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projects:camrit [2009/02/12 23:53]
gsmith28
projects:camrit [2015/03/09 17:18]
xuz
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-====== CAMRIT ====== 
-===== Control-based Adaptive Middleware for Real-Time Image Transmission ===== 
-Real-time image transmission is crucial to an emerging class of distributed embedded systems operating in open network environments. Examples include avionics mission re-planning over Link-16, security systems based on wireless camera networks, and online collaboration using camera phones. Meeting image transmission deadlines is a key challenge in such systems due to unpredictable network conditions. In this paper, we present CAMRIT, a Controlbased Adaptive Middleware framework for Real-time Image Transmission in distributed real-time embedded systems. CAMRIT features a distributed feedback control loop that meets image transmission deadlines by dynamically adjusting the quality of image tiles. We derive an analytic model that captures the dynamics of a distributed middleware architecture. A control theoretic methodology is applied to systematically design a control algorithm with analytic assurance of system stability and performance,​ despite uncertainties in network bandwidth. Experimental results demonstrate that CAMRIT can provide robust real-time guarantees for a representative application scenario. 
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-==== Related Papers ==== 
-Xiaorui Wang, Huang-Ming Huang, Venkita Subramonian,​ Chenyang Lu, and Christopher Gill, "​[[http://​www.ece.utk.edu/​~xwang/​papers/​rtas04_camrit.pdf|CAMRIT:​ Control-based Adaptive Middleware for Real-time Image Transmission]],"​ IEEE Real-Time and Embedded Technology and Applications Symposium (RTAS 2004) Toronto, Canada, May 2004. 
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-==== Download ==== 
-CAMRIT is open-source software. You are welcome to download the current release of CAMRIT 1.0: 
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-    * Source code: [[http://​www.ece.utk.edu/​~xwang/​RTES/​CAMRIT/​CAMRIT.tar.gz|CAMRIT 1.0]] 
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-To install CAMRIT, you need to 
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-    * [[http://​www.cs.wustl.edu/​~schmidt/​ACE.html|Install and build ACE/TAO]] 
-    * [[http://​www.ece.utk.edu/​~xwang/​RTES/​CAMRIT/​README.pdf|Install and build CAMRIT]] 
-==== Contact ==== 
-For more information,​ please email [[people:#​dr._wang|Prof. Xiaorui Wang]]. This project is a collaborated work with Prof. Chenyang Lu and Prof. Christopher Gill at Washington University in St. Louis. ​ 
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