Now showing items 1-3 of 3

    • BaNa: a noise resilient fundamental frequency detection algorithm for speech and music 

      Yang, Na; Ba, He; Cai, Weiyang; Seyfettin Demirkol, Ilker; Heinzelman, Wendi (2014-08-27)
      Article
      Open Access
      Fundamental frequency (F0) is one of the essential features in many acoustic related applications. Although numerous F0 detection algorithms have been developed, the detection accuracy in noisy environments still needs ...
    • Passive wake-up radios: from devices to applications 

      Ba, He; Seyfettin Demirkol, Ilker; Heinzelman, Wendi (Elsevier, 2013-11)
      Article
      Restricted access - publisher's policy
      Energy efficiency is one of the most important criteria in the design of a wireless sensor network. Sensor nodes are usually battery-powered and thus have very limited lifetime. In this paper, we introduce a novel passive ...
    • Range extension of passive wake-up radio systems through energy harvesting 

      Chen, Li; Cool, Stephen; Ba, He; Heinzelman, Wendi; Seyfettin Demirkol, Ilker; Muncuk, Ufuk; Chowdhury, Kaushik Roy; Basagni, Stefano (Institute of Electrical and Electronics Engineers (IEEE), 2013)
      Conference report
      Restricted access - publisher's policy
      Use of a passive wake-up radio can drastically increase the network lifetime in a sensor network by reducing or even completely eliminating unnecessary idle listening. A sensor node with a wake-up radio receiver (WuRx) can ...