doc.: ieee 802.11-04/0530r0 submission may 2004 guido r. hiertz, comnets, aachen universityslide 1...
TRANSCRIPT
May 2004
Guido R. Hiertz, ComNets, Aachen University
Slide 1
doc.: IEEE 802.11-04/0530r0
Submission
Mesh networks for home entertainment
Guido R. Hiertz, Yunpeng ZangComNets
Chair of Communication NetworksAachen University
Germany
Jörg HabethaPhilips Research
AachenGermany
May 2004
Guido R. Hiertz, ComNets, Aachen University
Slide 2
doc.: IEEE 802.11-04/0530r0
Submission
Consumer electronics (CE)
• Television set• DVD/CD
– Player/Recorder
– Wireless active speakers
– Surround sound
– Home Cinema/Theatre
• Remote control• Game console
• Radio tuner (digital/analog)
• Satellite receiver (digital/analog)
• MP3– Computer as source
– CE device as source
• Wireless phones– VoIP
May 2004
Guido R. Hiertz, ComNets, Aachen University
Slide 3
doc.: IEEE 802.11-04/0530r0
Submission
Classification from user view
• Video– Video telephony not
widely accepted
– Mainly streaming
– Mainly non-interactive
– High Definition TV
• Game console
• Audio– Music/Sound streams
– Surround
– Telephony (VoIP)
• Control– Channel selection
– Volume, etc.
May 2004
Guido R. Hiertz, ComNets, Aachen University
Slide 4
doc.: IEEE 802.11-04/0530r0
Submission
Video devices
• Video display devices– TV set
• CRT
• LCD
• Plasma
– Video projector• LCD
• LCOS
• Mounted above head
• Video source devices– VCR
– Camcorder
– DVD
– Set top box
– Satellite receiver
– Streaming server
– Video provider
May 2004
Guido R. Hiertz, ComNets, Aachen University
Slide 5
doc.: IEEE 802.11-04/0530r0
Submission
Audio devices
• Simplex source– Radio
(satellite/terrestrial)
– CD/DVD
– MP3
• Simplex sink– Active speakers
– Headset
• Duplex devices– Wireless phone
– VoIP
– In house communication
May 2004
Guido R. Hiertz, ComNets, Aachen University
Slide 6
doc.: IEEE 802.11-04/0530r0
Submission
Game console
• Combines Video and Audio signal– Rendered on your PC– Displayed somewhere else– Surround sound created on PC– Sound played back at game console
• Control channel– Human Interface Devices (HID)
• Joystick etc.
May 2004
Guido R. Hiertz, ComNets, Aachen University
Slide 7
doc.: IEEE 802.11-04/0530r0
Submission
Requirements to CE
• Ease of use
• No user configuration
• Support well known behavior of CE devices
• Limit functionality to useful subset
• No flaws on QoS tolerated
Competition to existing Audio/Video broadcast systems
May 2004
Guido R. Hiertz, ComNets, Aachen University
Slide 8
doc.: IEEE 802.11-04/0530r0
Submission
Home environment (1)
• Many stationary devices• Consumer electronic device always powered• Few mobile devices
– Tablet PC
– PDA
– VoIP phone
• Slow mobility• Very slow changing environment
May 2004
Guido R. Hiertz, ComNets, Aachen University
Slide 9
doc.: IEEE 802.11-04/0530r0
Submission
Home environment (2)
• Single household– Single Basic Service Set– Single administrative instance
• Multiple apartments in shared environment– Multiple households– Self organizing MAC needed– Competition among neighbors on wireless
medium
May 2004
Guido R. Hiertz, ComNets, Aachen University
Slide 10
doc.: IEEE 802.11-04/0530r0
Submission
Home environment (3)
CamcorderTV
VCR
TV
TV
Radio
PC
PhoneBay Networks
SD
Ba
y N
etw
ork
s
Ba
yS
tac
kA
cces
s P
oin
t6
50
Wir
ele
ss
AP
aufwärts
Wireless VoIP
May 2004
Guido R. Hiertz, ComNets, Aachen University
Slide 11
doc.: IEEE 802.11-04/0530r0
Submission
Home environment (3)
CamcorderTV
VCR
TV
TV
Radio
PC
PhoneBay Networks
SD
Ba
y N
etw
ork
s
Ba
yS
tac
kA
cces
s P
oin
t6
50
Wir
ele
ss
AP
aufwärts
Wireless VoIP
May 2004
Guido R. Hiertz, ComNets, Aachen University
Slide 12
doc.: IEEE 802.11-04/0530r0
Submission
Mobility support
CamcorderTV
VCR
TV
TV
Radio
PC
PhoneBay Networks
SD
Ba
y N
etw
ork
s
Ba
yS
tac
kA
cces
s P
oin
t6
50
Wir
ele
ssAP
aufwärts
Wireless VoIP
Mobilitysupport
May 2004
Guido R. Hiertz, ComNets, Aachen University
Slide 13
doc.: IEEE 802.11-04/0530r0
Submission
Multi Hop
• Installation of multiple APs not possible– Women's acceptance factor– Device mesh network
• Attenuation by walls– High for 802.11a (5GHz)
• Reduce transmission power to reduce exposition to human beings
Multi hop capability needed
May 2004
Guido R. Hiertz, ComNets, Aachen University
Slide 14
doc.: IEEE 802.11-04/0530r0
Submission
CE is sensitive to cost
• Multiple transceiver solutions– Frequency diversity
– Easy spatial frequency reuse
– May set up separate backbone
– Parallel transmissions possible
• Single transceiver solutions– Cheap
– Sufficient for average user (?)
– Avoid unused TRx
– Easy integration to CE
May 2004
Guido R. Hiertz, ComNets, Aachen University
Slide 15
doc.: IEEE 802.11-04/0530r0
Submission
WPAN 802.15.3
• Various submissions regarding CE– Consumer electronic industry requirements for
TG3a alt PHY (802.15-03/276r0)– Application of mmW-based PHYs (802.15-
03/474r2)
May 2004
Guido R. Hiertz, ComNets, Aachen University
Slide 16
doc.: IEEE 802.11-04/0530r0
Submission
Thank you for you attention