored Validations
US Air Force
concur: Meshdynamics provides the best throughput, latency through our
patented dynamic channel allocation, tree-based
mesh topology management and mobile network support.
Below: Links to Performance
Mobility Field Test Effistream