ICI Reduction in OFDM Systems Using a New Family of Nyquist-I Pulses

Arrano, Hernan F.; Meza, Cesar A. Azurdia

doi:10.1109/tla.2015.7387930

Cited by 9 publications

(6 citation statements)

References 12 publications

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“…We have also fixed the value of the parameter l equal to 1.6 to be consistent with related work [13,25]. As seen in Fig.…”

Section: Improved Parametric Linear Combination Pulsementioning

confidence: 59%

“…The frequency domain expression of the IPLCP was originally derived in [25], and it is given as follows…”

Section: Improved Parametric Linear Combination Pulsementioning

confidence: 99%

“…6. A pulse with a narrow central lobe and almost no sidelobes (similar to a delta Dirac function) highly reduces the ICI power, but on the other hand, increases the BER of the system because the synchronization between the oscillator of the transmitter and the receiver need to be almost perfect to recover the desired signal [22,25]. As shown in Fig.…”

Section: Improved Parametric Linear Combination Pulsementioning

confidence: 99%

“…To reduce the PAPR and ICI power of the signals to be transmitted, we should design a Nyquist pulse with a reduced tail size because the relative magnitudes of the two largest sidelobes are the ones that have the biggest effect on the PAPR and ICI [9,13,30,31]. In the case of the NW pulse, even though its frequency response decays faster, it possesses a narrow central lobe (similar to a delta Dirac function); therefore, an increase in the average BER is expected [22,25]. Regarding the time responses of the evaluated pulses, depicted in Fig.…”

Section: Improved Parametric Linear Combination Pulsementioning

confidence: 99%

“…In Arraño and Azurdia-Meza [25], a new family of Nyquist-I pulses, named improved parametric linear combination pulse (IPLCP), was proposed to reduce ICI power in OFDM-based systems. The IPLCP is characterized by having two new design parameters, giving extra degrees of freedom to reduce ICI for a certain roll-off factor.…”

Section: Introductionmentioning

confidence: 99%

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Performance Enhancement of OFDM-Based Systems Using Improved Parametric Linear Combination Pulses

Azurdia-Meza

Arrano

Estevez

et al. 2015

Wireless Pers Commun

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Artículo de publicación ISIAs the demand for better performance increases in next-generation networks, such as 5G technologies, more efficient modulation techniques are required. In this work, we evaluate the performance of the improved parametric linear combination pulses (IPLCP) in orthogonal frequency division multiplexing (OFDM) based systems. OFDMbased systems are very sensitive to frequency offset errors, and are characterized by producing high peak-to-average power ratio (PAPR) values. The IPLCP is evaluated in terms of average inter-carrier interference power, average signal to interference power, PAPR, and bit error rate. Theoretical and numerical simulations show that the IPLCP pulse performs well in OFDM-based systems in comparison to other existing pulses

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“…We have also fixed the value of the parameter l equal to 1.6 to be consistent with related work [13,25]. As seen in Fig.…”

Section: Improved Parametric Linear Combination Pulsementioning

confidence: 59%

“…The frequency domain expression of the IPLCP was originally derived in [25], and it is given as follows…”

Section: Improved Parametric Linear Combination Pulsementioning

confidence: 99%

Section: Improved Parametric Linear Combination Pulsementioning

confidence: 99%

Section: Improved Parametric Linear Combination Pulsementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Performance Enhancement of OFDM-Based Systems Using Improved Parametric Linear Combination Pulses

Azurdia-Meza

Arrano

Estevez

et al. 2015

Wireless Pers Commun

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Evaluation and Analysis of FBMC/OQAM Systems Based on Pulse Shaping Filters

2020

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Cyclic prefix orthogonal frequency division multiplexing (CP-OFDM) is the most widespread multicarrier modulation scheme. However, the use of a rectangular filter in CP-OFDM causes poor outof-band (OoB) radiation. Moreover, the CP causes spectral efficiency loss. To overcome these limitations, a filter bank multicarrier (FBMC) was proposed which uses prototype pulse shaping filters that can be adapted to fulfil the system requirements. The choice of the filter is crucial for FBMC/offset quadrature amplitude modulation (OQAM) due to its significant impact on the achieved performance. In this paper, new prototype pulse shaping filters in FBMC/OQAM systems are proposed, aiming to improve the system performance. A number of prototype pulse shaping filters, such as raised cosine pulse (RC), root raised cosine pulse (RRC), better than raised cosine pulse (BTRC), modified Bartlett-Hanning (MBH), improved sinc power pulse (ISP), phase modified sinc pulse (PMSP), parametric linear pulse (PLP), linear combination pulse (LCP), PHYDYAS and Hermite, are considered. The performance of each pulse shaping filter in FBMC/OQAM is evaluated and compared other in terms of the power spectral density (PSD), spectral efficiency, signal-to-interference ratio (SIR), time offset (TO), carrier frequency offset (CFO) and bit error rate (BER) performance over various channels. In addition, as multiple input multiple output (MIMO) is one of the main challenges associated with FBMC, we propose the new approach that use the frequency/time block spreading based on a Walsh-Hadamard (WH) code in MIMO FBMC/OQAM and investigate the combination of the our proposed prototype pulse shaping filters with MIMO systems. The proposed filters are shown to be suitable candidates for FBMC/OQAM systems.

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