Sensitivity analysis of offset QAM multicarrier systems to residual carrier frequency and timing offsets

Saeedi-Sourck, Hamid; Wu, Yan; Bergmans, J.W.M.; Sadri, Saeed; Farhang‐Boroujeny, Behrouz

doi:10.1016/j.sigpro.2010.12.019

Cited by 46 publications

(37 citation statements)

References 28 publications

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“…Moreover, the poor spectral confinement performance of the rectangular window makes OFDM highly sensitive to synchronization errors, either in time domain or in frequency domain [5].…”

Section: Fig 1 Spectrum Of Ofdm (Left) and Fbmc (Right) Subchannelsmentioning

confidence: 99%

“…This scheme has attracted a lot of attentions in RF wireless communication due to its superior spectral confinement performance and high resilience against synchronization errors when compared with the conventional OFDM scheme [5], [11]- [13]. However, to the best of our knowledge, its superiority compared with conventional DCO-OFDM in VLC channels has not been verified.…”

Section: Related Workmentioning

confidence: 99%

“…Moreover, the pulse-shaping filter implemented in FBMC is much better localized, both in time and in frequency domain as in Fig. 1, making the FBMC system more robust against possible synchronization errors, such as carrier frequency offset (CFO) and sampling frequency offset (SFO) which widely exist in OFDM systems [5], [13]. All of those factors contribute to the improved BER performance observed.…”

Section: B Receiver Designmentioning

confidence: 99%

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Visible light communication using DC-biased optical filter bank multi-carrier modulation

Chen

Park

Shen

et al. 2018

2018 Global LIFI Congress (GLC)

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Abstract-Filter bank multicarrier (FBMC) has become a promising candidate to replace conventional orthogonal frequency-division multiplexing (OFDM) scheme in 5G technology due to its better spectral confinement which results in a reduced inter-channel interference (ICI). However, the viability of using FBMC in visible light communication has not been verified. In this work we present the first experimental validation of the DC-biased optical filter bank multicarrier (DCO-FBMC) modulation scheme over a free-space optical channel. Under different receiving powers, up to three times bit error rate performance improvement has been achieved using DCO-FBMC with different overlapping factors compared to that of conventional DCO-OFDM.

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“…Moreover, the poor spectral confinement performance of the rectangular window makes OFDM highly sensitive to synchronization errors, either in time domain or in frequency domain [5].…”

Section: Fig 1 Spectrum Of Ofdm (Left) and Fbmc (Right) Subchannelsmentioning

confidence: 99%

Section: Related Workmentioning

confidence: 99%

Section: B Receiver Designmentioning

confidence: 99%

See 1 more Smart Citation

Visible light communication using DC-biased optical filter bank multi-carrier modulation

Chen

Park

Shen

et al. 2018

2018 Global LIFI Congress (GLC)

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“…Because of the aforementioned weaknesses, researchers are more and more interested by FBMC modulations which employ a frequency well-localized FIR filter with small side lobes instead of the rectangular pulse shape used in OFDM. This makes FBMC systems more spectral efficient and less sensitive to frequency errors compared to OFDM [1].…”

Section: Introductionmentioning

confidence: 99%

“…*Correspondence: b.elmaroud@gmail.com 1 LRIT, Associated Unit to CNRST (URAC 29), Mohammed V University, Rabat, Morocco Full list of author information is available at the end of the article When a multicarrier modulation (OFDM or FBMC) is employed, the performance of multi-cellular networks depends extensively on how well the orthogonality among subcarriers is maintained at the receiver. In an asynchronous system, this orthogonality is destroyed due to synchronization errors which include timing offsets and carrier frequency/phase offsets.…”

Section: Introductionmentioning

confidence: 99%

Sensitivity analysis of FBMC-based multi-cellular networks to synchronization errors and HPA nonlinearities

Elmaroud

Faqihi

Aboutajdine

2017

EURASIP J. Adv. Signal Process.

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In this paper, we study the performance of asynchronous and nonlinear FBMC-based multi-cellular networks. The considered system includes a reference mobile perfectly synchronized with its reference base station (BS) and K interfering BSs. Both synchronization errors and high-power amplifier (HPA) distortions will be considered and a theoretical analysis of the interference signal will be conducted. On the basis of this analysis, we will derive an accurate expression of signal-to-noise-plus-interference ratio (SINR) and bit error rate (BER) in the presence of a frequency-selective channel. In order to reduce the computational complexity of the BER expression, we applied an interesting lemma based on the moment generating function of the interference power. Finally, the proposed model is evaluated through computer simulations which show a high sensitivity of the asynchronous FBMC-based multi-cellular network to HPA nonlinear distortions.

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Sensitivity of filter bank SCFDMA to carrier frequency offset and its compensation using firefly algorithm

Ali

2018

Int J Communication

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This paper proposes an efficient wireless uplink strategy named filter bank single carrier frequency division multiple access. The proposed system combines the low peak-to-average power ratio of precoded orthogonal frequency division multiple access with the reduced out-of-band emission of filter bank multicarrier scheme. We present a complete mathematical analysis of the proposed model and derive the conditions to be fulfilled by the transmit filter for perfect data recovery. We further introduce a transmit filter design to enhance the peak-to-average power ratio and out-of-band emission characteristics of the proposed system. This paper also analyzes the sensitivity of the filter bank single carrier frequency division multiple access system to carrier frequency offset (CFO) and suggests a low complexity interference compensation scheme, under the assumption of perfect knowledge of CFO at the receiver. Later on, the assumption on CFO parameter is removed, and a blind interference compensation technique based on firefly algorithm is developed. Finally, a detailed simulation study is performed to substantiate the effectiveness of the proposed methods.KEYWORDS carrier frequency offset, filter bank multicarrier, firefly algorithm, out-of-band emission, peak-toaverage power ratio, precoded OFDMA

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Sensitivity analysis of offset QAM multicarrier systems to residual carrier frequency and timing offsets

Cited by 46 publications

References 28 publications

Visible light communication using DC-biased optical filter bank multi-carrier modulation

Visible light communication using DC-biased optical filter bank multi-carrier modulation

Sensitivity analysis of FBMC-based multi-cellular networks to synchronization errors and HPA nonlinearities

Sensitivity of filter bank SCFDMA to carrier frequency offset and its compensation using firefly algorithm

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