[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[IPFIX] New draft about IPFIX for Wireless Sensors
Dear members,
as you can see on the working group site. A new draft called
draft-schmitt-6lowapp-ipfix-ws-00.txt was added. This draft deals with
IPFIX for Wireless Sensors. Zach Shelby motivated us to write an
IETF-Draft about our work on applications above 6LoWPAN.
Abstract
In this draft we want to introduce an idea to develop a protocol for
efficient data transmission for Wireless Sensors using the ideas of
IPFIX. We will call this protocol IPFIX-WS.
Introduction
Today everyone calls for new approaches for data acquisition in
real-time. Different challenging requirements must be solved, such as
efficient collection of environmental data using Wireless Sensors and
efficient data transmission due to hardware limitations. Constraints on
size, energy consumption and price lead to very limited memory,
computational and communications resources. The desire for sensor nodes
to be operational for a long time without external intervention, such as
exchange of the batteries, which are often the only source of energy,
leads to additional restrictions in the usage of the resources. Some
research is done to address the issue of the sole dependency on battery
power, but for now it remains the prevalent source of energy for WSNs.
The physical size of a sensor node is another limiting factor. The IRIS
mote which is used in our setup has the dimensions of 58 x 32 x 7 mm,
without the battery pack. Thus it does not leave much room for the micro
controller, flash memory (128 kb) and RF transceiver, all of which are
located on this board.
To satisfy those needs, standard protocols for efficient data
transmission from common networks, such as the IP Flow Information
Export (IPFIX) protocol, should be adapted to the equipment of Wireless
Sensors. Another possibility is to reduce the data amount by
implementing in-network data aggregation functionality. The most
important thing is to develop these approaches while still providing
interoperability between devices of different vendors.
Feel free to read the draft and make comments.
Regards,
Corinna Schmitt
--
Corinna Schmitt, Dipl.-Inf. (Bioinf.)
Technische Universität München
Chair for Network Architectures and Services (I8)
Boltzmannstr. 3
85748 Garching b. München
Germany
Phone.: +49 (0)89 289 18005
Email: schmitt at net.in.tum.de
http://www.net.in.tum.de/~schmitt/