Propagation and Throughput Study for 802.16 Broadband Wireless Systems at 5.8 GHz - PowerPoint PPT Presentation

propagation and throughput study for 802 16 broadband wireless systems at 5 8 ghz n.
Download
Skip this Video
Loading SlideShow in 5 Seconds..
Propagation and Throughput Study for 802.16 Broadband Wireless Systems at 5.8 GHz PowerPoint Presentation
Download Presentation
Propagation and Throughput Study for 802.16 Broadband Wireless Systems at 5.8 GHz

play fullscreen
1 / 9
Propagation and Throughput Study for 802.16 Broadband Wireless Systems at 5.8 GHz
138 Views
Download Presentation
erica
Download Presentation

Propagation and Throughput Study for 802.16 Broadband Wireless Systems at 5.8 GHz

- - - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript

  1. Propagation and Throughput Study for 802.16 Broadband Wireless Systems at 5.8 GHz Thomas Schwengler & Niranjan Pendharkar

  2. Radio Description • Latest revision of MAN, IEEE 802.16-2004. • OFDM - 256 FFT with variable rate coding as well as modulation capabilities. • Line Of Sight, Near-Line of Sight operation. • Multiple access granted via time slots.

  3. Lab Testing • Radio performance tested on fixed SUI models. • High PAPR of OFDM signals present emulator tuning problems. • True WiMAX with 2048 sub-carriers may present even greater problem…

  4. Ethernet Traffic Generator BS Spirent SR5500 circulator PAD Ch. 1 Ch. 2 Air Interface Antenna SU SU SU SU Ethernet

  5. Urban Testing • True field tests without fading emulator, circulators, etc. • BS positioned atop a building (13 floors), SU’s placed 6-ft above ground at different locations in suburban area of Denver. • On-demand modulation.

  6. Results – Lab Tests • Throughput for 16-QAM modulation in SUI-1 and SUI-3 channels.

  7. Observation • Average throughput is almost constant despite differences in statistical behavior of various channels.

  8. Results – Field Tests • Statistical comparison of results in SUI-1 & SUI-3 channels in lab, and field tests.

  9. Observation • Throughput performance comparison for several modulation schemes in different fading environments