Get documents about "UWB Phase3 UWB System
Document Sample
Mohammad Alkhodary 200806080
Ali Assaihati 200350130
EE 578 Simulation Communication Systems
Case Study (101) Phase III
KFUPM
Ultra Wideband Tr a n s m i t t e r C h a r a c t e r i s t i c s 1/30
Outlines UWB FCC Emission Mask
Introduction Modulation Methods
UWB Features UWB System Model Block Diagram
Spatial and Spectral Capacity Simulation Result
Data transmission
References
Introduction
UWB Features
Spatial and Spectral Capacity
Data transmission
UWB FCC Emission Mask
Modulation Methods
UWB System Model Block Diagram
General UWB Transmitter and Receiver
Simulation Result
References
Ultra Wideband Tr a n s m i t t e r C h a r a c t e r i s t i c s 2/30
Outlines UWB FCC Emission Mask
Introduction Modulation Methods
UWB Features UWB System Model Block Diagram
Spatial and Spectral Capacity Simulation Result
Data transmission References
Narrowband Communication
Time-domain behavior Frequency-domain behavior
0 1 0 1
Frequency
Modulation 2.4
GHz
Ultra wideband Communication
1 0 1
Impulse
Modulation
time 3 frequency 10 GHz
(FCC Min=1500Mhz)
•Extremely short pulses, no frequency carrier
Ultra Wideband Tr a n s m i t t e r C h a r a c t e r i s t i c s 3/30
Outlines UWB FCC Emission Mask
Introduction Modulation Methods
UWB Features UWB System Model Block Diagram
Spatial and Spectral Capacity Simulation Result
Data transmission References
UWB-generic term describing radio systems having very large bandwidth
Any signal
fractional bandwidth Bf , > 20% of its center frequency
f fL
f f 0.20
B f 2 H
H L
fH is upper 10dB and fL is the lower 10dB cutoff frequencies of the signal spectrum
RF bandwidth > 0.5 GHz
Ultra Wideband Tr a n s m i t t e r C h a r a c t e r i s t i c s 4/30
Outlines UWB FCC Emission Mask
Introduction Modulation Methods
UWB Features UWB System Model Block Diagram
Spatial and Spectral Capacity Simulation Result
Data transmission References
Compared to narrowband RF and spread spectrum, UWB uses extremely wide
bandwidth, if the emission power is not well controlled, UWB devices might cause
interference with other existing systems.
Ultra Wideband Tr a n s m i t t e r C h a r a c t e r i s t i c s 5/30
Outlines UWB FCC Emission Mask
Introduction Modulation Methods
UWB Features UWB System Model Block Diagram
Spatial and Spectral Capacity Simulation Result
Data transmission References
High data rate capability for communications
Multipath immunity
Low power consumption
Penetration characteristics
Ultra Wideband Tr a n s m i t t e r C h a r a c t e r i s t i c s 6/30
Outlines UWB FCC Emission Mask
Introduction Modulation Methods
UWB Features UWB System Model Block Diagram
Spatial and Spectral Capacity Simulation Result
Data transmission References
Ultra Wideband Tr a n s m i t t e r C h a r a c t e r i s t i c s 7/30
Outlines UWB FCC Emission Mask
Introduction Modulation Methods
UWB Features UWB System Model Block Diagram
Spatial and Spectral Capacity Simulation Result
Data transmission References
Ultra Wideband Tr a n s m i t t e r C h a r a c t e r i s t i c s 8/30
Outlines UWB FCC Emission Mask
Introduction Modulation Methods
UWB Features UWB System Model Block Diagram
Spatial and Spectral Capacity Simulation Result
Data transmission
References
Ultra Wideband Tr a n s m i t t e r C h a r a c t e r i s t i c s 9/30
Outlines UWB FCC Emission Mask
Introduction Modulation Methods
UWB Features UWB System Model Block Diagram
Spatial and Spectral Capacity Simulation Result
Data transmission
References
Ultra Wideband Tr a n s m i t t e r C h a r a c t e r i s t i c s 10/30
Outlines UWB FCC Emission Mask
Introduction Modulation Methods
UWB Features UWB System Model Block Diagram
Spatial and Spectral Capacity Simulation Result
Data transmission
References
Gaussian derivative provide excellent radiation properties
As the order of the derivative increases, the energy is
moving to higher frequencies
Higher order Gaussian derivative do not need frequency
shift to fit the FCC mask, but not in a power efficient manner
Ultra Wideband Tr a n s m i t t e r C h a r a c t e r i s t i c s 11/30
Outlines UWB FCC Emission Mask
Introduction Modulation Methods
UWB Features UWB System Model Block Diagram
Spatial and Spectral Capacity Simulation Result
Data transmission References
Ultra Wideband Tr a n s m i t t e r C h a r a c t e r i s t i c s 12/30
Outlines UWB FCC Emission Mask
Introduction Modulation Methods
UWB Features UWB System Model Block Diagram
Spatial and Spectral Capacity Simulation Result
Data transmission References
Pulse position modulation (PPM) where each pulse is
delayed or sent in advance of a regular time scale.
Bi-phase modulation create a pulse with opposite
phase.
Orthogonal Pulse Modulation, which requires special
pulse shapes to be generated that are orthogonal to each
other.
Ultra Wideband Tr a n s m i t t e r C h a r a c t e r i s t i c s 13/30
Outlines UWB FCC Emission Mask
Introduction Modulation Methods
UWB Features UWB System Model Block Diagram
Spatial and Spectral Capacity Simulation Result
Data transmission References
Ultra Wideband Tr a n s m i t t e r C h a r a c t e r i s t i c s 14/30
Outlines UWB FCC Emission Mask
Introduction Modulation Methods
UWB Features UWB System Model Block Diagram
Spatial and Spectral Capacity Simulation Result
Data transmission References
Ultra Wideband Tr a n s m i t t e r C h a r a c t e r i s t i c s 15/30
Outlines UWB FCC Emission Mask
Introduction Modulation Methods
UWB Features UWB System Model Block Diagram
Spatial and Spectral Capacity Simulation Result
Data transmission References
Ultra Wideband Tr a n s m i t t e r C h a r a c t e r i s t i c s 16/30
Outlines UWB FCC Emission Mask
Introduction Modulation Methods
UWB Features UWB System Model Block Diagram
Spatial and Spectral Capacity Simulation Result
Data transmission References
Ultra Wideband Tr a n s m i t t e r C h a r a c t e r i s t i c s 17/30
Outlines UWB FCC `Mask
Introduction Modulation Methods
UWB Features UWB System Model Block Diagram
Spatial and Spectral Capacity Simulation Result
Data transmission References
Gaussian Frequency of Pulse
1 200
amplitude (linear)
Spectrum (dB)
0
0.5
-200
0 -400
-10 -5 0 5 10 0 1 2 3 4
Time in nanoseconds Frequency in GHz
1st derviative of Gaussian Frequency of Pulse
2 1000
amplitude (linear)
Spectrum (dB)
1
0
0
-1000
-1
-2 -2000
-10 -5 0 5 10 0 1 2 3 4
Time in nanoseconds Frequency in GHz
2nd derviative of Gaussian Frequency of Pulse
1 200
amplitude (linear)
Spectrum (dB)
0.5 0
0 -200
-0.5 -400
-10 -5 0 5 10 0 1 2 3 4
Time in nanoseconds Frequency in GHz
Ultra Wideband Tr a n s m i t t e r C h a r a c t e r i s t i c s 18/30
Outlines UWB FCC `Mask
Introduction Modulation Methods
UWB Features UWB System Model Block Diagram
Spatial and Spectral Capacity Simulation Result
Data transmission References
Indoor LOS UWB signal
1
Transmitted Pulse
0.8 Received Pulse
0.6
0.4
0.2
Magnitude
0
-0.2
-0.4
-0.6
-0.8
-1
0 50 100 150 200 250 300
Time (nano Second)
Ultra Wideband Tr a n s m i t t e r C h a r a c t e r i s t i c s 19/30
Outlines UWB FCC `Mask
Introduction Modulation Methods
UWB Features UWB System Model Block Diagram
Spatial and Spectral Capacity Simulation Result
Data transmission References
Indoor NLOS UWB signal
1
Transmitted Pulse
0.8 Received Pulse
0.6
0.4
0.2
Magnitude
0
-0.2
-0.4
-0.6
-0.8
-1
0 20 40 60 80 100 120 140
Time (nano Second)
Ultra Wideband Tr a n s m i t t e r C h a r a c t e r i s t i c s 20/30
Outlines UWB FCC `Mask
Introduction Modulation Methods
UWB Features UWB System Model Block Diagram
Spatial and Spectral Capacity Simulation Result
Data transmission References
Indoor UWB spectrum after the antenna
With 1st Gaussian Derivitive
0
Transmitter Spectrum
FCC Mask
-50
-100
Power (dB)
-150
-200
-250
-300
-350
0 1 2 3 4 5 6
Frequency 10
x 10
Ultra Wideband Tr a n s m i t t e r C h a r a c t e r i s t i c s 21/30
Outlines UWB FCC `Mask
Introduction Modulation Methods
UWB Features UWB System Model Block Diagram
Spatial and Spectral Capacity Simulation Result
Data transmission References
Indoor UWB spectrum after the antenna
With 1st Gaussian Derivitive
0
Transmitter Spectrum
FCC Mask
-50
-100
Power (dB)
-150
-200
-250
-300
-350
0 1 2 3 4 5 6
Frequency 10
x 10
Ultra Wideband Tr a n s m i t t e r C h a r a c t e r i s t i c s 22/30
Outlines UWB FCC `Mask
Introduction Modulation Methods
UWB Features UWB System Model Block Diagram
Spatial and Spectral Capacity Simulation Result
Data transmission References
Indoor UWB spectrum bafor the antenna
With 2nd Gaussian Derivitive
0
Transmitter Spectrum
-50 FCC Mask
-100
-150
Power (dB)
-200
-250
-300
-350
-400
0 1 2 3 4 5 6
Frequency 10
x 10
Ultra Wideband Tr a n s m i t t e r C h a r a c t e r i s t i c s 23/30
Outlines UWB FCC `Mask
Introduction Modulation Methods
UWB Features UWB System Model Block Diagram
Spatial and Spectral Capacity Simulation Result
Data transmission References
Indoor UWB spectrum after the antenna
With 2nd Gaussian Derivitive
0
Transmitter Spectrum
-50 FCC Mask
-100
-150
Power (dB)
-200
-250
-300
-350
-400
0 1 2 3 4 5 6
Frequency 10
x 10
Ultra Wideband Tr a n s m i t t e r C h a r a c t e r i s t i c s 24/30
Outlines UWB FCC `Mask
Introduction Modulation Methods
UWB Features UWB System Model Block Diagram
Spatial and Spectral Capacity Simulation Result
Data transmission References
Indoor UWB spectrum bafor the antenna
With 1st Derivitive
-40
Transmitter Spectrum
-45 FCC Mask
-50
-55
-60
Power (dB)
-65
-70
-75
-80
-85
-90
0.5 1 1.5 2 2.5 3 3.5 4 4.5 5
Frequency 10
x 10
Ultra Wideband Tr a n s m i t t e r C h a r a c t e r i s t i c s 25/30
Outlines UWB FCC `Mask
Introduction Modulation Methods
UWB Features UWB System Model Block Diagram
Spatial and Spectral Capacity Simulation Result
Data transmission References
Indoor UWB spectrum after the antenna
With 1st Derivitive
-40
Transmitter Spectrum
-45 FCC Mask
-50
-55
-60
Power (dB)
-65
-70
-75
-80
-85
-90
0.5 1 1.5 2 2.5 3
Frequency 10
x 10
Ultra Wideband Tr a n s m i t t e r C h a r a c t e r i s t i c s 26/30
Outlines UWB FCC `Mask
Introduction Modulation Methods
UWB Features UWB System Model Block Diagram
Spatial and Spectral Capacity Simulation Result
Data transmission References
Indoor UWB spectrum bafor the antenna
With 2nd Derivitive
-40
Transmitter Spectrum
-45 FCC Mask
-50
-55
-60
Power (dB)
-65
-70
-75
-80
-85
-90
0.5 1 1.5 2 2.5 3
Frequency 10
x 10
Ultra Wideband Tr a n s m i t t e r C h a r a c t e r i s t i c s 27/30
Outlines UWB FCC `Mask
Introduction Modulation Methods
UWB Features UWB System Model Block Diagram
Spatial and Spectral Capacity Simulation Result
Data transmission References
Indoor UWB spectrum after the antenna
With 2nd Derivitive
-40
Transmitter Spectrum
-45 FCC Mask
-50
-55
-60
Power (dB)
-65
-70
-75
-80
-85
-90
0.5 1 1.5 2 2.5 3
Frequency 10
x 10
Ultra Wideband Tr a n s m i t t e r C h a r a c t e r i s t i c s 28/30
Outlines UWB FCC `Mask
Introduction Modulation Methods
UWB Features UWB System Model Block Diagram
Spatial and Spectral Capacity Simulation Result
Data transmission References
Andreas F. Molisch, Kannan Balakrishnan, Chia-Chin Chong, “IEEE 802.15.4a
channel model - final report.
Alexander M. Haimovich, Jason A. Dabin, “THE EFFECTS OF ANTENNA
DIRECTIVITY ON PATH LOSS AND MULTIPATH PROPAGATION IN UWB INDOOR
WIRELESS CHANNELS” IEEE signal process journal
Jose L. Paredes, Gonzalo R. Arce, “Ultra-Wideband Channel Estimation” , IEEE
JOURNAL OF SELECTED TOPICS IN SIGNAL PROCESSING, VOL. 1, NO. 3, OCTOBER
2007
Ultra Wideband Tr a n s m i t t e r C h a r a c t e r i s t i c s 29/30
30/30
