Peak-to-Average Power Ratio Reduction in FBMC-OQAM System

Varghese, N. V.; Chunkath, Job; Sheeba, V. S.

doi:10.1109/icacc.2014.74

Cited by 22 publications

(9 citation statements)

References 13 publications

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“…PAPR performance of RPSDM is lower by 2 dB than the OFDM. Table 2 tabulates the worst case PAPR performance of OFDM (30) and RPSDM (31) respectively. As it is evident from (30) that if N is some integer power of 2 (2 m p = 8, 16, …512) then PAPR increases by 3 dB for every increment of m p by 1.…”

Section: Results and Comparisonmentioning

confidence: 99%

“…To improve the spectral efficiency and latency of RPSDM, filtering methods like FBMC are needed. However, RPSDM provides low PAPR and computational efficiency compared to conventional FBMC [29], [30]. It is seen that the PAPR of FBMC [29] for N = 64 subcarriers with CCDF probability of 10 −3 is around 16 dB which is much higher than OFDM (around 10 dB), whereas it is 8dB for RPSDM.…”

Section: Comparison Of Ofdm and Rpsdmmentioning

confidence: 99%

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Ramanujan periodic subspace division multiplexing

2019

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In this paper, a new modulation method defined as Ramanujan Periodic Subspace Division Multiplexing (RPSDM) is proposed using Ramanujan subspaces. Each subspace contains an integer valued Ramanujan Sum (RS) and its circular downshifts as a basis. The proposed RPSDM decomposes the linear time-invariant wireless channels into a Toeplitz stair block diagonal matrices, whereas Orthogonal Frequency Division Multiplexing (OFDM) decompose the same into diagonal. Advantages of such structured subspaces representation are studied and compared with an OFDM representation in terms of Peak-Average Power Ratio (PAPR) and Bit-Error-Rate (BER). Zero Forcing (ZF) and Minimum Mean Square Error (MMSE) detectors are applied to evaluate the performance of OFDM and RPSDM techniques. Finally, the simulation results show that the proposed design (with an additional receiver complexity) outperforms OFDM under both detectors.Identify applicable funding agency here. If none, delete this.

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Section: Results and Comparisonmentioning

confidence: 99%

Section: Comparison Of Ofdm and Rpsdmmentioning

confidence: 99%

Ramanujan periodic subspace division multiplexing

2019

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“…The 𝜇-Law technique is used in this paper to reduce the PAPR of the OFDM-DCSK system. At the end of the transmitter, the companding function applied is given by ( 9) [26].…”

Section: Nonlinear Companding Techniquementioning

confidence: 99%

Hybrid clipping and companding techniques based peak to average power ratio reduction in orthogonal frequency division multiplexing based differential chaos shift keying system

Alqassab

Hasan

2022

IJECE

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In this paper, a hybrid approach using clipping and companding techniques is introduced to reduce the peak to average power ratio (PAPR) of orthogonal frequency division multiplexing based differential chaos shift keying (OFDM-DCSK), which is the major drawback of the OFDM-DCSK. The hybrid function is processed at the end of the transmitter before transmitting the signal. However, there is no need for an inverse function at the receiver, which decreases the system complexity. Several techniques have been proposed in the literature for decreasing the PAPR value. Clipping and companding are active methods in terms of reducing the PAPR. Finally, the PAPR reduction and bit error rate (BER) performances are evaluated. The simulation results show that this technique gives better performance as compared with the clipping and companding techniques.

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“…It supports Internet of Tings enabled devices, machine to machine communication and smart vehicles, and high speed data rate ranging up to 10 Gbps and above [4]. To achieve the requirements of future wireless communication, diferent multicarrier modulation techniques [5] like Filter Bank Multicarrier with Ofset Quadrature Amplitude Modulation (FBMC/OQAM) [6,7], Filter Bank Multicarrier with Quadrature Amplitude Modulation (FBMC/QAM) [8], Universal Filter Multicarrier (UFMC) [9], Filtered-OFDM (F-OFDM) [5], and Weighted Overlap and Added-OFDM (WOLA-OFDM) [10] are proposed by diferent researchers as candidate waveforms.…”

Section: Introductionmentioning

confidence: 99%

BER and PSD Improvement of FBMC with Higher Order QAM Using Hermite Filter for 5G Wireless Communication and beyond

Dumari

Gelmecha

Shakya

et al. 2023

Journal of Electrical and Computer Engineering

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Nowadays, multicarrier modulation schemes are being widely used in wireless communication system than single-carrier modulation techniques. Single-carrier modulation schemes are less capable of dealing with multipath fading channels than multicarrier modulation schemes, which results in lower spectral efficiency. Multicarrier modulation schemes have the ability to overcome multipath fading channels. Multicarrier modulation technique currently used in 4G technology in many countries is OFDM and it is easy for implementation, immune to interference, and provide fast data rate. However, the rising users demand on wireless communication resulted in need for further advancement of wireless communication system. The present OFDM transmission does not fulfill the requirements of 5G wireless communication system and beyond due to major limitations such as out of band emission and usage of cyclic prefix. To overcome the challenges of OFDM, different modulation schemes like Filter Bank Multicarrier with Offset-QAM, Filter Bank Multicarrier with QAM, Universal Filter Multicarrier, Filtered-OFDM, and Weighted Overlap and Added-OFDM are proposed. In this study, the Filter Bank Multicarrier with QAM using Hermite prototype filter is proposed to overcome drawbacks of OFDM and all other proposed waveforms. The performances of each multicarrier technique are analyzed based on power spectral density and bit error rate. Simulation result shows that the power spectral density of FBMC with QAM using Hermite filter resulted in 4.7 dB reduction of out of band emission compared to FBMC with QAM using PHYDYAS filter. The bit error rate is also reduced for Vehicular A, Vehicular B, Pedestrian A, and Pedestrian B channel models.

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Peak-to-Average Power Ratio Reduction in FBMC-OQAM System

Cited by 22 publications

References 13 publications

Ramanujan periodic subspace division multiplexing

Ramanujan periodic subspace division multiplexing

Hybrid clipping and companding techniques based peak to average power ratio reduction in orthogonal frequency division multiplexing based differential chaos shift keying system

BER and PSD Improvement of FBMC with Higher Order QAM Using Hermite Filter for 5G Wireless Communication and beyond

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