doc.: ieee 802.15-00/136r0 submission may 2000 maurice schiff, elanixslide 1 project: ieee p802.15...
TRANSCRIPT
May 2000
Maurice Schiff, ElanixSlide 1
doc.: IEEE 802.15-00/136r0
Submission
Project: IEEE P802.15 Working Group for Wireless Personal Area Networks (WPANs)
Submission Title: [ Interference/Coexistence of WLAN/WPANs via SystemView]Date Submitted : [ 9 May 2000]Source: [Maurice Schiff] Company: [Elanix, Inc.] and [Michael Dydyk] Company: [Motorola Inc.]Address: [5655 Lindero Canyon Rd. ,Suite 721, Wetlake Village, CA, 91362] [8220 E. Roosvelt St., Scottsdale, AZ, 85257]Voice:[818-597-1414], FAX: [818-597-1427]< E-Mail [[email protected]] [480-441-2074], FAX: [480-441-0830]< E-Mail [[email protected]]Re: [N/A]
Abstract: [This presentation describes a PC based simulation engine that can be used to investigatemany aspects of the WLAN/WPAN PHY layer performance, including BER performance, effects ofother user interference, etc.]
Purpose:[ To provide WLAN/WPAN developers a means for rapidly and accurately investigating theirsystem designs.]
Notice: This document has been prepared to assist the IEEE P802.15. It is offered as a basis fordiscussion and is not binding on the contributing individual(s) or organization(s). The material in thisdocument is subject to change in form and content after further study. The contributor(s) reserves(s) theright to add, amend or withdraw the the material contained within.
May 2000
Maurice Schiff, ElanixSlide 2
doc.: IEEE 802.15-00/136r0
Submission
Agenda
• Introduction• Overview of SystemView• Bluetooth Model• Interferor Models
– Frequency Hoping Spread Spectrum– Direct Sequence Spread Spectrum
• Results of Simulation• Conclusions
May 2000
Maurice Schiff, ElanixSlide 3
doc.: IEEE 802.15-00/136r0
Submission
What is SystemView?
• The rapid prototyping tool for system design engineers that want to: – Implement a design with minimum effort– Perform trade studies– Analyze Results
AND– Migrate to Hardware
May 2000
Maurice Schiff, ElanixSlide 4
doc.: IEEE 802.15-00/136r0
Submission
SystemView Overview
• Perform Bit-True, Multi-rate, and Mix-Mode simulations in an efficient manner.
• PC Based Software Simulation Tool– Block diagram editor with Application Specific
libraries.• And a “Virtual Work Bench” that offers all the
functions of “Real World” laboratory equipment.
May 2000
Maurice Schiff, ElanixSlide 5
doc.: IEEE 802.15-00/136r0
Submission
Key SystemView Benefits
• Simulate all types of modulation• Add any number of interferers with arbitrary modulation
and power levels• Peform complete parameter (BER) studies in a
single run• End to end simulations includeing rf and DSP
portions of the design (mixed mode)• Easy-to-learn and Ease-of-use
– Be productive rapidly– Develop and modify sophisticated user models
quickly
May 2000
Maurice Schiff, ElanixSlide 7
doc.: IEEE 802.15-00/136r0
Submission
Time Specification Form
May 2000
Maurice Schiff, ElanixSlide 8
doc.: IEEE 802.15-00/136r0
Submission
Typical Analysis Displays
May 2000
Maurice Schiff, ElanixSlide 9
doc.: IEEE 802.15-00/136r0
Submission
SystemView Filter Design
• Filter Design is Included in Basic SystemView– An extensive filter design window to
generate• FIR Filters• IIR Filters• Communications Filters• Custom Filters• DSP bit true mode
May 2000
Maurice Schiff, ElanixSlide 12
doc.: IEEE 802.15-00/136r0
Submission
802.11 DSSS With Interference
May 2000
Maurice Schiff, ElanixSlide 13
doc.: IEEE 802.15-00/136r0
Submission
802.11 Spectra
SystemView
0
0
10e+6
10e+6
20e+6
20e+6
30e+6
30e+6
40e+6
40e+6
50e+6
50e+6
60e+6
60e+6
-140
-120
-100
Powe
r dBm
Frequency in Hz (dF = 32.23e+3 Hz)
Power Spectrum of Sink 33 (dBm 50 ohms)
May 2000
Maurice Schiff, ElanixSlide 14
doc.: IEEE 802.15-00/136r0
Submission
Overlay of DSSS and Interference Spectra
SystemView
0
0
25e+6
25e+6
50e+6
50e+6
75e+6
75e+6
100e+6
100e+6
125e+6
125e+6
-140
-120
-100
-80I n t e r f e r e n c e
D e s i r e d S i g n a l
Pow
er d
Bm
Frequency in Hz (dF = 4.028e+3 Hz)
SIGNAL SPECTUA
May 2000
Maurice Schiff, ElanixSlide 15
doc.: IEEE 802.15-00/136r0
Submission
DSSS Eye DiagramSystemView
0
0
20.e-9
20.e-9
40.e-9
40.e-9
60.e-9
60.e-9
80.e-9
80.e-9
100.e-9
100.e-9
120.e-9
120.e-9
140.e-9
140.e-9
160.e-9
160.e-9
-50.e-6
0
50.e-6
Ampl
itude
Time in Seconds
Eye Diagram
May 2000
Maurice Schiff, ElanixSlide 16
doc.: IEEE 802.15-00/136r0
Submission
Bluetooth Model with DSSS Interference
May 2000
Maurice Schiff, ElanixSlide 17
doc.: IEEE 802.15-00/136r0
Submission
Effect of DSSS Interferer on Bluetooth Performance
SystemView
-100
-100
-98
-98
-96
-96
-94
-94
-92
-92
-90
-90
-88
-88
-86
-86
1.00e-2
1.00e-1B l u e t o o t h B E R v s P w r
w i t h D S S S I n t e r f e r e n c e
BER
Received Power dBm
BER vs Power
May 2000
Maurice Schiff, ElanixSlide 18
doc.: IEEE 802.15-00/136r0
Submission
Bluetooth Model With FH Interference
May 2000
Maurice Schiff, ElanixSlide 19
doc.: IEEE 802.15-00/136r0
Submission
Effect of FH Interferer on Bluetooth Performance
SystemView
-100
-100
-98
-98
-96
-96
-94
-94
-92
-92
-90
-90
-88
-88
-86
-86
8.00e-3 9.00e-3 1.00e-2 1.00e-2
2.00e-2
3.00e-2
4.00e-2
5.00e-2
6.00e-2 7.00e-2 8.00e-2 9.00e-2 1.00e-1 1.00e-1
2.00e-1
3.00e-1
4.00e-1
B E R v s R c v d P o w e r
w i t h F H I n t e r f e r e n c e
BER
Power in dBm
BER vs SNR for w0
May 2000
Maurice Schiff, ElanixSlide 21
doc.: IEEE 802.15-00/136r0
Submission
SystemView Optional Libraries
DSPLibrary
LogicLibrary
CommunicationsLibrary
Adaptive FilterLibrary
RF/AnalogLibrary
CDMA/PCSLibrary
User codeLibrary
DVBLibrary
M-Link