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CDMA Waveform Generation for Digital Radios
White Paper Graphs demonstrate the effect of pulse shaping and CDMA user loading on the transmitted waveform's peak-to-average power ratio (PAPR). The digital modulator performs pulse shaping on input complex data streams and then interpolates those signals to... [03 Jul 2008]
PAPR Reduction in OFDM Systems Using Constellation Shaping
White Paper Orthogonal Frequency Division Multiplexing (OFDM) is a multicarrier transmission technique, which is widely adopted in different communication applications. OFDM prevents Inter Symbol Interference (ISI) by inserting a guard interval and mitigates... [24 Jul 2007]
Integer-Based Constellation Shaping Method for PAPR Reduction in OFDM Systems
White Paper In this paper, the problem of reducing the Peak to Average Power Ratio (PAPR) in an Orthogonal Frequency Division Multiplexing (OFDM) system is considered. Then, the paper further reduces the PAPR by applying the Selective Mapping technique. [18 Apr 2007]
Peak-to-Average Power Ratio Reduction of OFDM Signals Using Pulse Shaping
White Paper This paper proposes an efficient technique for reducing the PAPR of OFDM signals. The improved statistics of the PAPR in the transmitted signal is demonstrated through numerical results for some sets of time waveforms. [18 Apr 2007]
