2016
DOI: 10.1007/s11277-016-3874-8
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Spectral Precoding for Out-of-Band Power Reduction Under Condition Number Constraint in OFDM-Based Systems

Abstract: Due to the flexibility in spectrum shaping, orthogonal frequency division multiplexing (OFDM) is a promising technique for dynamic spectrum access. However, the out-of-band (OOB) power radiation of OFDM introduces significant interference to the adjacent users. This problem is serious in cognitive radio (CR) networks, which enables the secondary system to access the instantaneous spectrum hole.Existing methods either do not effectively reduce the OOB power leakage or introduce significant biterror-rate (BER) p… Show more

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Cited by 7 publications
(2 citation statements)
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“…In the matlab simulation a multipath Rayleigh fading channel under the COST 207 typical urban six-path (TU6) channel model is applied whose power delay profile is shown in Table 5. To illustrate the OOB power reduction, the PSD is obtaining from the power of DFT coefficients of time-domain OFDM signal [20]. The following subsections include demonstration of sidelobes suppression, PAPR and ISI reduction.…”
Section: Numerical Results and Simulationmentioning
confidence: 99%
“…In the matlab simulation a multipath Rayleigh fading channel under the COST 207 typical urban six-path (TU6) channel model is applied whose power delay profile is shown in Table 5. To illustrate the OOB power reduction, the PSD is obtaining from the power of DFT coefficients of time-domain OFDM signal [20]. The following subsections include demonstration of sidelobes suppression, PAPR and ISI reduction.…”
Section: Numerical Results and Simulationmentioning
confidence: 99%
“…www.astesj.com Figure 10: PSD of (a) traditional OFDM scheme [22], (b)proposed modified STC-Shaped system scheme and (c) FBMC scheme [23,24].…”
Section: Papr Efficiencymentioning
confidence: 99%