Ken,
Thank you so much for your detailed information.
I am new to TinyOS. Could you let me know how to measure the RSSI strength of
one packet based on TinyOS for MICA motes?
Chris
Ken Bannister <[EMAIL PROTECTED]> wrote: >> Could someone point out related
paper/data that shows the RSSI
>> propagation model in sensor networks?
>> that is, the function of RSSI received powers with distance between
>> two nodes?
>
> There is nothing special about propagation by sensor nodes -- it's a
> digital signal modulated in a certain way. So a book on wireless
> communications would be a good place to start [1-3].
>
> Having said that, there are some insightful papers from the sensor
> networking community. Zhao, Govindan [4] is widely cited as identifying
> the "gray region" where packet reception can vary widely. Zuniga,
> Krishnamchari [5] provides an analytical model. Srinivasan, et al. [6]
> performed extensive experiments with Telos/MicaZ motes.
>
> Good luck,
> Ken
>
>
> [1] A Goldsmith, Wireless Communications
> [2] TS Rappaport, Wireless Communications: Principles and Practice
> [3] W Stallings, Wireless Communications and Networking
> [4] J. Zhao and R. Govindan. Understanding packet delivery performance
> in dense wireless sensor networks. Proceedings of the first international
> conference on Embedded networked sensor systems, pages 113, 2003.
> [5] Marco Zuniga, Bhaskar Krishnamachari, "Analyzing the Transitional
> Region in Low Power Wireless Links", First IEEE International Conference
> on Sensor and Ad hoc Communications and Networks (SECON), Santa Clara,
> CA, October 2004.
> [6] K. Srinivasan, P. Dutta, A. Tavakoli, and P. Levis, "Understanding
> the Causes of Packet Delivery Success and Failure in Dense Wireless
> Sensor Networks," Stanford University Technical Report SING-06-00.
>
As for specific propagation models, I focus on outdoor networks. Most often
I read papers that reference either the log-normal shadowing model or the
two-ray/two-slope model. The paper below references those models and
provides plenty of empirical data.
T. Stoyanova, F Kerasiotis, A Prayati, G Papadopoulos.
Evaluation of impact factors on RSS accuracy for localization and tracking
applications. Proceedings of the 5th ACM international workshop on Mobility
management. 2007
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