Presentation 2012-10-17
Improved CR Spectrum Sensing Performance with Lower ACLR GFDM Signals(Workshop on QoS & Mobility in Cognitive Communications)
Rohit DATTA, Gerhard FETTWEIS,
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Abstract(in English) Generalized Frequency Division Multiplexing (GFDM) with its flexible pulse shaping filters can provide extremely low out of band leakage to adjacent legacy channels. This makes it an attractive choice for a PHY layer of cognitive radios operating in fragmented TV white spaces. Introducing zero padding to the transmission data block significantly reduces the said out of band leakage even further. Primary, incumbent signals can now be protected with a geo-location database query mechanism. Even then, sensing opportunistic users operating in the same frequency band is important in cognitive radio operations. In this paper, a simulation based study has been performed to compare GFDM matched filter based sensing characteristics with traditional orthogonal frequency division multiplexing (OFDM) sensing receiver operating characteristic (ROC) curves. Sensing with a GFDM based cognitive radio receiver shows better sensing performance. If we incorporate the improved lower ACLR pulse, then the sensing characteristic curves become even better.
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Keyword(in English) Cognitive Radio / Flexible PHY / Low ACLR / Opportunistic Access / Spectrum Sensing
Paper # SR2012-46
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Committee SR
Conference Date 2012/10/10(1days)
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Title (in Japanese) (See Japanese page)
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Title (in English) Improved CR Spectrum Sensing Performance with Lower ACLR GFDM Signals(Workshop on QoS & Mobility in Cognitive Communications)
Sub Title (in English)
Keyword(1) Cognitive Radio
Keyword(2) Flexible PHY
Keyword(3) Low ACLR
Keyword(4) Opportunistic Access
Keyword(5) Spectrum Sensing
1st Author's Name Rohit DATTA
1st Author's Affiliation Vodafone Chair MNS()
2nd Author's Name Gerhard FETTWEIS
2nd Author's Affiliation Vodafone Chair MNS
Date 2012-10-17
Paper # SR2012-46
Volume (vol) vol.112
Number (no) 240
Page pp.pp.-
#Pages 6
Date of Issue