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Performance Evaluation of the Active Set Algorithm for Peak to Average Ratio Reduction in Wireless OFDM Communication Systems
Ansvarlig organisasjon
2006 (engelsk)Konferansepaper, Publicerat paper (Fagfellevurdert) Published
Abstract [en]

For high speed data transmission over multipath fading channels Orthogonal Frequency Division Multiplexing (OFDM) can be a spectrally efficient multicarrier modulation technique. All OFDM systems suffer from large peak-to-average-power ratio (PAR), which can lead to power inefficiency and nonlinear distortion at the RF portion of the transmitter. Tone reservation method uses reserved tones to generate a peak-canceling signal to lower the PAR of a transmit OFDM block. This paper investigates the recently proposed active-set tone reservation method, for complex-baseband signals, to reduce the PAR in wireless and broadcast systems. When PAR reduction is applied on an OFDM symbol and its PAR level still exceeds the target PAR after reduction this OFDM symbol suffers clipping. Infrequency domain clipping energy spreads across all tones and acts as error power. Simulations are performed to investigate the error power on data tones after active-set method.

sted, utgiver, år, opplag, sider
Clearwater, FL: IEEE , 2006.
Emneord [en]
OFDM, PAR, Wireless Communications
HSV kategori
Identifikatorer
URN: urn:nbn:se:bth-8738ISI: 000246998700053Lokal ID: oai:bth.se:forskinfo6FFF39B31EBF3EC9C12573C6007D884FISBN: 978-1-4244-0848-1 (tryckt)OAI: oai:DiVA.org:bth-8738DiVA, id: diva2:836490
Konferanse
IEEE Wireless and Microwave Technology Conference
Tilgjengelig fra: 2012-09-18 Laget: 2008-01-04 Sist oppdatert: 2015-06-30bibliografisk kontrollert

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Totalt: 51 treff
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