Feasibility of Spectrum Sharing Between Airborne Weather Radar and Wireless Local Area Networks

dc.contributor.authorZarookian, Ruffyen
dc.contributor.committeechairPratt, Timothy J.en
dc.contributor.committeememberBuehrer, R. Michaelen
dc.contributor.committeememberJacobs, Iraen
dc.contributor.departmentElectrical and Computer Engineeringen
dc.date.accessioned2014-03-14T20:48:26Zen
dc.date.adate2007-12-12en
dc.date.available2014-03-14T20:48:26Zen
dc.date.issued2007-11-14en
dc.date.rdate2007-12-12en
dc.date.sdate2007-11-28en
dc.description.abstractEmerging technologies such as wireless local area networks and cellular telephones have dramatically increased the use of wireless communications services within the last 10 years. The shortage of available spectrum exists due to increasing demand for wireless services and current spectrum allocation regulations. To alleviate this shortage, Research aims to improve spectral efficiency and to allow spectrum sharing between separately managed and non-coordinating communications systems. This thesis explores the feasibility of spectrum sharing between airborne weather radar and wireless local area networks at 9.3 GHz – 9.5 GHz. Characteristics of flight paths of aircraft using airborne weather radar and the low duty cycle of radar transmissions offer unique opportunities for spectrum sharing. But it was found that the extremely sensitive receivers provide challenges for designing a communications system meant for widespread use. The probability of causing harmful interference to airborne weather radar is too great for most types of wireless local area networks, but a direct sequence spread spectrum scheme could share spectrum with airborne weather radar. Bit errors in wireless local area network links caused by airborne weather radar interference do not significantly decrease the performance of the wireless local area network system. The distribution of interference outside of the airborne weather radar receiver by using direct sequence spread spectrum combined with the acceptable bit error rates indicate that while spectrum sharing between airborne weather radar and wireless local area network at 9.3 GHz – 9.5 GHz is not feasible, direct sequence spread spectrum systems can share spectrum with airborne weather radars under more limited assumptions.en
dc.description.degreeMaster of Scienceen
dc.identifier.otheretd-11282007-114731en
dc.identifier.sourceurlhttp://scholar.lib.vt.edu/theses/available/etd-11282007-114731/en
dc.identifier.urihttp://hdl.handle.net/10919/35841en
dc.publisherVirginia Techen
dc.relation.haspartzarookian_thesis_11_14_2007.pdfen
dc.relation.haspartzarookian_vitae_11_14_2007.pdfen
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subjectAirborne Weather Radaren
dc.subjectInterferenceen
dc.subjectRadaren
dc.subjectSpectrum Sharingen
dc.subjectWireless Local Area Networksen
dc.subjectX Banden
dc.subjectSHF Banden
dc.subjectWireless Communicationsen
dc.titleFeasibility of Spectrum Sharing Between Airborne Weather Radar and Wireless Local Area Networksen
dc.typeThesisen
thesis.degree.disciplineElectrical and Computer Engineeringen
thesis.degree.grantorVirginia Polytechnic Institute and State Universityen
thesis.degree.levelmastersen
thesis.degree.nameMaster of Scienceen
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