Journal ArticleDOI
BER Analysis for GFDM Systems With Gabor MMSE Receiver
Zhenduo Wang,Lin Mei,Xuejun Sha +2 more
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TLDR
Considering relationships between zero forcing and minimum mean square error receivers, theoretical BER expressions of GFDM systems with an MMSE receiver are derived over AWGN and fading channels through calculating noise enhancement factor at the receiver.Abstract:
In this letter, we investigate theoretical BER performances of generalized frequency division multiplexing (GFDM) systems with receivers based on Gabor window. Considering relationships between zero forcing and minimum mean square error (MMSE) receivers, theoretical BER expressions of GFDM systems with an MMSE receiver are derived over AWGN and fading channels through calculating noise enhancement factor at the receiver. To demonstrate the generality of proposed methods, analytical BER expressions of DFT and weighted-type fractional Fourier transform precoded GFDM systems are also given and verified by simulation results.read more
Citations
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Journal ArticleDOI
Minimum BER Power Allocation for Space-Time Coded Generalized Frequency Division Multiplexing Systems
TL;DR: Simulation results show that, no matter GFDM or STC GFDM systems, the proposed PA strategy could improve BER and AR performances simultaneously.
Journal ArticleDOI
A Novel GFDM Waveform Design Based on Cascaded WHT-LWT Transform for the Beyond 5G Wireless Communications.
TL;DR: In this article, a new WHT-LWT-GFDM waveform obtained by combining Walsh-Hadamard Transform (WHT), Lifting Wavelet Transform (LWT), and Generalized Frequency Division Multiplexing (GFDM) is presented for use in next-generation wireless communication systems.
Journal ArticleDOI
A Novel Low-Complexity GFDM Relay Communication System: Relay Selection and Filter-and-Forward
TL;DR: In this article, the authors proposed three methods to design the relay nodes based on the minimization of the total power of the noise after symbol estimation at the destination node, which can be implemented with a low complexity.
Journal ArticleDOI
Performance Evaluation of Generalized Frequency Division Multiplexing Systems over Non-Linearities with Memory
Alexander Hilario-Tacuri,José Mauro P. Fortes,Raimundo Sampaio-Neto,Leonel Soncco,Diego Donaires,Juan Borja +5 more
TL;DR: The development of closed-form analytical expressions that could be used to evaluate the impact of the distortions induced by non-linearities with memory in the out-of-band emissions and the bit error rate performance of GFDM-based systems are presented.
Proceedings ArticleDOI
A Closed-Form Spectral Analysis of GFDM in Underwater Communication Systems
TL;DR: Close-form expressions that allows to evaluate the spectral efficiency (in terms of out-of-band emissions) of UWS using the Generalized Frequency Division Multiplexing (GFDM) waveform are presented.
References
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Journal ArticleDOI
Generalized Frequency Division Multiplexing for 5th Generation Cellular Networks
Nicola Michailow,Maximilian Matthe,Ivan Gaspar,Ainoa Navarro Caldevilla,Luciano Leonel Mendes,Andreas Festag,Gerhard Fettweis +6 more
TL;DR: The flexible nature of GFDM makes this waveform a suitable candidate for future 5G networks, and its main characteristics are analyzed.
Journal ArticleDOI
Generalized Frequency Division Multiplexing in a Gabor Transform Setting
TL;DR: This letter shows the equivalence of the recently proposed generalized frequency division multiplexing (GFDM) communications scheme with a finite discrete critically sampled Gabor expansion and transform with an efficient algorithm for calculation of specific GFDM receiver filters.
Journal ArticleDOI
WFRFT Precoding for Narrowband Interference Suppression in DFT-Based Block Transmission Systems
TL;DR: A new approach to narrowband interference (NBI) suppression utilizing the weighted-type fractional Fourier transform (WFRFT) as a precoding scheme in the DFT-based communications systems can outperform both SC and MC systems with regards to NBI suppression.
Journal ArticleDOI
Robust WHT-GFDM for the Next Generation of Wireless Networks
Nicola Michailow,Luciano Leonel Mendes,Maximilian Matthe,Ivan Gaspar,Andreas Festag,Gerhard Fettweis +5 more
TL;DR: The combination of generalized frequency division multiplexing (GFDM) with the Walsh-Hadamard transform (WHT) to achieve a scheme that is robust against frequency-selective channels (FSC) is presented.
Journal ArticleDOI
Matrix Characterization for GFDM: Low Complexity MMSE Receivers and Optimal Filters
TL;DR: While the out-of-band (OOB) radiation performance of systems using a unitary GFDM matrix is not optimal in general, it is shown that the OOB radiation can be satisfactorily low if parameters in the new characterization are carefully chosen.