• Save
Bell Labs Ireland research on small cells [Davide Cherubini]
Upcoming SlideShare
Loading in...5
×
 

Like this? Share it with your network

Share

Bell Labs Ireland research on small cells [Davide Cherubini]

on

  • 3,261 views

Davide Cherubini from Alcatel-Lucent Bell Labs Ireland (BLI) talks about their work on increasing energy efficiency in cellular networks through 'green radio' solutions.

Davide Cherubini from Alcatel-Lucent Bell Labs Ireland (BLI) talks about their work on increasing energy efficiency in cellular networks through 'green radio' solutions.

Statistics

Views

Total Views
3,261
Views on SlideShare
2,010
Embed Views
1,251

Actions

Likes
1
Downloads
0
Comments
0

35 Embeds 1,251

http://3g4g.blogspot.com 763
http://blog.3g4g.co.uk 214
http://3g4g.blogspot.in 75
http://3g4g.blogspot.co.uk 54
http://www.reconfigr.com 22
http://3g4g.blogspot.fr 16
http://3g4g.blogspot.tw 13
http://3g4g.blogspot.com.au 8
http://3g4g.blogspot.com.es 8
http://3g4g.blogspot.kr 8
http://3g4g.blogspot.de 7
http://3g4g.blogspot.com.br 6
http://3g4g.blogspot.pt 6
http://itknowledgehub.com 5
http://3g4g.blogspot.dk 5
http://3g4g.blogspot.jp 4
http://3g4g.blogspot.se 4
http://3g4g.blogspot.it 4
http://3g4g.blogspot.ca 3
http://3g4g.blogspot.ie 3
http://3g4g.blogspot.hk 2
http://3g4g.blogspot.ru 2
http://3g4g.blogspot.fi 2
http://3g4g.blogspot.gr 2
http://3g4g.blogspot.sg 2
http://3g4g.blogspot.be 2
http://translate.googleusercontent.com 2
http://3g4g.blogspot.co.nz 2
http://3g4g.blogspot.hu 1
http://3g4g.blogspot.co.at 1
http://3g4g.blogspot.nl 1
http://3g4g.blogspot.mx 1
http://3g4g.blogspot.sk 1
http://3g4g.blogspot.ch 1
http://3g4g.blogspot.co.il 1
More...

Accessibility

Categories

Upload Details

Uploaded via as Microsoft PowerPoint

Usage Rights

© All Rights Reserved

Report content

Flagged as inappropriate Flag as inappropriate
Flag as inappropriate

Select your reason for flagging this presentation as inappropriate.

Cancel
  • Full Name Full Name Comment goes here.
    Are you sure you want to
    Your message goes here
    Processing…
Post Comment
Edit your comment

Bell Labs Ireland research on small cells [Davide Cherubini] Presentation Transcript

  • 1. BLI Research on Small Cells
    Imran Ashraf
    April 2010
    Davide CherubiniBell Labs Ireland
    Networks & Networking Group
  • 2. Spectrally Efficient Cellular Networks
    • Heterogeneous network deployment
    Femtocell overlay on the GSM macrocell network
    Localized coverage through femtocells – high data rates
    • Partial re-use of macrocell GSM frequencies
    Femtocells perform sensing for unused GSM spectrum by macrocells
    The vacant spectrum is opportunistically used by femtocells with tight interference constraints on the macrocell network
    Capacity increase for femtocells with minor impact on the macrocell network
    2| July 2010
    Mbps
  • 3. Green Cellular Networks
    Total Consumption = 12 W
    Total Consumption = 7.3 W
    Power Amplifier(2 Watts)
    Power Amplifier(0 Watt)
    Power Source (85 % efficiency)
    Power Source (85 % efficiency)
    Microprocessor
    (RF On)(3.7 Watts)
    Microprocessor (RF Off)(2.7 Watts)
    FPGA/Other Circuitry(4.5 Watts)
    FPGA/Other Circuitry(3.5 Watts)
    SLEEP Mode
    ACTIVE Mode
    • Use of low-power small cells to off-load macrocell traffic
    • 4. Network energy consumption increases in dependency of the scale of small cell deployment
    • 5. Energy-Efficient algorithms for small cells
    Coverage-aware Switch-offs
    Detect existing spatial coverage and switch-off base stations
    Traffic-aware Sleep modes
    Detect UE activity via carrier sniffing and temporarily switch-off idle small cells
    Energy consumption follows the traffic
    3| July 2010
  • 6. Network Power Savings using Sleep Modes
    Network energy consumptionfor operator with 40% market share (Future improved Technologies)
    Network energy consumption for operator with 40% market share (Today)
    Higher macrocell efficiency
    97% of energy costs paid by end user
    Higher picocell efficiency
    Picocell contribution increases linearly
    Picocell contribution does not increase linearly anymore
    100% of energy costs paid by operator
    75% reduction in network power consumption
    4| July 2010
  • 7. Future - Autonomous Networks
    UE
    UE
    UE
    Network
    Network
    Network
    Now
    Future
    Past
    Ongoing research is in here
    Objective
    Objective
    Model
    Objective
    Model
    Objective
    Model
    Automated Program Generation (offline)
    Algorithm
    Algorithm
    Network Planners
    Design stage
    measurements
    measurements
    measurements
    Model
    Automated Program Generation
    (online)
    Algorithm
    measurements
    drive testing
    BS
    BS
    BS
    BS
    The algorithm generation process is now distributed and performed locally and continuously by the network nodes themselves. Nodes now have ability to autonomously specialise their individual behaviour according to environment.
    Algorithms are generated using automated means, (Genetic Programming). Design process is done offline, and resulting algorithm is implemented in the network.
    Algorithms for auto-configuration and self-optimisation are developed manually, and used to automate the network configuration and optimisation.
    Planning and optimisation is performed manually through network planning engineers and drive testing.
    5| July 2010
  • 8. Wilson Street Project
    Scope
    Development of a series of small cell demos
    http://www.wilson-street.com
    @Bell Labs Ireland
    First permanent small cells platform for research
    • validation on real devices
    • 9. indoor open service cells
    • 10. open platform
    • 11. looking at the future!
    6| July 2010
  • 12. WirelessLab SIG Events
    Join WirelessLab’s Energy-Efficient Wireless Access NetworksSpecial Interest Group!
    For further information:
    www.wirelesslab.ie
    Interested in further discussions onenergy-efficient wireless communications?
    7| July 2010
  • 13. Any Questions?
    Thank You