Generalized Frequency Division Multiplexing for 5th Generation Cellular Networks

Michailow, Nicola; Matthé, Maximilian; Gaspar, Ivan; Caldevilla, Ainoa Navarro; Mendes, Luciano Leonel; Festag, Andreas; Fettweis, Gerhard

doi:10.1109/tcomm.2014.2345566

Cited by 789 publications

(718 citation statements)

References 39 publications

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“…FBMC (Filter Bank Multicarrier) [1], UFMC (Universal Filtered Multicarrier) [2], GFDM (Generalized Frequency Multicarrier Multiplexing) [3,4] and so on are examples of these so called "New Waveforms". Since these schemes have less OOB (out-of-band) emissions in general, more efficient spectrum usage is expected.…”

Section: Introductionmentioning

confidence: 99%

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Analysis of the interference from GFDM to OFDM signals in same band

2017

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This paper focuses the interference from GFDM signal to already-existing OFDM signal when both signals coexist in same band, considering some migration scenario from 4G to 5G mobile system. After defining system model, the mathematical expression is derived theoretically and numerically verified by computer simulation. This mathematical expression indicates that the time difference does not affect the cross-correlation between GFDM and OFDM symbols, and that the interference decreases approximately by square of subcarrier interval between those symbols. Derived formula can be used not only for the interference evaluation in various configurations, but also for designing the waveform filter of GFDM.

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Section: Introductionmentioning

confidence: 99%

“…Note that, some references, e.g. [3], in the definitions use opposite sign for the exponent in Eq. (3), i.e.…”

Section: Introductionmentioning

confidence: 99%

Analysis of the interference from GFDM to OFDM signals in same band

2017

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“…As a result, in the 5G context new waveforms are foreseen in order to cope with these problems: in particular Generalized Frequency Division Multiplexing (GFDM) [6] [7] and Filter Bank Multicarrier (FBMC) modulations [8] [9] are two of the main candidates techniques for the upcoming 5G standard.…”

Section: Introductionmentioning

confidence: 99%

“…SYSTEM MODEL Considering multicarrier systems such as OFDM, GFDM and FBMC [6], [8], [14], the following general form can be used in order to describe the transmitted signal…”

Section: Introductionmentioning

confidence: 99%

“…On the other hand, with respect to both the OFDM and the FBMC where only K symbols are processed, in GFDM technique the data source provides a binary data vector block of KM symbols that are processed simultaneously. Thus, in this case a k,m is the symbol associated to the k-th subcarrier at the m-th timeslot [6] [7]. Moreover, in the GFDM each a k,m is transmitted with the corresponding non-rectangular shaping filter as in the following [6] …”

Section: Introductionmentioning

confidence: 99%

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Frame design for 5G multicarrier modulations

Morosi

Biagini

Argenti

et al. 2015

2015 International Wireless Communications and Mobile Computing Conference (IWCMC)

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Abstract-Orthogonal Frequency Division Multiplexing (OFDM) transmission technique has been considered for the 4G LTE-Advanced system because of its high performance and low complexity. In the new 5G scenario this type of modulation is not properly suited because of the additional requirements for very high spectral efficiency, low latency and low out-of-band (OOB) emissions. Thus, new waveforms have been chosen to replace it and effectively deal with these problems. Particularly, recently proposed multicarrier techniques as the Generalized Frequency Division Multiplexing (GFDM) and the Filter Bank Multicarrier (FBMC) modulations are two of the main candidates techniques for the new 5G standard. As for classical OFDM technique, the channel estimation is a crucial functionality for the all multicarrier approaches. In this paper we generalize a recently proposed method for the computation of the MSE on the time-frequency domain for pilot based channel estimation techniques in multicarrier system. This method permits to determine the most suitable channel estimation algorithm for a given wireless channel as well as to define the suitable pilot density in order to afford a target MSE value for a given SNR level. Hence, in this paper a general design tool for multicarrier systems is proposed.

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