60 GHz MMW Applications

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60 GHz MMW Applications
Helsinki University of Technology Telecommunicatio
ns and Multimedia Laboratory

• 9.4.2003 Eino Kivisaari

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MAIN GOAL

• To position the 60 GHz technology on a wireless
  communications roadmap
• Where is 60 Ghz needed and by whom?

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INTRO TO 60 GHz

• High bandwidth radio transmission
• Frequency range appr. 5864 GHz
• ? several GHz of bandwidth allocated wordwide
  for 60 GHz telecommunication
• Very high speed wireless connections
• theoretically up to 1 Gb/s
• Little interference
• Does not interfere with existing wireless systems
• Due to oxygen attenuation, spatial capacity is
  high
• Propagation
• Range tens of meters indoors, up to 500/1000 m
  outdoors
• Walls are a blocking obstacle, corners are not

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60 GHz PROS

• Very high connection speeds, up to 1 Gb/s
  enabler of new services and functions
• especially in corporate high-end market
• Less unknowns than in UWB
• If UWB is compromised by interference or
  regulatory issues, 60 GHz might be the only
  solution for very high speed wireless
• Huge Unlicensed Radio Spectrum

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Country / Region Frequency Range GHz Purpose
Europe 6263, 6566 MBS
Europe 5962 WLAN
USA 5964 General purpose
Japan 5966 Wireless Communication
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60 GHz CONS

• Complex sophisticated radio technology
• Expensive, especially compared to UWB
• Difficult RF circuit technology and expensive
  GaAs semiconductors needed
• Not as power-efficient as UWB
• 60 GHz power amplifier efficiency is low with
  current technology

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60 GHz APPLICATIONS

• High-end wireless solutions for corporate use
• 60 GHz WLANs
• reliable, very high speed connetions
• today applications where power and price are not
  crucial
• Wont propagate through walls ? one AP needed for
  each room
• One-room coverage inside, building-to-building
  outside
• Fixed Wireless, 5001000 m
• Heavy rain causes significant attenuation
• Not in mobile terminals
• too high power consumption, too expensive

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60 GHz FUTURE

• Price and power consumption may be decreased in
  the future by higher integration of components
• Preamp, mixer, power amplifier into one chip
• OFDM seems to be the best modulation scheme
• With orthogonally divided spectrum it is easy to
  optimize power consumption in devices that dont
  need maximum data rates
• OFDM complexity grows only moderately with data
  rates
• Japan is the technology leader in 60 Ghz
• demand for high spatial capacity in domestic
  market

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Application Capacity per user Mb/s Low cost requirement
Wireless LAN bridge, e.g., for interconnecting GigaEthernet LANs in different buildings 100-1000 No
Wireless virtual reality allowing free body movements 450 Yes
Wireless IEEE 1394 100, 200, 400 Yes
Wireless TV high-resolution recording camera 150-270 No
Wireless trading terminal having multiple video channels that can be viewed simultaneously for monitoring world news next to stock quote information 50-100 No
Wireless news tablet, a very thin, possibly flexible device that provides the user with a newspaper, e.g., the possibility of activating images to see video impressions 50-100 Yes
Wireless (high-quality) videoconferencing 10-100 Yes
Wireless Internet download of lengthy files 10-100 Yes
Wireless ad hoc communications, i.e., direct communication between notebooks, between notebook and nearby printer, etc. 0,1-100 Yes
Wireless interactive design 20-40 Yes
Hospital bedside application allowing wireless retrieval of patients status including Xray pictures 10 Yes
Wireless surveillance cameras allowing face and number plate recognition at long distances 410 Yes
Patient monitoring (patients can walk freely around in the hospital or even at home) with devices that transmit ECG, blood pressure information, etc. 2 Yes
Wireless videophone 1,5 Yes
Wireless connection between domestic appliances and the Internet e.g. a refrigerator scans its contents and orders the nearby supermarket to deliver what is missing 0,1 Yes
Wireless billing (e.g., automatic payment for petrol service via wireless connection between car and filling station) 0,1 Yes
Road pricing 0,1 Yes
Wireless burglar alarm (wireless window sensors, etc.) 0,01 Yes
Remote control (TV, lighting, door/window lock 0,01 Yes
Wireless embedded systems (e.g., in car between oil filter and dashboard) 0,01 Yes