Spatiotemporal Focusing of Phase Compensation and Time Reversal in Ultrawideband Systems with Limited Rate Feedback

The authors investigate the performance of phase compensation (PC) and time reversal pre-equalizers in multipath indoor channels when a quantized version of the channel state information (CSI) is available at the transmitter side. The authors conduct a comprehensive experimental study to assess their spatial and temporal focusing as a function of the number of quantization levels over the frequency band of 2–12 GHz. To characterize multipath compression performance, root-mean-square (RMS) delay spread and peak-to-average power ratio (PAPR) are calculated for different numbers of quantization levels. Bit error rate (BER) curves have been simulated for data rates in the range of 125–4000 Mb/s based on the measured channel responses. To assess spatial focusing, the authors investigate the decay of the received response peak power as there is a move away from the intended receiver. The study suggests that for the same feedback rate, PC has considerably superior performance in suppressing multipath dispersions and focusing the transmitted energy at the intended receiver.

• Record URL:
  • https://doi.org/10.1109/TVT.2015.2420633
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/00189545
• Supplemental Notes:
  • Abstract reprinted with permission of IEEE.
• Authors:
  • Dezfooliyan, Amir
  • Weiner, Andrew M
• Publication Date: 2016-4

Language

• English

Media Info

• Media Type: Web
• Features: References;
• Pagination: pp 1998-2006
• Serial:
  • IEEE Transactions on Vehicular Technology
  • Volume: 65
  • Issue Number: 4
  • Publisher: Institute of Electrical and Electronics Engineers (IEEE)
  • ISSN: 0018-9545
  • Serial URL: http://ieeexplore.ieee.org/xpl/mostRecentIssue.jsp?punumber=25

Subject/Index Terms

• TRT Terms: Delays; Errors; Multipath transmission; Phase transitions; Transceivers
• Subject Areas: Data and Information Technology; Highways;

Filing Info

• Accession Number: 01598024
• Record Type: Publication
• Files: TRIS
• Created Date: Apr 28 2016 2:47PM