Low PAPR FBMC

Na, Dongjun; Choi, Kwonhue

doi:10.1109/twc.2017.2764028

Cited by 77 publications

(71 citation statements)

References 20 publications

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“…It was shown in Na and Choi that DFT‐s‐FBMC leads to different PAPR values depending on the phase shift pattern (

{normalΦ}_{m, n}

in equation ) and defining it as

{normalΦ}_{m, n} = false(m + n false) \frac{π}{2} - m n π

is optimum in this regard. A GDFT‐based improvement of Na and Choi was recently achieved in Aboul‐Dahab et al, though at the cost of additional computational complexity. Nissel et al proposes to prune the spreading DFT, in a manner similar to zero‐tail DFT‐s‐OFDM, however with much less overhead.…”

Section: Single‐ and Multi‐carrier Multiple Accessmentioning

confidence: 99%

“…The effect of the guard subcarriers can (if necessary) be replaced by a frequency CP . A reduction in PAPR compared to Na and Choi is achieved that is much more significant than what is attained by Na and Choi compared to DFT‐s‐FBMC with no consideration for phase shifts, especially when a frequency CP is employed. However, this pruned DFT‐s‐FBMC method requires the overlapping factor of the prototype filter to be close to 1, which prevents its application in transceivers with long filters (crucial for better spectral localization) such as the PHYDYAS one with

K = 4

considered here.…”

Section: Single‐ and Multi‐carrier Multiple Accessmentioning

confidence: 99%

“…However, this pruned DFT‐s‐FBMC method requires the overlapping factor of the prototype filter to be close to 1, which prevents its application in transceivers with long filters (crucial for better spectral localization) such as the PHYDYAS one with

K = 4

considered here. We therefore adopt the DFT‐s‐FBMC scheme of Na and Choi in our study. Additional PAPR reduction can be achieved through an appropriate candidate selection method, which however requires the transmission of side information (SI) along with the data symbols or its embedding into the signal, with the additional complexity of having to estimate it at the receiver, and is thus not incorporated in our simulations.…”

Section: Single‐ and Multi‐carrier Multiple Accessmentioning

confidence: 99%

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Filter bank‐based multiple access in next‐generation satellite uplinks: A DVB‐RCS2‐based experimental study

Dalakas

Kofidis

2020

Satell Commun Network

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In the context of the on-going evolution of satellite communications (SatCom) systems to their next generation, and in the direction of their integration with fifth generation (5G) terrestrial networks, it is of interest to study in depth the applicability in realistic SatCom of waveforms that have shown promise to meet the 5G requirements. This paper presents a comparative study, based on total degradation (TD) over a range of output back-off (OBO) values, on out-of-band emission and spectral efficiency, of frequency division multiple access (FDMA) schemes employing offset quadrature amplitude modulation-based filter bank multi-carrier (FBMC /OQAM), classical orthogonal FDMA (OFDMA), and their single-carrier counterparts to illustrate the potential gains from the integration of the FBMC waveforms in the satellite context and standards. The air interface simulated follows the digital video broadcasting (DVB) family of standards for the satellite uplink, considering both time and frequency synchronization impairments and two typical input constellations. Our results confirm the superiority of the single-carrier (SC) schemes in such a nonlinear environment. The SC-FBMC waveform is shown to be the most practical candidate since it is shown to attain a TD performance similar to that of SC-OFDM at absolutely no cost in spectral efficiency.

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“…It was shown in Na and Choi that DFT‐s‐FBMC leads to different PAPR values depending on the phase shift pattern (

{normalΦ}_{m, n}

in equation ) and defining it as

{normalΦ}_{m, n} = false(m + n false) \frac{π}{2} - m n π

Section: Single‐ and Multi‐carrier Multiple Accessmentioning

confidence: 99%

K = 4

considered here.…”

Section: Single‐ and Multi‐carrier Multiple Accessmentioning

confidence: 99%

K = 4

Section: Single‐ and Multi‐carrier Multiple Accessmentioning

confidence: 99%

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Filter bank‐based multiple access in next‐generation satellite uplinks: A DVB‐RCS2‐based experimental study

Dalakas

Kofidis

2020

Satell Commun Network

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“…Remark 1: It is noted that Q 1 (a, b) is strictly increasing with a and strictly decreasing with b [37]. Therefore, for fixed α, G, M, T , and prototype filter g(t), (16) indicates that it is desirable to have a preamble sequence c with smaller ν in order to reduce the IAPR. As the PAPR is defined as the maximum of IAPRs over the time window W n , a smaller ν will also lead to a lower PAPR.…”

Section: Letmentioning

confidence: 99%

“…As shown in (16), the IAPR is also influenced by σ 2 , the variance of the data interference [see (11)]. The amount of σ 2 can be controlled by G, the number of zero guard symbols.…”

Section: B Application Of Golay Sequences As Fbmc Preamblesmentioning

confidence: 99%

Low-PAPR Preamble Design for FBMC Systems

Liu

Xiao

2019

IEEE Trans. Veh. Technol.

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This paper presents a family of training preambles for offset QAM (OQAM) based filter-bank multi-carrier (FBMC) modulations with low peak-to-average power ratio (PAPR) property. We propose to use binary Golay sequences as FBMC preambles and analyze the maximum PAPR for different numbers of zero guard symbols. For both the PHYDYAS and Hermite prototype filters with overlapping factor of 4, as an illustration of the proposed preambles, we show that a preamble PAPR less than 3 dB can be achieved with probability of one, when three or more zero guard symbols are inserted in the vicinity of each preamble.

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