Proceedings ArticleDOI
Low Complexity GFDM Receiver Based on Sparse Frequency Domain Processing
Ivan Gaspar,Nicola Michailow,Ainoa Navarro,Eckhard Ohlmer,Stefan Krone,Gerhard Fettweis +5 more
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TLDR
A low complexity design for demodulating GFDM signals based on a sparse representation of the pulse-shaping filter in frequency domain and the results show, that for high-order QAM signaling, the error performance can be significantly improved with interference cancellation at reasonable computational cost.Abstract:
Generalized frequency division multiplexing (GFDM) is a multi-carrier modulation scheme. In contrast to the traditional orthogonal frequency division multiplexing (OFDM), it can benefit from transmitting multiple symbols per sub-carrier. GFDM targets block based transmission which is enabled by circular pulse shaping of the individual sub- carriers. In this paper we propose a low complexity design for demodulating GFDM signals based on a sparse representation of the pulse-shaping filter in frequency domain. The proposed scheme is compared to receiver concepts from previous work and the performance is assessed in terms of bit error rates for AWGN and Rayleigh multipath fading channels. The results show, that for high-order QAM signaling, the error performance can be significantly improved with interference cancellation at reasonable computational cost.read more
Citations
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Journal ArticleDOI
5GNOW: non-orthogonal, asynchronous waveforms for future mobile applications
Gerhard Wunder,Peter Jung,Martin Kasparick,Thorsten Wild,Frank Schaich,Yejian Chen,Stephan ten Brink,Ivan Gaspar,Nicola Michailow,Andreas Festag,Luciano Leonel Mendes,Nicolas Cassiau,Dimitri Ktenas,Marcin Dryjanski,Slawomir Pietrzyk,Bertalan Eged,Peter Vago,Frank Wiedmann +17 more
TL;DR: New key PHY layer technology components such as a unified frame structure, multicarrier waveform design including a filtering functionality, sparse signal processing mechanisms, a robustness framework, and transmissions with very short latency enable indeed an efficient and scalable air interface supporting the highly varying set of requirements originating from the 5G drivers.
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
OFDM Inspired Waveforms for 5G
TL;DR: A common framework is built based on the said OFDM principle that facilitates straightforward understanding of channel equalization and the application of these new waveforms to multiple-input multiple-output channels and facilitates derivation of new structures for more efficient synthesis/analysis of these waveforms.
Journal ArticleDOI
OFDM With Interleaved Subcarrier-Index Modulation
TL;DR: Both theoretical analysis and simulation results are presented to show that the proposed OFDM with interleaved sucarrier-index modulation (OFDM-ISIM) can achieve better system performance than conventional OFDM-IM and OfDM with low-order modulation schemes such as binary phase shift keying, quadrature phase shiftkeying and 16 quadratures amplitude modulation.
Journal ArticleDOI
The 5G candidate waveform race: a comparison of complexity and performance
Robin Gerzaguet,Nikolaos Bartzoudis,Leonardo Gomes Baltar,Vincent Berg,Jean-Baptiste Dore,Dimitri Ktenas,Oriol Font-Bach,Xavier Mestre,Miquel Payaro,Michael Färber,Kilian Roth +10 more
TL;DR: This work proposes a comparison of several 5G waveform candidates (OFDM, UFMC, FBMC and GFDM) under a common framework, and assess spectral efficiency, power spectral density, peak-to-average power ratio and robustness to asynchronous multi-user uplink transmission.
References
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Journal ArticleDOI
Synthesis of band-limited orthogonal signals for multichannel data transmission
TL;DR: A principle of orthogonal multiplexing for transmitting a number of data messages simultaneously through a linear band-limited transmission medium at a maximum data rate without interchannel and intersymbol interferences is presented.
Journal ArticleDOI
OFDM Versus Filter Bank Multicarrier
TL;DR: It is shown that filter bank multicarrier (FBMC) could be a more effective solution to the shortcomings of orthogonal frequency division multiplexing in certain applications and in other applications.
Journal ArticleDOI
Performance of an Efficient Parallel Data Transmission System
TL;DR: A parallel quadrature AM data transmission system with a number of overlapping channels, each carrying a signaling rateb, spacedb/2apart in frequency appears to be a promising technique for achieving good performance at high information rates over bandlimited dispersive transmission media.
Proceedings ArticleDOI
GFDM - Generalized Frequency Division Multiplexing
TL;DR: GFDM enables frequency and time domain multi-user scheduling comparable to OFDM and provides an efficient alternative for white space aggregation even in heavily fragmented spectrum regions.
Proceedings ArticleDOI
Generalized frequency division multiplexing: Analysis of an alternative multi-carrier technique for next generation cellular systems
TL;DR: This paper shows that based on the FFT/IFFT algorithm, the GFDM scheme can be implemented with reasonable computational effort and presents the benefits of the pulse shaped carriers in GFDM.