Above: Key patented enablers, left to right: two-radio,
channel management, P3M mobility, and Disruption-Tolerance.
"Sustainable, Future-Proof, Industrial Mesh Networks"
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,
see Figure 1. More
Meshdynamics' 16 year technology expertise includes multi-radio mesh
networking, extremely lightweight Internet of Things (IoT)
protocols for simple devices, and Software-Defined Networking capabilities for IoT and
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". The heart beat framework also
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 Patent Portfolio
Unlike wired networks, all wireless communications suffer from
performance degradation over distance. This is endemic to the nature
of wireless and applies to all radios frequencies and protocols. The
mother patent explains why a dynamic compromise between throughput
and latency, (see "toll-cost" and "hop-cost" in patents)
drives the topology supporting multiple clients with diverse needs
in any multi-hop wireless network.
Paradigm minimizes bridge latency, with
one embodiment. Logical Radio
concepts support both single and
multiple physical radios. Continuations of the core themes include
for latency sensitive messaging (VOIP, Video), Application
level routing etc.
Seminal work filed in
depicted (in simulation) how "hop" and "toll" costs
- at each node - changes network tree topology to meet diverse
(and possibly conflicting) backhaul, AP and client/station needs.
is an exemplary two-radio backhaul tree with dynamic
channel allocation to segment the collision domain.
Managing latency and jitter
for time sensitive packet
streams (e.g. VOIP,M2M) was filed in 2005,
Mobile and temporal network
formation for clusters in
learns application schedules and then
advises shifts to reduce "stacking".
engender disruption tolerant, logical-radio
. for IOT.
Work in progress includes military level security for IOT, re-configurable multi-radio chipsets and solutions
addressing MANET single radio limitations, first described as "Ugly
" in 2004 and based on this
Key features of validated
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.
Collateral: US Government Sponsored Field Test 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.
Rethinking Tree Topologies Self Classification With Chirps