Results 31 to 40 of about 249,640 (270)
Correlative coding with clipping and filtering technique in OFDM Systems [PDF]
, 2003 The major setbacks of Orthogonal Frequency Multiplexing (OFDM) is its peak-to-average power ratio (PAPR) and intercarrier interference (ICI). The occurrence of these factors restricts its application.
Fisal, Norsheila, Yusof, S. K.
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A peak-to-average power ratio reduction method for mixed-numerology multi-carrier systems
Dianxin kexue, 2023 In order to support diverse service demands of communication scenarios, 5G adopts the mixed-numerology system based on orthogonal frequency division multiplexing (OFDM).The mixed-numerology systems still have the problem of high peak-to-average power ...
Nan SHI +4 more
doaj +2 more sources
IEEE Access, 2019 Reliable wireless data transmission in intelligent transportation systems (ITS) has drawn a wide concern in recent years. As an efficient wireless transmission technology, multi-carrier communication (MCM) finds its way in many applications. However, the
Jun Hou +5 more
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Closed-form approximations of the peak-to-average power ratio distribution for multi-carrier modulation and their applications [PDF]
, 2014 International audienceThe theoretical analysis of the peak-to-average power ratio (PAPR) distribution for an orthogonal frequency division multiplexing (OFDM) system, depends on the particular waveform considered in the modulation system.
Chafii, Marwa +2 more
core +3 more sources
Peak-to-average power ratio analysis in multicode CDMA [PDF]
Proceedings IEEE 56th Vehicular Technology Conference, 2003 This paper analyzes the peak-to-average power ratio (PAPR) problem in multicode-code division multiple access (MC-CDMA) systems. The statistical distribution of PAPR is derived and the achievable PAPR reduction for a given code rate is estimated. We show that the PAPR in MC-CDMA communications systems can be reduced by partial transmit sequence (PTS ...
K. Sathananthan, C. Tellambura
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Partial Transmit Sequences for Peak-to-Average Power Ratio Reduction in Multiantenna OFDM
EURASIP Journal on Wireless Communications and Networking, 2007 The major drawback of orthogonal frequency-division multiplexing (OFDM) is its high peak-to-average power ratio (PAR), which gets even more substantial if a transmitter with multiple antennas is considered.
Christian Siegl, Robert F. H. Fischer
doaj +1 more source
Analysis of PAPR in optical OFDM systems with grouped LEDs [PDF]
, 2017 The need for multiple transmit chains poses a major challenge in optical orthogonal frequency division multiplexing (OFDM) system utilising grouped light emitting diodes (LEDs) for the purpose of peak-to-average power ratio (PAPR) reduction. Thus, recent
Offiong, Funmilayo B. +2 more
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Journal of Communications Software and Systems, 2022 When dealing with the phenomenon of unexpected high peak-to-average power ratio (PAPR) caused by multicarrer techniques, it is rarely to find a proposed solution that addresses the most important challenges together, that are; reducing the PAPR ...
Mohammed I. Al-Rayif
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On the peak-to-average power ratio of M-sequences
Finite Fields and Their Applications, 2006 Let \(\mathbb F_q\), \(q=2^m\), be a finite field with a primitive element \(\alpha\). For \(\beta\in \mathbb F_q^*\), the \(M\)-sequence is: \[ a_k(\beta )=(-1)^{\text{tr}(\beta\alpha^k)},\qquad 0\leq k < q-1, \] where \(\text{tr}\) is the trace form \(\mathbb F_q\) to \(\mathbb F_2\).
Alrod, Idan +2 more
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A Simplified Scheme of Estimation and Cancellation of Companding Noise for Companded Multicarrier Transmission Systems [PDF]
, 2015 Nonlinear companding transform is an efficient method to reduce the high peak-to-average power ratio (PAPR) of multicarrier transmission systems. However, the introduced companding noise greatly degrades the bit-error-rate (BER) performance of the ...
Jian, W. +4 more
core +2 more sources