5G: performance and evaluation of FS‐FBMC against OFDM for high data rate applications at 60 GHz

Gomes, Rodolfo; Reis, João R.; Al-Daher, Zaid; Hammoudeh, Akram; Caldeirinha, Rafael F. S.

doi:10.1049/iet-spr.2016.0671

Cited by 18 publications

(10 citation statements)

References 19 publications

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“…′ is the transpose operator and the th symbol over th sub-carrier is denoted , . It is noticed that in an OQAM-FBMC system, real symbols are transmitted at interval 2 [8], where, is the time period of an OQAM-FBMC symbol. The OQAM mapping of the complex input symbol vectors…”

Section: Model Systemmentioning

confidence: 99%

Low Complexity Transceiver Design for FBMC-OQAM System for Future Generation Wireless Communication

Mecheri¹,

Talbi²,

Lakhssassi³

et al. 2020

JEE

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Section: Model Systemmentioning

confidence: 99%

Low Complexity Transceiver Design for FBMC-OQAM System for Future Generation Wireless Communication

Mecheri¹,

Talbi²,

Lakhssassi³

et al. 2020

JEE

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“…Fig. 2 shows the 3D plots of the inverse of the cost function (8) supposed that the exact CFOs ε 1 = − π/30 and ε 2 = π/20 at SNR = 20 and 30 dB, respectively. We plotted the inverse of the cost function because the plot of the cost function is a valley-like surface which is difficult to be examined.…”

Section: Performance Of the Proposed Cfo/channel Estimatementioning

confidence: 99%

“…In addition, PHN has more prominent effect on the system performance at high data rate and/or high frequencies, e.g. 5G mmWave wireless systems [8]. To deal with these problems, a number of efficient PHN estimation techniques for compensating the channels have been proposed [18][19][20].…”

Section: Introductionmentioning

confidence: 99%

CFO/Channel estimation algorithms for space‐time block coded orthogonal frequency division multiplexing wireless relay networks without using cyclic prefix of OFDM

Lin

Hwang

2019

IET signal process.

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This study presents a simple technique, which is used to estimate both channel state and carrier frequency offset (CFO) in decode-and-forward relay systems, where coded orthogonal frequency division multiplexing is employed without cyclic prefix. On the basis of the least-square criterion, we derive the estimate of CFO and channel with the aids of consecutive blocks of pilot symbols. The initially proposed estimation technique achieves a distinguished performance by using a two-dimensional complete search approach; however, the computation becomes more and more intensive when the search granularity becomes finer and finer. For this reason, we further present an iterative approach as an alternative solution, which provides a performance comparable with that of the complete search method, while greatly reducing the implementation complexity. Besides, we also derive a closed-form expression of the CFO estimate for the considered system, which allows us to avoid the exhaustive search during the estimation processing. Computer simulations have been conducted to verify the efficiency of the proposed schemes.

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“…The problem of high PAPR is even more significant in 5G systems, since 5G systems are planned to rely on utilizing mm-wave frequency ranges, to be able to satisfy the demand for large bandwidth [27]- [29]. It was shown that mm-wave power amplifiers perform poorly, and produce higher levels of distortion upon operating in the saturation region [1], [30], [31]. Therefore, PAPR minimization is highly crucial in 5G OFDM-based systems.…”

Section: Introductionmentioning

confidence: 99%

An Optimal Low Complexity PAPR Reduction Technique for Next Generation OFDM Systems

Rateb

Labana

2019

IEEE Access

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Orthogonal frequency division multiplexing (OFDM) is an efficient multi-carrier modulation technique that underlies most of the current and probably future high-speed wireless communication systems. However, the OFDM waveform is characterized by a high peak-to-average power ratio (PAPR), especially when a large number of subcarriers are used. A high PAPR is a major waveform defect since it leads to non-linear distortion when passing through the transmitter's power amplifier. Most of the PAPR reduction techniques found in the literature reduce the PAPR mainly at the cost of either excessive computational complexity or degrading the transmission bit error rate (BER). We propose a low-complexity technique for PAPR reduction based on linear scaling of a portion of signal coefficients by an optimal factor. This paper is backed up by the extensive analysis of various performance metrics, which leads to optimal choices of key parameters and hence maximum achievable gains. The analytic and simulated results show that the proposed technique is capable of reducing the PAPR effectively with negligible effect on BER in return for a slight reduction in data rate. For example, for 1024 subcarriers, the PAPR can be reduced from 13 dB to below 7.4 or 6.9 dB, in return for only 1% or 2% reduction in data rate, respectively. In addition, the achievable PAPR varies very slightly in response to increasing the number of subcarriers. This offers a highly competitive and flexible tradeoff compared with those provided by current techniques found in the literature. Therefore, this technique has a very good potential for practical application in current and future OFDM-based systems, especially those which employ a very large number of subcarriers, such as LTE, DVB-T2, and 5G systems. INDEX TERMS Orthogonal frequency division multiplexing (OFDM), peak to average power ratio (PAPR), optimization, 5G, distortionless techniques, signal distortion techniques, companding, peak clipping, DVB-T2, LTE, low-complexity.

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5G: performance and evaluation of FS‐FBMC against OFDM for high data rate applications at 60 GHz

Cited by 18 publications

References 19 publications

Low Complexity Transceiver Design for FBMC-OQAM System for Future Generation Wireless Communication

Low Complexity Transceiver Design for FBMC-OQAM System for Future Generation Wireless Communication

CFO/Channel estimation algorithms for space‐time block coded orthogonal frequency division multiplexing wireless relay networks without using cyclic prefix of OFDM

An Optimal Low Complexity PAPR Reduction Technique for Next Generation OFDM Systems

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