1. 4/11/2019
Project: IEEE P Working Group for Wireless Personal Area Networks (WPANs)
Submission Title: [modulation summary for TG4a]
Date Submitted: [2 August 2005]
Source: [Ismail Lakkis] Company [Wideband Access, Inc.]
Voice:[ ],
Abstract: [Modulation options for TG4a]
Purpose: [Assist the group in the selection of a modulation scheme]
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
Ismail Lakkis (Wideband Access, Inc.)

2. 4/11/2019
Options I, II, III & IV
Options I, II, III & IV are the result of collaboration with:
Ismail Lakkis Wideband Access Inc.
Saeid Safavi Wideband Access Inc.
Andy Molisch Mitsubishi Electric
Philip Orlik Mitsubishi Electric
Zafer Sahinoglu Mitsubishi Electric
Matt Welborn Freescale Semiconductor
Shahriar Emami Freescale Semiconductor
Francois Shin I2R
Michael Mc Laughlin decaWave
Ryuji Khono NICT
Vern Berthour Time Domain Corp.
Ismail Lakkis (Wideband Access, Inc.)

3. Bipolar & Ternary Scrambling
4/11/2019
Bipolar & Ternary Scrambling
Ismail Lakkis (Wideband Access, Inc.)

4. 4/11/2019
Modulation Options
Ismail Lakkis (Wideband Access, Inc.)

5. Bipolar Burst & Burst PPM
4/11/2019
Bipolar Burst & Burst PPM
Average PRF = MHz  Average PRI = ns
Target data rate (before FEC) = Mbps
Target data rate (after FEC) = Mbps
bit duration = ns
number of pulses per bit for a 1.93 MHz data rate = 8 ON pulses
Ismail Lakkis (Wideband Access, Inc.)

6. 4/11/2019
Option I
Ismail Lakkis (Wideband Access, Inc.)

7. 4/11/2019
Option II
Ismail Lakkis (Wideband Access, Inc.)

8. 4/11/2019
Option III
Ismail Lakkis (Wideband Access, Inc.)

9. 4/11/2019
Option IV
Ismail Lakkis (Wideband Access, Inc.)

10. Option X = Option III + Specific FEC
4/11/2019
Option X = Option III + Specific FEC
Ismail Lakkis (Wideband Access, Inc.)

11. 4/11/2019
Receiver Structure
Ismail Lakkis (Wideband Access, Inc.)

12. 4/11/2019
Option V (NICT)
Joint optimization of spreading rate and SOC rate (Super-Orthogonal Convolutional code)
Improved performance over spreading followed by rate ½ convolutional code ?
Ismail Lakkis (Wideband Access, Inc.)

13. Option VI: STM Time-Hopping (TH) Impulse Radio (IR) Flexible receiver:
4/11/2019
Option VI: STM
Time-Hopping (TH) Impulse Radio (IR)
Flexible receiver:
Non-coherent (PPM)
Coherent (PPM + BPSK)
Extension: Diff. coherent (PPM + DBPSK) Ts Tc Tf +1 -1
Ismail Lakkis (Wideband Access, Inc.)

14. Option VI: STM System Parameters Frame levels (Nf) = 16
4/11/2019
Option VI: STM
System Parameters
Frame levels (Nf) = 16
Guard time/frame (Tg) = 14Tc = 28 ns
TH sequence length (LPN) = 8
PN sequence (used in simulations) = [1,-2,3,-4,-2,3,-5,1]
Symbol time (Tg + Nf *Tc) * LPN = ns
Ismail Lakkis (Wideband Access, Inc.)

15. Option VII-VIII-IX PRFpeak (MHz) Coherent Non-Coherent (Option VII)
4/11/2019
Option VII-VIII-IX
PRFpeak
(MHz)
Coherent
Non-Coherent
(Option VII)
(Option VIII)
(Option IX)
30.875
Same as Option II
2 coded bit / 32 chip
(4-ary 32-TOK sequence)
4 info. bit / 128 chip
(based on 16-ary 32-TOK sequence)
(based on 16-ary 127-TOK sequence)
61.75
Not Applicable
4 info. bit / 256 chip
247
4 info. bit / 1024 chip
Ismail Lakkis (Wideband Access, Inc.)

16. PBTS Seq #1 1 zero padding Symbol-to-Chip Mapping (Option VIII):
4/11/2019
Symbol-to-Chip Mapping (Option VIII):
Gray coded 4-ary Ternary Orthogonal Keying
Symbol
Cyclic shift to right by n chips, n=
32-Chip value 00 01 8 11 16 10 24
PBTS Seq #1
1 zero padding
Ismail Lakkis (Wideband Access, Inc.)

17. 4/11/2019
Simulation Results
Ismail Lakkis (Wideband Access, Inc.)

18. Simulation Parameters
4/11/2019
Simulation Parameters
Bandwidth
10dB-BW ~ 500 MHz
Base Peak PRF
MHz
Additional PRFs
30.875, 61.75, 123.5
Data rates
7.7Mbps, 3.8Mbps, 1.9Mbps,
0.96Mbps, 480Kbps, 240Kbps, 120Kbps
Channel coding
Convolutional code K = 5, Rate = 1/2
modulation
Ternary via scrambler spreader
#SOPs
6 per FDM band
Multiple access
FDM/Scrambler CDM
Ismail Lakkis (Wideband Access, Inc.)

19. Simulation Assumptions
4/11/2019
Simulation Assumptions
PRF : MHz
Effective Data Rate ~ 1 MHz
Channel Coding : Rate ½ Conv. (K = 5)
Frame/Frequency : Assume perfect sync
Channel estimation : not perfect
Uncoded Packet Length : 32 octets
Option I with Peak PRF of 7.7 MHz
Ismail Lakkis (Wideband Access, Inc.)

20. Simulation Results (Coherent)
4/11/2019
Simulation Results (Coherent)
EbN0 Required for 1%PER
AWGN
4 dB
CM1
8 Fingers -
7 Fingers
6 Fingers
5 Fingers
5.5 dB
4 Fingers
6.5 dB
3 Fingers
2 Fingers
8.5 dB
1 Finger
11 dB
Ismail Lakkis (Wideband Access, Inc.)

21. Simulation Results (Coherent)
4/11/2019
Simulation Results (Coherent)
CM8
EbN0 Required for 1%PER
8 Fingers
10.0
7 Fingers
11.0
6 Fingers
11.5
5 Fingers
12.0
4 Fingers -
3 Fingers
2 Fingers
1 Finger
Ismail Lakkis (Wideband Access, Inc.)

22. Simulation Results (Non-Coherent)
4/11/2019
Simulation Results (Non-Coherent)
EbN0 Required for 1%PER
AWGN
10 dB
CM1
8 Fingers -
7 Fingers
6 Fingers
5 Fingers
4 Fingers
3 Fingers
15 dB
2 Fingers
16 dB
1 Finger
Ismail Lakkis (Wideband Access, Inc.)

23. 4/11/2019
Option III
Ismail Lakkis (Wideband Access, Inc.)

24. 4/11/2019
Option III
Ismail Lakkis (Wideband Access, Inc.)

25. 4/11/2019
Option III FEC Options
Ismail Lakkis (Wideband Access, Inc.)