1. Project: IEEE 802.15 Study Group for Wireless Personal Area Networks (WPANs)
Submission Title: [SFD Design]
Date Submitted: [June 2006]
Source: [Zafer Sahinoglu]:
Company1 [Mitsubishi Electric Research Labs, Inc.]
Address [201 Broadway, 8th floor, Cambridge, MA 02139]
Voice: [(617) ]
Re: [ a]
Abstract: []
Purpose: [discuss SFD design options]
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. Objective There are two SFDs
Short SFD for the high data rate option
Long SFD for the low data rate option
Long SFD is redesigned because it was broken in D2 (Thanks to Vern and Francois)
There is still a very large margin to improve the long SFD

3. The SFD in D3: SFD-B SFD B SS #1 SS #1 SS #3 SS #2 SS #4 SS #3 SS #4

4. Correlation Properties of SFD-B
SS #1
SS #2
SS #4
SS #3
SFD B
SS #1 = [ ]
SS #2 = [ ]
SS #3 = [ ]
SS #4 = [ ]
Coherent Side-lobe: 9
SFD-B
SFD-B
Non-Coherent side-lobe: 12
|SFD-B|
2*|SFD-B|-1

5. Recommended SFD Sequences
SFD Z
SFD F

6. Detection Performance

7. Detection Performance

8. Comparison Table {-6, +4} {-8,+5} {-7, +6} {-7,+5} {-1,+1} {-2,+1}
Autocorrelation side-lobes of the LONG SFD
Code Type
Side-lobe (Coherent)
Side-lobe (Non-Coherent)
{-6, +4}
{-8,+5}
SFD-Z
{-7, +6}
{-7,+5}
SFD-F
Autocorrelation side-lobes of the Short SFD
Code Type
Side-lobe (Coherent)
Side-lobe (Non-Coherent)
{-1,+1}
{-2,+1}
SFD-Z
{-1,+1}
{-2,+1}
SFD-F

9. Summary
Suggestion
Adopt SFD Z or F as the long SFD in IEEE for the low data rate option
Adopt the first 8 bits of the SFD Z or F as the short SFD for the high data rate option