1. Submission Title: [Preamble Selection Criteria]
8 December 2018
July 2005
Project: IEEE P Working Group for Wireless Personal Area Networks (WPANs)
Submission Title: [Preamble Selection Criteria]
Date Submitted: [21 July 2005]
Source: [Zafer Sahinoglu, Mitsubishi Electric]
Contact: Zafer Sahinoglu
Voice:[ ,
Abstract: [This document highlights the technical reasoning of the selected preamble form]
Purpose: [Informative]
Notice: This document has been prepared to assist the IEEE P 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 P

2. Performance Comparison Reasoning to select Ternary for preamble?
July 2005
Outline
Proposed waveforms
Performance Comparison
Reasoning to select Ternary for preamble?

3. Option-III (Ternary Sequences)
July 2005
Evaluated Waveforms
Option-I (Burst PPM)
Always Empty
Always Empty
Always Empty
24ns
512ns
Option-III (Ternary Sequences)
Pulse Repetition Interval ~ 62.5ns 1 2 3 4 5 6 7 8 30 31
…………………………
Option-IV (Pulse OOK)
PRP ± TH
Tp = 4ns
Tf = ~125ns

4. Ranging Simulation Results
July 2005
Ranging Simulation Results
I2R Statements
Based on 4ns energy window
3ns 90% confidence level around 11dB for Burst-PPM
3ns 90% confidence level around 10dB for Ternary
Ternary performed the best both in terms of 3ns confidence level and mean absolute error (MAE)
MERL Statements
3ns 90% confidence level around 15dB for Burst-PPM
3ns 90% confidence level around 15dB for Pulse-OOK
Burst-PPM performed the best both in terms of 3ns confidence level and mean absolute error (MAE)

5. Preamble Waveform Selection
July 2005
Preamble Waveform Selection
On July 20th, 2005, in the evening session of the modulation sub-group, ternary sequences are selected to form the preamble waveform, despite equal ranging performance
Approval was unanimous
Clear technical reasoning has not been provided publicly
This document is prepared to fill this gap

6. Technical Reasons to Approve Ternary Waveform for Preamble
July 2005
Technical Reasons to Approve Ternary Waveform for Preamble
Inefficient spectral characteristics of the burst signal waveform ?