Performance Evaluation of Wavelet-Coded OFDM on a 4.9 Gb/s W-Band Radio-Over-Fiber Link

Cavalcante, Lucas Costa Pereira; Rommel, Simon; Dinis, Rui; Silveira, L.G.Q.; Silveira, Luiz F. Q.; Monroy, Idelfonso Tafur

doi:10.1109/jlt.2017.2701358

Cited by 14 publications

(7 citation statements)

References 24 publications

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“…From each of the 14 symbols, the CP is discarded and the FFT is performed. The received pilot tones, P Rx , are compared to the transmitted ones, P Tx , giving the channel response H Ch = P Rx /P Tx which is used to reverse the impact of the channel [10]. The received symbols are demodulated for BER evaluation.…”

Section: Arof Ka-band Transmission Setupmentioning

confidence: 99%

Analog Radio Over Fiber Fronthaul for High Bandwidth 5G Millimeter-Wave Carrier Aggregated OFDM

Konstantinou

Morales

Rommel

et al. 2019

2019 21st International Conference on Transparent Optical Networks (ICTON)

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Section: Arof Ka-band Transmission Setupmentioning

confidence: 99%

Analog Radio Over Fiber Fronthaul for High Bandwidth 5G Millimeter-Wave Carrier Aggregated OFDM

Konstantinou

Morales

Rommel

et al. 2019

2019 21st International Conference on Transparent Optical Networks (ICTON)

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“…The associate editor coordinating the review of this manuscript and approving it for publication was Ayaz Ahmad . by inducing inter-symbol interference (ISI) [4]- [6]. Most explored and leading multi-carrier technique, which is deployed to alleviate the effect of frequency-selective fading in broadband wireless technology, is orthogonal frequency division multiplexing (OFDM).…”

Section: Introductionmentioning

confidence: 99%

Adaptive $2\times2$ MIMO Employed Wavelet-OFDM-Radio Over Fibre Transmission

Sharma¹,

Sergeyev²,

Kaur³

2020

IEEE Access

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Due to high peak-to-average-power ratio (PAPR) and low spectral-efficiency, the conventional Fast Fourier Transform based orthogonal frequency division multiplexing (OFDM) is losing its place to the other multicarrier modulation schemes. Alternatively, the wavelet treated multiple-input multiple-output (MIMO)-OFDM is gaining its popularity in realization of futuristic 5G networks due to proffering high spectral-efficiency, low-cost and low phase-noise. Subsequently, this work demonstrates a RF transmission system in S-band employing 2 × 2 MIMO-OFDM using orthogonal-and biorthogonal-wavelets with diverse phase shift keying modulation (PSK) schemes. Among the available MIMO configurations, the authors implement spatial diversity as it promises good reliability in noisy links [11]. However, the distribution of Wavelet-OFDM (W-OFDM) signals over a radio over fibre (RoF) link is critically affected by the optical subsystem non-linearity. So, the simplest 2×2 Alamouti's space-time block code (STBC) is implemented in this work to overcome this non-linearity and to realize a less-complex detection. The work is further extended to realize an adaptive MIMO-RoF system employing W-OFDM scheme to adjust itself to a suitable available phase shift keying strategy as per the link-situation to retain an optimal balance of link-quality and spectralefficiency.

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“…Simplicity regarding the wavelet coding process led to the investigation of this transmission technique applied to di erent communication scenarios, such as at fading channels [6], frequency selective channels [4], analysis of channel estimation errors [7,8], and identi cation of modulation schemes designed by genetic algorithms [9], in OFDM systems on a 4.9 Gbps W-Band Radio-over-Fiber Link [10] and in wireless adaptive control systems [11].…”

Section: Introductionmentioning

confidence: 99%

“…On the other hand, wavelet coding has already been successfully used in real systems with small and medium size matrices. In [10], a 2 × 128-size matrix was used to enable communications on an 80 GHz carrier frequency real fiber radio system. In [11], a small (2 × 8) matrix was used to enable a microcontrolled wireless loop control system.…”

Section: Introductionmentioning

confidence: 99%

Design of Wavelet-Encoded Symbol Constellations for Cyclostationary Spectrum Sensing

Souza

Silveira

2020

Wireless Communications and Mobile Computing

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In mobile communication systems, the signals propagate through multipath over time-varying channels, which are subject to distortion caused by fading and Doppler shifts. In order to minimize such distortions, coding techniques and transmission diversity can be employed, e.g., wavelet coding. In this work, the wavelet coding is investigated in scenarios of cognitive radio systems with dynamic spectrum access. Cognitive radio systems with dynamic spectrum access should be able to sense unoccupied frequency bands for opportunistic transmissions, as well as detect the presence of primary users when they occupy their licensed spectrum. Therefore, an essential element for the accurate operation of cognitive radio systems encoded by wavelet coding is the ability to sense the signals encoded by this technique. It is effectively demonstrated that the possibility of sensing such signals is associated with a suitable design of the signal constellation used in the modulation of the coded symbols. The constellation design of these is performed via genetic algorithms using a multiobjective optimization approach. The developed system is evaluated according to the robustness to time-varying flat fading through a bit error probability (BER) versus Eb/N0 analysis. The spectral sensing ability is also addressed employing the cyclostationary analysis. The results denote the feasibility of using wavelet coding in radio scenarios with dynamic spectrum access, with good performance in terms of BER and signal detection rates.

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Performance Evaluation of Wavelet-Coded OFDM on a 4.9 Gb/s W-Band Radio-Over-Fiber Link

Cited by 14 publications

References 24 publications

Analog Radio Over Fiber Fronthaul for High Bandwidth 5G Millimeter-Wave Carrier Aggregated OFDM

Analog Radio Over Fiber Fronthaul for High Bandwidth 5G Millimeter-Wave Carrier Aggregated OFDM

Adaptive $2\times2$ MIMO Employed Wavelet-OFDM-Radio Over Fibre Transmission

Design of Wavelet-Encoded Symbol Constellations for Cyclostationary Spectrum Sensing

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