Results 201 to 210 of about 255,866 (259)
Some of the next articles are maybe not open access.
Peak-to-Average Power Ratio of OTFS Modulation
IEEE Communications Letters, 2019In this letter, we analyze the peak-to-average power ratio (PAPR) of orthogonal time frequency space modulation (OTFS) waveform. Towards this, we consider modulation symbols on an $N\times M$ delay-Doppler grid, where $N$ and $M$ are the number of Doppler and delay bins, respectively.
G. D. Surabhi +2 more
openaire +2 more sources
On the distribution of the peak-to-average power ratio in OFDM signals
IEEE Transactions on Communications, 2001Summary: The distribution of the peak-to-average power ratio (PAPR) in strictly band-limited orthogonal frequency-division multiplexing (OFDM) signals is studied. Assuming that the baseband OFDM signal is characterized as a band-limited complex Gaussian process, we first attempt to derive the exact distribution of the PAPR in the band-limited OFDM ...
Hideki Ochiai, Hideki Imai
openaire +1 more source
DMT signals with low peak-to-average power ratio
Proceedings IEEE International Symposium on Computers and Communications (Cat. No.PR00250), 2003This contribution proposes a new family of methods to reduce the peak-to-average power ratio (PAR) in discrete multi-tone (DMT) and orthogonal frequency division multiplexing (OFDM) systems. This method avoids the use of extra inverse fast Fourier transformations (IFFT) as were used in some previously published techniques, but instead is based on ...
Zekri, Mohamed +2 more
openaire +2 more sources
Analysis of the Peak-To-Average Power Ratio of the Oversampled Ofdm
2006 IEEE International Conference on Acoustics Speed and Signal Processing Proceedings, 2006The oversampled OFDM modulation is a possible alternative to conventional OFDM for the transmission of signals over multipath fading channels. Indeed with oversampled OFDM, appropriate pulse-shaping can be introduced to fight against time and frequency dispersion.
Alexandre Skrzypczak +2 more
openaire +1 more source
Calculation of peak-to-average power ratio in DVB-T
47th International Symposium ELMAR, 2005., 2005Extremely high peak power values are the major problem in digital terrestrial television (DVB-T). They are caused by multi-carrier modulation COFDM (Coded Orthogonal Frequency Division Multiplex). This paper contains analysis of this problem from the aspect of theoretical peak power maximum and statistical analysis of the problem where DVB-T parameters
Perčin, Domagoj +2 more
openaire +2 more sources
Analysis of the Peak-To-Average Power Ratio for OFDM/OQAM
2006 IEEE 7th Workshop on Signal Processing Advances in Wireless Communications, 2006OFDM/OQAM is now a recognized alternative to conventional OFDM for the transmission of signals over multipath fading channels. Indeed with OFDM/OQAM an appropriate pulse-shaping can be introduced to fight against time and frequency dispersion. This paper focuses on a theoretical and experimental analysis of the peak-to-average power ratio (PAPR) for ...
Skrzypczack, Alexandre +2 more
openaire +2 more sources
Methods for Peak to Average Power Ratio Reduction on SCFDMA
Proceedings of the SouthEast European Design Automation, Computer Engineering, Computer Networks and Social Media Conference, 2016Single Carrier Frequency Division Multiple Access (SCFDMA) is currently adopted by 3GPP in the LTE cellular systems for the uplink due to its high data rate and low peak-to-average power-ratio (PAPR). In this work, the PAPR for IFDMA (Interleaved Frequency Division Multiple Access), LFDMA (Localized Frequency Division Multiple Access), and DFDMA ...
Athanasios Bimpiris, Angelos Michalas
openaire +1 more source
On Peak-to-Average Power Ratio Optimization for Coded APSK
2018 15th International Symposium on Wireless Communication Systems (ISWCS), 2018The symmetric information rate is used to define the relationship between the APSK constellation parameters, the code rate, and the average and peak E b /N 0 . Minimizing the average E b /N 0 reproduces the DVB-S2 constellation parameters for 16- and 32-APSK.
Farah Arabian +4 more
openaire +1 more source