Now showing items 1-10 of 10

  • Development of Digital Signal Processor controlled Quantum Cascade Laser based Trace Gas Sensor Technology 

    So, Stephen; Wysocki, Gerard; Frantz, Patrick; Tittel, Frank K. (2006-08-01)
    This work reports the design and integration of a custom digital signal processor (DSP) system into a pulsed quantum cascade laser (QCL) based trace gas sensor to improve its portability, robustness and operating performance. ...
  • Development of Japanese-language DSP Education Content in the Connexions Project 

    Frantz, Patrick; Yamada, Yoji (2005-10-01)
    Due to factors such as a small and fragmented market and rapid hardware development, the conventional textbook is inadequate for DSP lab education. Freely available open-content materials that enable and promote local ...
  • A Fast Algorithm and Testbed Evaluation for Sound Source Localization Using Sensor Networks 

    Johnston, Brian; Yin, Xiaoming; Valenzuela, Adrian; Frantz, Patrick (2005-09-01)
    The theoretical idea of a network composed of small, low-cost sensor nodes able to localize the source of acoustic events has the potential to make a multitude of exciting applications possible. However, this potential can ...
  • 802.11b Operating in a Mobile Channel: Performance and Challenges 

    Steger, Christopher; Radosavljevic, Predrag; Frantz, Patrick (2003-09-20)
    In the past, the worlds of wireless voice and data transmission have been largely disjoint. Voice traffic has been carried over circuit-switched cellular links, and data has been largely restricted to packet-switched ...
  • DSP Education At Rice University 

    Frantz, Patrick; Choi, Hyeokho; Baraniuk, Richard G. (2003-09-01)
    Rice University has a decades-long tradition of both digital signal processing (DSP) research and education, beginning in 1968. Since that time, Rice University has become a world leader and continued to be a pioneer in ...
  • GNOMES: A Testbed for Low-Power Heterogeneous Wireless Sensor Networks 

    Welsh, Erik; Fish, Walt; Frantz, Patrick (2003-05-20)
    Continuing trends in sensor, semiconductor and communication systems technology (smaller, faster, cheaper) make feasible very dense networks of fixed and mobile wireless devices for use in many different sensing and ...
  • A DSP-Based Platform for Wireless Video Compression 

    Murphy, Patrick; Bharadwaj, Vinay; Welsh, Erik; Frantz, Patrick (2002-11-01)
    With the exponential growth of wireless voice markets, demand for wireless video services is soon to follow. However, bandwidth limited wireless channels coupled with mobility issues pose a great challenge in the hardware, ...
  • A Mobile Testbed for GPS-Based ITS/IVC and Ad Hoc Routing Experimentation 

    Welsh, Erik; Murphy, Patrick; Frantz, Patrick (2002-10-01)
    Past investigations into the formation of ad hoc networks and ad hoc routing have focused on computer simulations of mobile traffic. However, the proliferation of mobile electronic devices (mobile phones, PDAs, and laptop ...
  • A Prototype Platform for a Multitier Network Interface Card (mNIC) 

    Frantz, Patrick (2002-09-20)
    The Center for Multimedia Communication at Rice University has developed a hardware testbed for multitier wireless environments. These types of environments incorporate many diverse wireless standards, such as 802.11 and ...
  • White Paper on IEEE 802.11b Mobile Channel Modeling 

    Steger, Christopher; Radosavljevic, Predrag; Frantz, Patrick (2002-04-20)
    Researchers from Rice Universityâ s Center for Multimedia Communications (CMC) recently conducted experiments with the goal of understanding and quantifying the effects of various channel effects on an 802.11b link. In ...