AMO-FBMC for Asynchronous Heterogeneous Signal Integrated Optical Transmission

Jung, Sun-Young; Jung, Sang-Min; Han, Sang-Kook

doi:10.1109/lpt.2014.2363197

Cited by 34 publications

(9 citation statements)

References 17 publications

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“…In optical communications, a raised cosine filter or a root raised cosine filter were applied to shape the spectrum of optical signal [9], [10], but Mirabbasi-Martin filter was firstly employed in our group. Previously, we demonstrated sidelobes suppression and interference reduction when wired-/wireless signals were converged in optical downlink transmission [11], but optical uplink transmission was not verified.…”

Section: Introductionmentioning

confidence: 94%

“…Figures 7 (a) and (b) express results when signals were merged with optical power balance, while Figures (c) and (d) includepower imbalance between merged ONU signals at ODN. When signals power was equally multiplexed, channel EVM of ONUs was also balanced because the amount of interference is small compared to main lobe (subcarrier) power in both Spectrum hole of (a) OFDM and (b) FBMC[11] …”

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confidence: 99%

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Adaptation of AMO-FBMC-OQAM in optical access network for accommodating asynchronous multiple access in OFDM-based uplink transmission

Jung¹,

Jung²,

Han³

2015

SPIE Proceedings

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Exponentially expanding various applications in company with proliferation of mobile devices make mobile traffic exploded annually. For future access network, bandwidth efficient and asynchronous signals converged transmission technique is required in optical network to meet a huge bandwidth demand, while integrating various services and satisfying multiple access in perceived network resource.Orthogonal frequency division multiplexing (OFDM) is highly bandwidth efficient parallel transmission technique based on orthogonal subcarriers. OFDM has been widely studied in wired-/wireless communication and became a Long term evolution (LTE) standard. Consequently, OFDM also has been actively researched in optical network. However, OFDM is vulnerable frequency and phase offset essentially because of its sinc-shaped side lobes, therefore tight synchronism is necessary to maintain orthogonality. Moreover, redundant cyclic prefix (CP) is required in dispersive channel. Additionally, side lobes act as interference among users in multiple access. Thus, it practically hinders from supporting integration of various services and multiple access based on OFDM optical transmission In this paper, adaptively modulated optical filter bank multicarrier system with offset QAM (AMO-FBMC-OQAM) is introduced and experimentally investigated in uplink optical transmission to relax multiple access interference (MAI), while improving bandwidth efficiency. Side lobes are effectively suppressed by using FBMC, therefore the system becomes robust to path difference and imbalance among optical network units (ONUs), which increase bandwidth efficiency by reducing redundancy. In comparison with OFDM, a signal performance and an efficiency of frequency utilization are improved in the same experimental condition. It enables optical network to effectively support heterogeneous services and multiple access.

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Section: Introductionmentioning

confidence: 94%

mentioning

confidence: 99%

Adaptation of AMO-FBMC-OQAM in optical access network for accommodating asynchronous multiple access in OFDM-based uplink transmission

Jung¹,

Jung²,

Han³

2015

SPIE Proceedings

Self Cite

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“…2). The research by Jung et al [14] did consider the implementation of Mirabbasi-Martin filter. However, their experiment was in fibre-optics, and the result is not directly applicable to VLC systems using intensity modulation/direct detection (IM/DD), which requires real and positive (intensity) signals to be applied.…”

Section: Related Workmentioning

confidence: 99%

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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“…These demonstrations show that the FBMC outperforms the OFDM for equivalent design parameters. Adaptively modulated FBMC was also demonstrated in the wired-wireless converged network with the aggregated bandwidth of 1.5 GHz [10]. The future 5G RoF systems should be capable of supporting multi sub-bands and multi services in radio signals to keep the compatibility with the current legacy wireless services [11][12][13][14][15].…”

Section: Introductionmentioning

confidence: 97%

Experimental demonstration of multi-Gbps multi sub-bands FBMC transmission in mm-wave radio over a fiber system

et al. 2018

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The filter bank multicarrier (FBMC) modulation format is considered as a potential candidate for future wireless 5G due to its feature of high suppression for out-of-band emissions, which allows combining multiple sub-bands with very narrow band-gaps, and hence increases the overall wireless transmission capacity. In this paper, we experimentally demonstrate the generation of multi sub-bands FBMC signals at millimeter-wave (mm-wave) for radio-over-fiber (RoF) systems. The designed multi sub-bands FBMC system consists of 5 sub-bands of 800 MHz with inter sub-band gaps of 781.25 kHz. The composite 5 sub-bands FBMC signal is generated with no band-gap between dc to the first sub-band to preserve the bandwidth of the system. Each FBMC sub-band consists of 1024 sub-carriers and is modulated with uncorrelated data sequences. The aggregate FBMC signal is carried optically by externally modulating a free running laser and is converted to millimeter waves (mm-waves) by photomixing with another free running laser at a frequency offset of 53 GHz. At the receiver, the received electrical mm-wave signal is down-converted to an intermediate frequency (IF) and then post-processed using digital signal processing (DSP) techniques. With the use of the simple recursive least square (RLS) equalizer in the DSP receiver, the achieved aggregate data rate is 8 Gbps and 12 Gbps for 16 quadrature amplitude modulation (QAM), and 64 QAM, respectively with a total bandwidth of 4.2 GHz. The system performance is evaluated by measuring error vector magnitude (EVM) and bit error rate (BER) calculations.

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AMO-FBMC for Asynchronous Heterogeneous Signal Integrated Optical Transmission

Cited by 34 publications

References 17 publications

Adaptation of AMO-FBMC-OQAM in optical access network for accommodating asynchronous multiple access in OFDM-based uplink transmission

Adaptation of AMO-FBMC-OQAM in optical access network for accommodating asynchronous multiple access in OFDM-based uplink transmission

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

Experimental demonstration of multi-Gbps multi sub-bands FBMC transmission in mm-wave radio over a fiber system

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