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The OpenWSN project serves as a repository for open-source implementations of protocol stacks based on Internet of Things standards, using a variety of hardware and software platforms.

Motivation

The Internet of Things enables great applications, such as energy-aware homes or real-time asset tracking. With these networks gaining maturity, standardization bodies have started to work on standardizing how these networks of tiny devices communicate.

The goal of the OpenWSN project is to provide open-source implementations of a complete protocol stack based on Internet of Things standards, on a variety of software and hardware platforms. This implementation can then help academia and industry verify the applicability of these standards to the Internet of Things, for those networks to become truly ubiquitous.

Open Source

Our OpenWSN effort at UC Berkeley is one of many open source hardware and software projects for wireless sensor networks. Here are links to some of our friends and colleagues around the world.

 

Protocol Stack

The standards under development most applicable for the Internet of Things are:

  • The IEEE802.15.4e standard defines MAC amendment to the existing IEEE802.15.4-2011 standard. One mode, called Time Synchronized Channel Hopping, significantly increases robustness against external interference and persistent multi-path fading, while running on legacy IEEE802.15.4 hardware.
  • The IETF 6TiSCH working groups standardizes mechanisms of running an IPv6-enabled protocol stack on top of IEEE802.15.4e TSCH.
  • The IETF 6LoWPAN working group has standardized a mechanism for an IPv6 packet to travel over networks of devices communicating using IEEE802.15.4 radios; this includes header compaction techniques to fit long IPv6 headers into short IEEE802.15.4 frames.
  • The IETF ROLL working group has standardized the RPL routing protocol, i.e. the distributed algorithm which finds the multi-hop path connecting the nodes in the network with a small number of destination nodes.

These standards can be layered one on top of another, forming the following protocol stack:

application

CoAP, HTTP

transport

UDP, TCP

IP/routing

IETF RPL

adaptation

IETF 6LoWPAN

medium access

IEEE802.15.4e

phy

IEEE802.15.4-2006

Latest Blog Posts

Overview Talk
6TiSCH IETF89 plugfest
tun is a handy little thing which allows you to write an application which emulates a physical interface. That is, when your kernel sends IP packets to this "virtual" interface, it's your application that receives them, not some piece of hardware. Similarly, your application can inject IP packets into the kernel as if they came from a regular (e.g. Ethernet) interface. While tun comes standard with Linux, it's often considered hard to use under Windows.…
At OpenWSN, we encourage contributions from users. In fact, our complete infrastructure is built to make contributing easy and fast: you can fork one of our GitHub repositories and start working right away. you can sign up for an account into our system. Just contact us to get privileges. One very nice new feature of JIRA is the ability to attach labels to issue. We attach the label project_idea to features we'd like to have, but which is not immediately schedule.…

Activity Stream

License

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1 Comment

  1. The project is so excellent!  It is better than any book or paper to study WSN.