slide1
Download
Skip this Video
Download Presentation
Next Steps Proposed Testbeds Panel Discussion

Loading in 2 Seconds...

play fullscreen
1 / 14

Proposed Testbeds - PowerPoint PPT Presentation


  • 336 Views
  • Uploaded on

Next Steps Proposed Testbeds Panel Discussion. John Chapin Chair, SDR Forum SDRF Workshop on Spectrum Access by TV Band Devices Dearborn, Michigan June 16, 2009. Proposed Testbeds. Test & Measurement Issues Slides provided by Bob Cutler, SDRF Test & Measurement Group

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about 'Proposed Testbeds' - HarrisCezar


An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
slide1

Next Steps Proposed Testbeds Panel Discussion

John ChapinChair, SDR Forum

SDRF Workshop on Spectrum Access by TV Band Devices

Dearborn, Michigan

June 16, 2009

proposed testbeds
Proposed Testbeds
  • Test & Measurement Issues
    • Slides provided by Bob Cutler, SDRF Test & Measurement Group
  • Proposed testbed: Curaçao, Netherlands Antilles
    • Slides provided by Maximilian Sandmann, Vondel Og
  • Proposed testbed: Wilmington, North Carolina
    • Slides provided by Bill Seiz, EUE/Screen Gems
  • NTIA Spectrum Sharing Innovation Test-Bed
cognitive radio the role of test and measurement
Cognitive Radio: The Role of Test and Measurement

Higher Potential For Interference

Lower Spectrum UtilizationLower Capacity

Lower Link Reliability

Lower Potential for Interference

Higher Spectrum Utilization

Higher Capacity

Higher Link Reliability

CR Performance

Position affected by:

PHY Performance

Environment Sensing Performance

Policy Performance

Regulations, and Specifications

Need To Measure:

  • Interference (actual, or potential for)
  • Radio System Performance (capacity, link reliability)
  • Radio Physical Layer Performance (e.g. adjacent channel power)
  • Environment Sensing Performance (spectrum sensing, location sensing)
  • Policy Performance (does the policy over, or under protect)
  • Radio Environment (channel, noise, occupancy)

In order to:

  • Establish regulations and specifications
  • Verify compliance and performance
  • Compare implementations

Need to answer these questions:

What should be measured?

How do you measure it?

What should the specifications be?

Does the radio meet the specifications?

specific t m issues for tvbd spectrum access
Specific T&M issues for TVBD Spectrum Access

Visible effects on DTV receiver picture display

co-channel, adjacent, +/- N channel

Ability to sense wireless microphones

standalone, +/- N channels from strong DTV signal

Sensing of primary signals when other TVBDs are present

Other TVBDs are co-channel, adjacent channel

Channel is congested

Database interactions

protocol correctness

compliance with database control commands

interact as required (time delay, location change)

Efficient channel sharing among multiple TVBDs

Interference distance vs detection distance

Channels shared between personal/portable and fixed TVBDs

Mobile devices

SAFETY

UTILITY

proposed testbeds5
Proposed Testbeds
  • Test & Measurement Issues
    • Slides provided by Bob Cutler, SDRF Test & Measurement Group
  • Proposed testbed: Curaçao, Netherlands Antilles
    • Slides provided by Maximilian Sandmann, Vondel Og
  • Proposed testbed: Wilmington, North Carolina
    • Slides provided by Bill Seiz, EUE/Screen Gems
  • NTIA Spectrum Sharing Innovation Test-Bed
proposed testbed cura ao netherlands antilles
Proposed testbed: Curaçao, Netherlands Antilles

The Dutch Antilles intend to become a leader in Cognitive Radio.

To achieve this goal a collaborative effort under leadership of the Delft University of Technology has been initiated.

Goal: develop an heterogeneous auction-based DSA (Dynamic Spectrum Access) system. Initially in the UHF TV band.

  • The Antillean regulator has proposed an island-wide testbed on the island of Curaçao for private companies and research institutes.
  • The testbed will use 701 – 789 Mhz.

http://www.sdrforum.org/pages/san_diego_09_dropbox/

https://mentor.ieee.org/1900.6/dcn/09/6-09-0033-01-0000-doi-in-the-netherlands-antilles-on-tvws.ppt (more recent)

cura ao testing environment
Curaçao Testing Environment

Curaçao is the largest of the three so called ABC islands (for Aruba, Bonaire, and Curaçao) of the Leeward Antilles. It has a land area of 444 square kilometers (171 square miles). As of 1 January 2008, it had a population of 140,796. Almost 600,000 people visit Curaçao annually, mostly from Western Europe and the Americas.

The whole island is available for the testbed.

The Ministry of Transport intends to provide facilities to support cognitive radio tests. Those facilities can be used to simulate the RF environment of different regions of the world.

Furthermore the Antillean government intends to “group test” common challenges that are being faced in developing (TVBD) applications for next generation networks.

It will allow use of equipment by the local population if this helps Cognitive initiatives to gather valuable data and reach their point of maturity earlier.

At the moment additional support from the technical faculty of the University of the Dutch Antilles is being discussed.

We ask for input from the industry to help define the required facilities.

proposed testbeds9
Proposed Testbeds
  • Test & Measurement Issues
    • Slides provided by Bob Cutler, SDRF Test & Measurement Group
  • Proposed testbed: Curaçao, Netherlands Antilles
    • Slides provided by Maximilian Sandmann, Vondel Og
  • Proposed testbed: Wilmington, North Carolina
    • Slides provided by Bill Seiz, EUE/Screen Gems
  • NTIA Spectrum Sharing Innovation Test-Bed
proposed testbed wilmington nc
Proposed testbed: Wilmington, NC
  • Wilmington, North Carolina - First in DTV
    • Largest Television and film production facility outside of California
    • 50 acre complex with various structures and diverse typography
  • Testbed features
    • Multiple wireless microphone systems and a dedicated ATSC transmitter
    • Access to multiple UHF channels prearranged through OET experimental license
    • Comprehensive facilities and staff support
  • Private testing for individual manufacturers
  • Group tests to evaluate TVBD interactions
  • Low-cost access for researchers

www.spectrumtestbed.com

testbed environments at eue screen gems studios
Testbed environments at EUE Screen Gems Studios

Large indoor spaces with grounded metal walls

Regular commercial and residence type structures

also available

“Urban style” outdoor pathshigh multipath & shadowing

Both open land and heavy foliage areavailable on the property

proposed testbeds12
Proposed Testbeds
  • Test & Measurement Issues
    • Slides provided by Bob Cutler, SDRF Test & Measurement Group
  • Proposed testbed: Curaçao, Netherlands Antilles
    • Slides provided by Maximilian Sandmann, Vondel Og
  • Proposed testbed: Wilmington, North Carolina
    • Slides provided by Bill Seiz, EUE/Screen Gems
  • NTIA Spectrum Sharing Innovation Test-Bed
ntia spectrum sharing innovation test bed
NTIA Spectrum Sharing Innovation Test-Bed
  • Goals
    • Develop service rules, test signals, compliance measurement techniques
    • Comply with mandate from Presidential Spectrum Policy Initiative
  • Spectrum
    • 410 – 420 MHz (NTIA)
    • 10 MHz in 470 – 512 Mhz (FCC)
  • Incumbents
    • LMR – analog FM, trunked
    • APCO Project25 – digital TDMA
  • Status
    • 5 companies and 1 university have submitted devices
    • First device in lab tests at ITS Boulder
    • Second device to enter lab in July/August
  • http://www.ntia.doc.gov/ntiahome/frnotices/2006/spectrumshare/comments.htm
panel discussion on next steps
Panel Discussion on Next Steps
  • Panelists
    • Kiran Challapali, Philips / CogNeA
    • Gerald Chouinard, CRC / 802.22
    • Mark McHenry, Shared Spectrum Corporation
  • Challenges
  • Coordination
  • Role of the SDR Forum
  • General Q&A
ad