Multi-antenna DVB-H receiver
      Andy Dewilde, IMEC
      MADUF, March 20, 2007
2

 Research focus




Study on impact of a multi-antenna DVB-H receiver
     on reception performance and
     battery ...
3

 Outline


 DVB-H system overview


 System modelling for simulation

 Results

 Conclusions
4

DVB-H conceptual system overview



                Robustness

                Power saving




                Mobili...
5

DVB-H conceptual system overview (2)




                             Research focus
6
 A system model of DVB-H PHY layer has been
 developed in the Matlab simulation environment


  System simulation model...
7

MIMO channel specifications
8

       MIMO channel specifications

       Single input (Tx), multiple output (Rx1 & Rx2)
       Typical Urban 6 (TU6...
9

DVB-H receiver specifications
10

     DVB-H receiver specifications




     Dual stream input
     Channel estimation and Equalizer adapted for Maxi...
11
Maximum Ratio Combining uses a weighted
combination of antenna 1 and antenna 2 signals




                            ...
12
Performance comparison between single antenna and
dual antenna DVB-H reception.




                            Worse

...
13
Dual antenna reception gives approx. 4 dB performance
gain compared to single antenna.




     Dual antenna, MRC      ...
14
At 120 km/h, there is a 1.5 dB performance loss
compared to a static channel.




                Static               ...
15
About 7 to 10% battery power penalty when using dual
antenna reception on typical DVB-H handheld



                   ...
16

 Conclusions


 Standard compliant DVB-H model has been developed

 Dual antenna DVB-H reception has been simulated
...
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Maduf04 Multi Antenna Dvb H Receiver Andy De Wilde

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Maduf04 Multi Antenna Dvb H Receiver Andy De Wilde

  1. 1. Multi-antenna DVB-H receiver Andy Dewilde, IMEC MADUF, March 20, 2007
  2. 2. 2 Research focus Study on impact of a multi-antenna DVB-H receiver   on reception performance and   battery power consumption
  3. 3. 3 Outline  DVB-H system overview  System modelling for simulation  Results  Conclusions
  4. 4. 4 DVB-H conceptual system overview Robustness Power saving Mobility/network trade-off
  5. 5. 5 DVB-H conceptual system overview (2) Research focus
  6. 6. 6 A system model of DVB-H PHY layer has been developed in the Matlab simulation environment   System simulation model (Matlab) includes 1.  DVB-H transmitter 2.  MIMO wireless channel 3.  Dual antenna DVB-H receiver
  7. 7. 7 MIMO channel specifications
  8. 8. 8 MIMO channel specifications   Single input (Tx), multiple output (Rx1 & Rx2)   Typical Urban 6 (TU6) channel   Antenna correlation factor: 0.5 (~ 12..15 cm separation)   Time variant behavior (mobility simulation) 20 km/h 120 km/h Channel response
  9. 9. 9 DVB-H receiver specifications
  10. 10. 10 DVB-H receiver specifications   Dual stream input   Channel estimation and Equalizer adapted for Maximum Ratio Combining (MRC)
  11. 11. 11 Maximum Ratio Combining uses a weighted combination of antenna 1 and antenna 2 signals  High attenuation  Small signal  High noise impact  High data uncertainty  Assign low weight
  12. 12. 12 Performance comparison between single antenna and dual antenna DVB-H reception. Worse Better
  13. 13. 13 Dual antenna reception gives approx. 4 dB performance gain compared to single antenna. Dual antenna, MRC Single antenna ~4 dB gain
  14. 14. 14 At 120 km/h, there is a 1.5 dB performance loss compared to a static channel. Static 120 km/h ~1.5 dB loss
  15. 15. 15 About 7 to 10% battery power penalty when using dual antenna reception on typical DVB-H handheld   For dual antenna MRC receiver   2x Front End (FE)   1.5x Baseband (BB) ⇓   Approx. 7% increase in power consumption.
  16. 16. 16 Conclusions  Standard compliant DVB-H model has been developed  Dual antenna DVB-H reception has been simulated  With a typical channel, approx. 4 dB gain is achieved in receiver performance (before MPE-FEC)…  … and gives an increase of about 7% in battery power consumption on general DVB-H handheld.
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