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All Journal ComEngApp : Computer Engineering and Applications Journal
Diptadeep Das
VIT University
Computer Science & IT Engineering

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Peak to Average Power Ratio Reduction in OFDM Using Pulse Shaping Technique Diptadeep Das
Computer Engineering and Applications Journal Vol 5 No 2 (2016)
Publisher : Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (408.059 KB) | DOI: 10.18495/comengapp.v5i2.169

Abstract

Orthogonal Frequency Division Multiplexing (OFDM) is a special type of multicarrier modulation in which a signal is split into several narrowband channels at different frequencies. Here data is divided into parallel data streams each transmitted on a separate band. One of the major drawbacks of multicarrier transmission is the high peak-to-average power ratio (PAPR) of the transmit signal. Nyquist filters provide ISI-free transmission. In this paper we are going to propose some new filters which can formulated in an effort to reduce the peak-to-average power ratio (PAPR) of the baseband signal. While maintaining the same excess bandwidth and the zero inter-symbol interference condition. The proposed filters contain various parameters which gives an additional degree of freedom to minimize PAPR for a given roll-off factor α .
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