On Performance of MIMO-OFDM/TDM Using MMSE-FDE with Nonlinear HPA in a Multipath Fading Channel

Ligata, Amir; Gacanin, Haris; Javornik, Tomaž

doi:10.1587/transcom.e97.b.1947

Cited by 2 publications

(2 citation statements)

References 25 publications

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“…We note that, except for the SEL HPA model, the investigation presented in [34] gives only semi-analytical results which could not be easily extended to real HPA with measured characteristics, which is the case of one of the HPA models (HPA1) considered in this paper. Other contributions [35], [36] used the results presented in [34] to study the effect of HPA on Multiple-Input Multiple-Output (MIMO) transmit diversity systems. Bouhadda et al [13] proposed a theoretical characterization of the NLD parameters for any measured or modeled HPA.…”

Section: Theoretical Analysis Of Ser Performance a Non Linear Dmentioning

confidence: 99%

Analytical Analysis of SER for Beyond 5G Post-OFDM Waveforms in Presence of High Power Amplifiers

et al. 2019

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This paper studies the performance of enhanced multicarrier waveforms in the presence of a nonlinear memoryless high power amplifier (HPA). In particular, we focus on the in-band non-linear distortions (NLD) and their effects on symbol-error-rate. First, we introduce a theoretical characterization of NLD caused by HPAs. Two HPA models are considered in this paper: 1) a 4-GHz realistic HPA, modeled using a polynomial model, and this model exhibits both amplitude-to-amplitude (AM/AM) and amplitude-tophase distortions and 2) a Rapp model, which exhibits only the AM/AM distortion. Second, we present further discussions and comparisons on the different waveforms: the cyclically prefixed orthogonal frequency division multiplexing (OFDM), the weighted overlap and add OFDM, the universal filtered multicarrier, the filtered OFDM, and the filter bank multicarrier based on offset-QAM. Then, we provide insights into the impact of in-band non-linear distortions caused by HPAs. The simulation and theoretical results are shown to be in agreement for different waveforms and various input back-off values.

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Section: Theoretical Analysis Of Ser Performance a Non Linear Dmentioning

confidence: 99%

Analytical Analysis of SER for Beyond 5G Post-OFDM Waveforms in Presence of High Power Amplifiers

et al. 2019

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“…To improve the capacity and system performance of cellular networks, beamforming for downlink multicell MIMO systems has been proposed as one of the most promising techniques to solve the interference problem [6][7][8][9]. Linear transmission techniques because of their simplicity in comparison with nonlinear ones have attracted the most interest from researchers [10][11][12][13].…”

Section: Introductionmentioning

confidence: 99%

On the Effect of Different Grips of Handsets on Data Rate in the Measured Channels

Rahimi

Foroozanfard

2015

International Journal of Antennas and Propagation

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The investigation on the achieved data rate of the cellular system considering different grips of handsets at different frequencies using measurement results of the measurement campaign—which was carried out in the city of Aalborg—is presented in this paper. The achieved data rate of the multiple-input single-output (MISO) interference channel is investigated. A typical propagation environment using two BSs and four handsets, like smart phones, held by four to eight different users was designed and multiple-input multiple-output (MIMO) channels in different scenarios were measured. In this paper, two BSs and two handsets at each measurement time are considered. The impact of the different parameters like correlation, different grips of handsets, and different long term evolution (LTE) frequency bands on the achieved data rate is investigated for different measurements. It could be concluded that the variations in the values of data rate are weakly associated with the different grips of handsets but more correlated with different frequencies.

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On Performance of MIMO-OFDM/TDM Using MMSE-FDE with Nonlinear HPA in a Multipath Fading Channel

Cited by 2 publications

References 25 publications

Analytical Analysis of SER for Beyond 5G Post-OFDM Waveforms in Presence of High Power Amplifiers

Analytical Analysis of SER for Beyond 5G Post-OFDM Waveforms in Presence of High Power Amplifiers

On the Effect of Different Grips of Handsets on Data Rate in the Measured Channels

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