• Cross-layer energy optimization under image quality constraints for wireless image transmissions 

      Yang, N.; Demirkol, Ilker Seyfettin; Heinzelman, W. (2012)
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      Wireless image transmission is critical in many applications, such as surveillance and environment monitoring. In order to make the best use of the limited energy of the battery-operated cameras, while satisfying the ...
    • Motion sensor and camera placement design for in-home wireless video monitoring systems 

      Yang, N.; Demirkol, Ilker Seyfettin; Heinzelman, W. (IEEE Press. Institute of Electrical and Electronics Engineers, 2011)
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      Motion sensors and cameras can be used together to build in-home video monitoring systems, where the cameras are only activated when the motion sensors detect motion. This saves both bandwidth (reduced video storage and/or ...
    • Token-MAC : a fair MAC protocol for passive RFID systems 

      Chen, Lichao; Demirkol, Ilker Seyfettin; Heinzelman, W. (IEEE, 2011)
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      Passive RFID systems typically utilize contention-based MAC protocols, such as the standard C1G2 protocol. While these protocols are easy to implement, they suffer from unfairness and low throughput. This paper proposes a ...