Wireless mesh network: Difference between revisions

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* [[Zigbee]] digital radios are incorporated into some consumer appliances, including battery-powered appliances. Zigbee radios spontaneously organize a mesh network, using specific routing algorithms; transmission and reception are synchronized. This means the radios can be off much of the time, and thus conserve power. Zigbee is for low power low bandwidth application scenarios.
* [[Thread (network protocol)|Thread]] is a consumer wireless networking protocol built on open standards and IPv6/6LoWPAN protocols. Thread's features include a secure and reliable mesh network with no single point of failure, simple connectivity and low power. Thread networks are easy to set up and secure to use with banking-class encryption to close security holes that exist in other wireless protocols. In 2014 Google Inc's [[Nest Labs]] announced a working group with the companies [[Samsung]], [[ARM Holdings]], [[Freescale]], [[Silicon Labs]], [[Big Ass Fans]] and the lock company [[Yale (company)|Yale]] to promote Thread.
* In early 2007, the US-based firm [[Cisco Meraki|Meraki]] launched a mini wireless mesh router.<ref>{{cite web|title=Meraki Mesh |url=http://meraki.com/oursolution/mesh/ |publisher=meraki.com |access-date=2008-02-23 |archive-url=https://web.archive.org/web/20080219155800/http://meraki.com/oursolution/mesh/ |archive-date=2008-02-19 |url-status=dead }}</ref> The [[802.11]] radio within the Meraki Mini has been optimized for long-distance communication, providing coverage over 250 metres. In contrast to multi-radio long-range mesh networks with tree-based topologies and their advantages in O(n) routing, the Maraki had only one radio, which it used for both client access as well asand backhaul traffic.<ref>{{cite web|title=Muni WiFi Mesh Networks|url=http://www.belairnetworks.com|publisher=belairnetworks.com|access-date=2008-02-23|url-status=dead|archive-url=https://web.archive.org/web/20080302021635/http://www.belairnetworks.com/|archive-date=2008-03-02}}</ref> In 2012, Meraki was acquired by Cisco.
* The [[Naval Postgraduate School]], Monterey CA, demonstrated such wireless mesh networks for border security.<ref>{{cite web|title=Optimum Antenna Configuration for Maximizing Access Point Range of an IEEE 802.11 Wireless Mesh Network in Support of Multimission Operations Relative to Hastily Formed Scalable Deployments |url=http://www.meshdynamics.com/documents/NPS_MD_FieldTest_1.pdf |author=Robert Lee Lounsbury Jr. |access-date=2008-02-23 |url-status=dead |archive-url=https://web.archive.org/web/20110410055500/http://www.meshdynamics.com/documents/NPS_MD_FieldTest_1.pdf |archive-date=April 10, 2011 }}</ref> In a pilot system, aerial cameras kept aloft by balloons relayed real time high resolution video to ground personnel via a mesh network.
* [[SPAWAR]], a division of the US Navy, is prototyping and testing a scalable, secure Disruption Tolerant Mesh Network <ref>{{cite web|title=Disruption Tolerant Mesh Networks|url=http://www.meshdynamics.com/documents/MeshDynamicsDisruptionTolerantNetworks.pdf|url-status=live|archive-url=https://web.archive.org/web/20170517123148/http://meshdynamics.com/documents/MeshDynamicsDisruptionTolerantNetworks.pdf|archive-date=2017-05-17}}</ref> to protect strategic military assets, both stationary and mobile. Machine control applications, running on the mesh nodes, "take over", when Internet connectivity is lost. Use cases include [[Internet of Things]] e.g. smart drone swarms.