Transcript
Slide 1 Thomas KaiserPanel Statements – UWB Workshop
Santa Monica, April 11-12, 2006
UWB & Multiple Antenna Systems ?
• Feng Zheng• Sigmar Ries• Christiane Senger• Mohamed El-Hadidy• Bamrung Tau-Sieskul
Acknowledgements
Slide 2 Thomas KaiserPanel Statements – UWB Workshop
Santa Monica, April 11-12, 2006
• UWB & MIMO Channel Capacity
• „Double-dB-Gain“ of UWB beamforming
• The „BeamLoc“-Algorithm - Localization in NLoS
• Spatial Multiplexing with „MISO“
Outline
Slide 3 Thomas KaiserPanel Statements – UWB Workshop
Santa Monica, April 11-12, 2006
(Feng, Kaiser, ISSSTA’04)
UWBMIMO
Limit for indoorcommunicationis UWB & MIMO
UWB & MIMO Channel Capacity
Slide 4 Thomas KaiserPanel Statements – UWB Workshop
Santa Monica, April 11-12, 2006
„Double-dB Gain“ of UWB Beamforming
Slide 5 Thomas KaiserPanel Statements – UWB Workshop
Santa Monica, April 11-12, 2006
Parameter setting:
Slide 6 Thomas KaiserPanel Statements – UWB Workshop
Santa Monica, April 11-12, 2006
"Pattern matching"
"Almost solved"
"Multipathsupression"
"Open problem"
PureNLoS
LoS+NLoS
PureLoS
KnownEnvironments
UnknownEnvironments
Localization
The „BeamLoc“ Approach -Localization in NLoS Environments
Slide 7 Thomas KaiserPanel Statements – UWB Workshop
Santa Monica, April 11-12, 2006
An unobstructed DP in a LoS Scenario Reflector
TX RX
An attenuated DP causedby the antenna pattern
TX
RX
Reflector
Slide 8 Thomas KaiserPanel Statements – UWB Workshop
Santa Monica, April 11-12, 2006
An obstructed attenuated DP Reflector
TX RX
An obstructed attenuatedand delayed DP Reflector
TX RX
Slide 9 Thomas KaiserPanel Statements – UWB Workshop
Santa Monica, April 11-12, 2006
Challenge: Multipath Propagation
Mitigation by
2. Filter matched to the transmitted pulse shape
4. Power level of direct path
3. Polarization
5. Beamforming by using multiple antennas
1. Direct path arrives first
Slide 10 Thomas KaiserPanel Statements – UWB Workshop
Santa Monica, April 11-12, 2006
Indoor Positioning Network (IPN)
RX TX
Slide 11 Thomas KaiserPanel Statements – UWB Workshop
Santa Monica, April 11-12, 2006
Concept illustration (with compass)
RX TX
Slide 12 Thomas KaiserPanel Statements – UWB Workshop
Santa Monica, April 11-12, 2006
RX TX
Slide 13 Thomas KaiserPanel Statements – UWB Workshop
Santa Monica, April 11-12, 2006
RX TX
Slide 14 Thomas KaiserPanel Statements – UWB Workshop
Santa Monica, April 11-12, 2006
TXRX
Slide 15 Thomas KaiserPanel Statements – UWB Workshop
Santa Monica, April 11-12, 2006
TXRX
Slide 16 Thomas KaiserPanel Statements – UWB Workshop
Santa Monica, April 11-12, 2006
TXRX
Slide 17 Thomas KaiserPanel Statements – UWB Workshop
Santa Monica, April 11-12, 2006
Locked mode (LM)RX TX
Slide 18 Thomas KaiserPanel Statements – UWB Workshop
Santa Monica, April 11-12, 2006
RX TX
Slide 19 Thomas KaiserPanel Statements – UWB Workshop
Santa Monica, April 11-12, 2006
RX TX
Slide 20 Thomas KaiserPanel Statements – UWB Workshop
Santa Monica, April 11-12, 2006
RX TX
Slide 21 Thomas KaiserPanel Statements – UWB Workshop
Santa Monica, April 11-12, 2006
RX TX
Slide 22 Thomas KaiserPanel Statements – UWB Workshop
Santa Monica, April 11-12, 2006
RX TX
Slide 23 Thomas KaiserPanel Statements – UWB Workshop
Santa Monica, April 11-12, 2006
RX TX
Slide 24 Thomas KaiserPanel Statements – UWB Workshop
Santa Monica, April 11-12, 2006
Simulation Setup
Slide 25 Thomas KaiserPanel Statements – UWB Workshop
Santa Monica, April 11-12, 2006
Results
Slide 26 Thomas KaiserPanel Statements – UWB Workshop
Santa Monica, April 11-12, 2006
Spatial Multiplexing with „MISO“
TXAntenna
MultipathChannel
RXAntenna
Slide 27 Thomas KaiserPanel Statements – UWB Workshop
Santa Monica, April 11-12, 2006
Bowtie Antenna Simulation
Slide 28 Thomas KaiserPanel Statements – UWB Workshop
Santa Monica, April 11-12, 2006
Ray Tracing vs. Measurements
Slide 29 Thomas KaiserPanel Statements – UWB Workshop
Santa Monica, April 11-12, 2006
ResultsBER Performance for UWB (M)ISO Spatial Multiplexing with S-Rake Receiver
Slide 30 Thomas KaiserPanel Statements – UWB Workshop
Santa Monica, April 11-12, 2006
Conclusions
• multiplexing gain• diversity gain (?)• coding/array gain• localisation gain• hardware gain (?)
UWB & MAS offer:
Oct 03 April 04 Aug 04 Jan 05 Feb 06
118 234
April 06
26 41 61 576
Google Hits for „MIMO UWB“
top related