Interference-Free Pilots Insertion for MIMO-GFDM Channel Estimation

Ehsanfar, Shahab; Maximillian, Matthe; Zhang, Dan; Fettweis, Gerhard

doi:10.1109/wcnc.2017.7925957

Cited by 30 publications

(18 citation statements)

References 12 publications

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“…A Rayleigh fading channel is adopted to evaluate the performance of generalized frequency division multiplexing. The bit error rate (BER) results of the two proposed pilot placement schemes for the channel estimation of GFDM are compared with the previous 10 1 7010 DICTAP2019 work done in [7] (Basic GFDM-LS). BER graphs are obtained through Monte Carlo simulation.…”

Section: Simulation Resultsmentioning

confidence: 99%

“…In addition, the proposed estimation is frequency domain channel estimation using least squares. Here the bit error rates (BER) for the different lengths of the pilot vector for both proposed pilot schemes are evaluated and compared with each other and with the prior works of GFDM BASIC-LS in [7] with imperfect channel knowledge. From the simulation it is observed that the pilot scheme of method 1 gives the best result if compared to the method 2 and the prior works.…”

Section: Resultsmentioning

confidence: 99%

“…A frequency block-fading channel is used in this paper with the assumption that for one data packet the random channel will remain the same and will change for the next packet of data. Rayleigh multipath channel is used in this paper and is simulated by Jake's Model as specified in [7]. The model is based on the summing of sinusoids.…”

Section: Gfdm Receivermentioning

confidence: 99%

“…This was the reason that only AWGN channels were being used for the research purposes. However now the multipath fading channels are also being considered as in [7] and [8]. Recently for GFDM, the focus is channel equalization and estimation.…”

Section: Introductionmentioning

confidence: 99%

“…7 are simulated using proposed pilot symbol placement techniques for GFDM, which are proved optimum in general in [13]. The results of this paper are compared to the prior works of GFDM BASIC-LS as in [7], the results show quiet improvement. It is observed that the results of the simulation also satisfies the works of [13], which clearly suggests that the best optimum pilot placement scheme is method 1.…”

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confidence: 99%

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Pilot Placement Schemes for Channel Estimation of Proposed 5G-GFDM System

2019

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Orthogonal Frequency Division Multiplexing (OFDM) is a highly regarded technique used in the 4G mobile communication systems to provide reliable communication and high data rates due to the orthogonality between its sub carriers. However, it cannot be used in the next generation cellular system i.e. 5G. Thus, a new technique Generalized Frequency Division Multiplexing (GFDM) has been proposed to meet the demands of the next generation systems, which are higher data rates than 4G, minimum response time, lower power consumption etc. GFDM is a non-orthogonal, multicarrier scheme, which seems to fulfil the requirements of the new wireless communication system. The aim of this paper is to use the pilot symbols and their optimum placements within the data for the channel estimation of the GFDM system. It is shown that the optimum arrangement of the pilot symbols is to place them uniformly on equal intervals within the data and to cluster them in the middle of the data.

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Section: Simulation Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Gfdm Receivermentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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confidence: 99%

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