papr
RSS paprA New Distribution Bound and Reduction Scheme for OFDM PAPR
White Paper A new simple upper bound on the PAPR distribution of an OFDM signal is proposed and simulations show that it is tight when the subcarrier number is greater than 64. In addition, a PAPR reduction scheme named selective mapping-dynamic constellation... [03 Jul 2008]
Spreading Sequences for Uplink and Downlink MC-CDMA Systems: PAPR and MAI Minimization
White Paper This paper deals with spreading sequences selection for downlink and uplink Multi-Carrier Code Division Multiple Access (MC-CDMA) systems with the aim of minimizing the dynamic range of the transmitted multicarrier signal envelope and the multiple... [03 Jul 2008]
Minimizing the Peak-to-Average Power Ratio of OFDM Signals Via Convex Optimization
White Paper Efficient OFDM transmission has been limited by power amplifier (PA) non-linearity combined with OFDM's high peak-to-average power ratio (PAPR). In this paper it is shown that minimizing the PAPR of an OFDM signal, subject to constraints on... [03 Jul 2008]
Comparison of Low Complexity Clipping Algorithms for OFDM
White Paper This paper explores low complexity clipping of an Orthogonal Frequency Division Multiplexing (OFDM) transmit signal for critically sampled or oversampled complex data as a solution for the Peak to Average Power Reduction (PAPR) problem. [03 Jul 2008]
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). A design for the generation of wideband code division multiple access (WCDMA) waveforms in digital radios is... [03 Jul 2008]
Constant Envelope Binary OFDM Phase Modulation
White Paper These constant envelope OFDM based signals guarantee a 0dB PAPR thus are well suited for efficient nonlinear power amplification. In this paper a new approach is presented to alleviate the undesirable effects due to the high peak-to-average power... [10 Apr 2008]
A Low Complexity Tree Algorithm for PTS-Based PAPR Reduction in Wireless OFDM
White Paper However, its high Peak-to-Average-Power Ratio (PAPR) causes nonlinear distortion thus limiting the efficiency of the transmitter's High Power Amplifier. Among the approaches proposed for PAPR mitigation, the Partial Transmit Sequence (PTS... [31 Aug 2007]
A Low Complexity Tree Algorithm for PTS-Based PAPR Reduction in Wireless OFDM
However, its high Peak-to-Average-Power Ratio (PAPR) causes nonlinear distortion thus limiting the efficiency of the transmitter's High Power Amplifier. Among the approaches proposed for PAPR mitigation, the Partial Transmit Sequence (PTS... [10 Aug 2007]
A Low Complexity Tree Algorithm for PTS-Based PAPR Reduction in Wireless OFDM
White Paper However, its high Peak-to-Average-Power Ratio (PAPR) causes nonlinear distortion thus limiting the efficiency of the transmitter's High Power Amplifier. Among the approaches proposed for PAPR mitigation, the Partial Transmit Sequence (PTS... [10 Aug 2007]
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]
PAPR Reduction of OFDM Signal Using Turbo Coding and Selective Mapping
White Paper The main implementation disadvantage of OFDM is the possibility of high Peak to Average Power Ratio (PAPR). This paper presents a novel technique to reduce the PAPR using turbo coding and SeLective Mapping (SLM). [18 Apr 2007]
PAPR Reduction of OFDM by Random Phase Updating
White Paper The novel random phase updating algorithm for the Peak-to-Average Power Ratio (PAPR) reduction of the OFDM signal is addressed. In this algorithm the phase of each subcarrier is updated by a random increment until the PAPR goes below a certain... [18 Apr 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]
OFDM Link Performance With Companding for PAPR Reduction in the Presence of Non-Linear Amplification
White Paper Use of companding for Peak-to-Average-Power Ratio (PAPR) control is explored for a link involving a non-linear transmit power amplifier with Orthogonal Frequency Division Multiplexing (OFDM). Specifically, the objective of the study was to... [13 Apr 2007]
