Performance Improvement of Multicarrier Systems Using Wavelet Filter Banks

Chunkath, Job; Arjun, S.S.; Sheeba, V. S.; Raj, S. Anso

doi:10.1016/j.protcy.2016.05.087

Cited by 3 publications

(2 citation statements)

References 19 publications

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“…Wavelet implication improves PA efficiency, thereby restricting energy expenditure at mobile equipment (batteries that last longer) and at the base stations (energy savings) [11]. Many researchers have demonstrated the BER analysis for WOFDM [12,13] and standard OFDM systems to highlight the benefits of different types of wavelets in an OFDM system, i.e., db2, db4, db6, db10, db8, db32, haar, symlet, biorthogonal, reverse biorthogonal [14][15][16][17] under AWGN, and Rayleigh fading channel over a wide SNR range.…”

Section: Introductionmentioning

confidence: 99%

Analysis of WOFDM over LTE 1.25 MHz Band

Sarowa¹,

Kumar

Singh

2020

Wireless Communications and Mobile Computing

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Orthogonal Frequency Division Multiplexing (OFDM) is the one of the most preferred multiplexing technique for realizing high-speed wireless communication, like Long Term Evolution (LTE) and LTE-Adv. In the era of digital wireless communication, applications of wavelet theory have been favorably applied in many areas of signal processing. Orthogonality, flexible time-frequency analysis, and the ability to characterize signals accurately have attracted the attention of the telecommunication community to use wavelet as a basis function for OFDM. In this paper, discrete wavelet transform (DWT) has been proposed as an alternative signal analysis with multiple merits such as support high-speed applications, immune to distortion, wavelet diversity, better error performance, and efficient bandwidth utilization. A simulative analysis of various wavelets, at different modulation techniques, over OFDM has been presented to demonstrate the improvement in BER performance. Further, in accordance with the LTE parameterization over 1.25 MHz band, the performance of wavelet-based OFDM (WOFDM) is found significantly higher in terms of maximum achievable data rate and system spectral efficiency.

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Section: Introductionmentioning

confidence: 99%

Analysis of WOFDM over LTE 1.25 MHz Band

Sarowa¹,

Kumar

Singh

2020

Wireless Communications and Mobile Computing

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“…In a multipath environment, the orthogonality of WOFDM signal is lost so that Intersymbol Interference (ISI) and Intercarrier Interference (ICI) occur [9,10]. The performance of SP-WOFDM can be destroyed by ICI and ISI.…”

Section: Introductionmentioning

confidence: 99%

The Parallel Algorithm Based on Genetic Algorithm for Improving the Performance of Cognitive Radio

Liu

Sun

Zhang

2018

Wireless Communications and Mobile Computing

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The intercarrier interference (ICI) problem of cognitive radio (CR) is severe. In this paper, the machine learning algorithm is used to obtain the optimal interference subcarriers of an unlicensed user (un-LU). Masking the optimal interference subcarriers can suppress the ICI of CR. Moreover, the parallel ICI suppression algorithm is designed to improve the calculation speed and meet the practical requirement of CR. Simulation results show that the data transmission rate threshold of un-LU can be set, the data transmission quality of un-LU can be ensured, the ICI of a licensed user (LU) is suppressed, and the bit error rate (BER) performance of LU is improved by implementing the parallel suppression algorithm. The ICI problem of CR is solved well by the new machine learning algorithm. The computing performance of the algorithm is improved by designing a new parallel structure and the communication performance of CR is enhanced.

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A-STBC incorporated power-efficient Radio over Fibre system

Kaur

Sharma²

2019

Optics Communications

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Performance Improvement of Multicarrier Systems Using Wavelet Filter Banks

Cited by 3 publications

References 19 publications

Analysis of WOFDM over LTE 1.25 MHz Band

Analysis of WOFDM over LTE 1.25 MHz Band

The Parallel Algorithm Based on Genetic Algorithm for Improving the Performance of Cognitive Radio

A-STBC incorporated power-efficient Radio over Fibre system

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