WATCH: Enabling WiFi in Active TV Channels

Simple item page
dc.contributor.advisorKnightly, Edward W.en_US
dc.contributor.committeeMemberZhong, Linen_US
dc.contributor.committeeMemberAazhang, Behnaamen_US
dc.creatorZhang, Xuen_US
dc.date.accessioned2016-01-07T22:17:02Zen_US
dc.date.available2016-01-07T22:17:02Zen_US
dc.date.created2014-12en_US
dc.date.issued2014-10-08en_US
dc.date.submittedDecember 2014en_US
dc.date.updated2016-01-07T22:17:02Zen_US
dc.description.abstract"White spaceā€ model allows TV channels that are not being used regionally by a TV broadcaster to be re-purposed for secondary access. Unfortunately, populated areas have few these unused channels. Nonetheless, Nielsen data show severe under-utilization with vast regions in range of TV transmitters having no active TV receivers even at peak TV viewing time. In this thesis, I present the design, implementation, and evaluation of WATCH (WiFi in Active TV CHannels), the first system to (i) enable secondary WiFi transmission in the presence of kilowatt-scale TV transmitters by employing WATCH-IC (Interference Cancellation) and CAT (Constructive Addition Transmission); (ii) protect active TV receivers by employing their spatial-spectral requirements. With FCC permission to test WATCH implementation, I show that WATCH can provide at least 6.0 times the total achievable rate to 4 watt secondary devices compared to white space model, while increasing the TV channel switching time by less than 5%.en_US
dc.format.mimetypeapplication/pdfen_US
dc.identifier.citationZhang, Xu. "WATCH: Enabling WiFi in Active TV Channels." (2014) Masterā€™s Thesis, Rice University. <a href="https://hdl.handle.net/1911/87788">https://hdl.handle.net/1911/87788</a>.en_US
dc.identifier.urihttps://hdl.handle.net/1911/87788en_US
dc.language.isoengen_US
dc.rightsCopyright is held by the author, unless otherwise indicated. Permission to reuse, publish, or reproduce the work beyond the bounds of fair use or other exemptions to copyright law must be obtained from the copyright holder.en_US
dc.subjectSpectrum re-useen_US
dc.subjectTV white spaceen_US
dc.subjectDatabase controlleren_US
dc.subjectTV receiver feedbacken_US
dc.subjectInterference cancellationen_US
dc.subjectTransmit beamformingen_US
dc.titleWATCH: Enabling WiFi in Active TV Channelsen_US
dc.typeThesisen_US
dc.type.materialTexten_US
thesis.degree.departmentElectrical and Computer Engineeringen_US
thesis.degree.disciplineEngineeringen_US
thesis.degree.grantorRice Universityen_US
thesis.degree.levelMastersen_US
thesis.degree.nameMaster of Scienceen_US
Files
Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
ZHANG-DOCUMENT-2014.pdf
Size:
1.26 MB
Format:
Adobe Portable Document Format
Download
License bundle
Now showing 1 - 2 of 2
No Thumbnail Available
Name:
PROQUEST_LICENSE.txt
Size:
5.84 KB
Format:
Plain Text
Description:
Download
No Thumbnail Available
Name:
LICENSE.txt
Size:
2.6 KB
Format:
Plain Text
Description:
Download
Collections
Rice University Theses and Dissertations
ECE Theses and Dissertations