Joint Communication/MTT/APS Society Meeting


Speaker:

Scott M. Yano

Subject:

"Investigating the UWB Indoor Wireless Channel"

Date:

Wednesday Oct. 24, 2001

Time:

11:00 a.m.

Place:

Piccadilly Restaurant at Madison Square Mall

Reservations:

Please contact Sonya Hutchinson at 544-3312, if you plan to attend. You may also email her at: Sonya.Hutchinson@msfc.nasa.gov.

Abstract: The indoor propagation channel appears considerably differently to ultra-wideband (UWB) wireless systems than it does to narrowband sine wave systems. UWB impulses are short and generally don’t overlap like multipath sine waves. This talk will present the results of measurements made on the UWB indoor propagation channel. New details about the characteristics of the propagation channel are revealed. The channel impulse response (CIR) of the UWB propagation channel is extracted from the measurements using a frequency domain deconvolution technique. Due to the wide bandwidth of the pulses, the CIR has nanosecond resolution. From the CIR, the excess path loss and RMS delay spread of the UWB propagation channel are calculated. In addition, we note that because the UWB system can resolve the CIR to fine detail, total power received measurements show inverse square law propagation indoors, rather than inverse third power behavior for the average power in a narrowband system.

Biographical Sketch: Mr. Yano’s main focus is developing the system performance of the PulsON radio modules and examining UWB propagation issues. Before joining Time Domain, he was a Senior Technical Associate with Lucent Technologies’ Wireless Research Laboratory, conducting electromagnetic simulation studies and wideband transmission line experiments. Earlier, Mr. Yano was a student research assistant designing experimental communication systems and conducting electromagnetic field theory studies for Ohio State University’s Electroscience Lab. He was also a research intern with the Battelle Memorial Institute, working on circuit design and fabrication and conducting technical research for experimental projects. Mr. Yano holds an M.S. in Electrical Engineering and a B.S. in Electrical and Computer Engineering from Ohio State University.

NOTES:

  1. We will eat from 11:00 - 11:45am and the talk will begin at 11:45am. All lunch will be Dutch treat. The price for lunch is about $5.95 (cost subject to food selection), and there is a $1 meeting fee for all participants.

  2. Picadilly Cafeteria, formerly Morrison's, is in Madison Square Mall.

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