Pathloss propagation model comparison

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Project IEEE P802.15 Working Group for Wireless
Personal Area Networks (WPANs) Submission Title
Propagation Pathloss Model Comparison for TG4
Range Issue Date Submitted 6 September
2004 Source Colin Lanzl Address 83 Nottingham
Drive, Nashua, NH 03062 Voice 781-687-0578,
FAX[phone], E-Mail clanzl_at_ieee.org Re
Indoor Pathloss model Comparison for
TG4. Abstract This document presents some indoor
pathloss models. Purpose This document is
provided in support of TG4a activities. Notice Th
is document has been prepared to assist the IEEE
P802.15. It is offered as a basis for discussion
and is not binding on the contributing
individual(s) or organization(s). The material in
this document is subject to change in form and
content after further study. The contributor(s)
reserve(s) the right to add, amend or withdraw
material contained herein. Release The
contributor acknowledges and accepts that this
contribution becomes the property of IEEE and may
be made publicly available by P802.15.
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Indoor Pathloss Model Comparison

• Colin Lanzl clanzl_at_ieee.org
• Kai Siwiak k.siwiak_at_ieee.org

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Two-breakpoint Model, with recommended parameters

• PL(d ) -10logc/(4pdfm)2 1-exp(-(dt1
  /d)g-2)1-exp(-(dt2/d)?2- ?1,
• where
• PL pathloss, dB
• d distance between transmitter and receiver
• fm geometric mean of transmitted frequency
  band
• g1 propagation constant after first
  breakpoint (3.7)
• g2 propagation constant after second
  breakpoint (10.5)
• c velocity of propagation
• dt1 first breakpoint distance from
  transmitter (5 meters)
• dt2 second breakpoint distance from
  transmitter (30 meters).

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Loss-per-meter Model, with recommended parameters

• PL(d ) -10logc/(4pdfm)2 ?d,
• where
• PL pathloss, dB
• d distance between transmitter and receiver
• fm geometric mean of transmitted frequency
  band
• ? loss-per-meter parameter (0.56dB per
  meter)
• c velocity of propagation.

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Comparison of Indoor Path Loss Models