Wireless Vehicular Multiband Measurements in Centimeterwave and Millimeterwave Bands

Hofer, Markus; Löschenbrand, David; Blumenstein, Jiří; Groll, Herbert; Zelenbaba, Stefan; Rainer, Benjamin; Bernadó, Laura; Vychodil, Josef; Mikulasek, Tomas; Zöchmann, Erich; Sangodoyin, Seun; Hammoud, Hussein; Schrenk, Bernhard; Langwieser, Robert; Pratschner, Stefan; Prokeš, Aleš; Molisch, Andreas F.; Mecklenbräuker, Christoph F.; Zemen, Thomas

doi:10.1109/pimrc50174.2021.9569547

Cited by 13 publications

(10 citation statements)

References 12 publications

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“…A sparse approximation in delay-Doppler domain was shown with the c-LASSO in [44]. Vehicular wireless channels feature more discrete MPCs in the Doppler domain for communication at mm-Wave bands compared to the sub-6 GHz bands [13]. Since the support set of the LSF is only approximately sparse, the question arises how well (9) approximates the observed data for various choices of S. How well this works with a sparse representation is answered in Section II-E.…”

Section: Joint Delay-doppler Sparsitymentioning

confidence: 99%

“…where the error term z ′ [k, l] includes noise, and selfinterference. For channel sounding, a calibration procedure allows to compensate for the transfer functions of Tx and Rx analog frontends [13]. The symbol duration T limits the maximum unambiguous propagation delay, i.e.…”

Section: B Channel Soundingmentioning

confidence: 99%

“…The dual of the atomic norm involves finding the maximum absolute value of a bounded complex trigonometric polynomial defined with respect to A, for which there is an approximate semi-definite program (SDP) optimization solution for two-dimensions [15], [39]. The atomic norm in (13) is approximated by solving a SDP [39]…”

Section: Atomic Normmentioning

confidence: 99%

“…In this work, 155 MHz bandwidth at 62. 35 GHz are used from the vehicular multiband measurement campaign in [13].…”

Section: Measurement Campaignmentioning

confidence: 99%

“…Given sufficiently high bandwidth for resolving components in the delay domain, the significant MPCs may exhibit a sparse structure in delay. Conversely, given sufficiently large channel snapshot period for resolving components in the Doppler domain, the significant MPCs exhibit a sparse structure in Doppler [13].…”

Section: Introductionmentioning

confidence: 99%

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Scatterer Identification by Atomic Norm Minimization in Vehicular mm-Wave Propagation Channels

et al. 2022

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Sparse scatterer identification with atomic norm minimization (ANM) techniques in the delay-Doppler domain is investigated for a vehicle-to-infrastructure millimeter wave propagation channel. First, a two-dimensional ANM is formulated for jointly estimating the time-delays and Doppler frequencies associated with individual multipath components (MPCs) from short-time Fourier transformed measurements. The two-dimensional ANM is formulated as a semi-definite program and promotes sparsity in the delay-Doppler domain. The numerical complexity of the two-dimensional ANM limits the problem size which results in processing limitations on the time-frequency sample matrix size. Subsequently, a decoupled form of ANM is used together with a matrix pencil, allowing a larger sample matrix size. Simulations show that spatial clusters of a point-scatterers with small cluster spread are suitable to model specular reflection which result in significant MPCs and the successful extraction of their delay-Doppler parameters. The decoupled ANM is applied to vehicle-to-infrastructure channel sounder measurements in a sub-urban street in Vienna at 62 GHz. The obtained results show that the decoupled ANM successfully extracts the delay-Doppler parameters in high resolution for the channel's significant MPCs.INDEX TERMS Beyond 5G mobile communication, millimeter wave propagation, multipath channels, time-varying channels, vehicle-to-infrastructure connectivity

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Section: Joint Delay-doppler Sparsitymentioning

confidence: 99%

Section: B Channel Soundingmentioning

confidence: 99%

Section: Atomic Normmentioning

confidence: 99%

“…In this work, 155 MHz bandwidth at 62. 35 GHz are used from the vehicular multiband measurement campaign in [13].…”

Section: Measurement Campaignmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Scatterer Identification by Atomic Norm Minimization in Vehicular mm-Wave Propagation Channels

et al. 2022

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LS-based multipath channel measurement method using software defined radio platform

Lu,

Zhang,

Mao

2024

Measurement

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A Novel Constellation Modification Method for Harmonic Modulated MPSK Data Transmission in Millimeter Wave Communication

Ersoy¹,

Karakoc²,

Sahin³

2023

IEEE Access

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The size of the data transmitted in communication systems is constantly increasing and leads to the need for high bandwidth. Therefore, using the millimeter wave (mmWave) band is one of the best solutions in data transmission. Frequency multiplication via nonlinear components is used for signal generation at higher frequencies in the millimeter to submillimeter bands and it is of great importance in generating signals up to 2.2 THz. Although communication systems with the highest carrier frequency using these components are available at the 300 GHz-340 GHz, standard communication models do not comply with data transmission at this band, bringing problems caused by nonlinearity throughout data recovery. We solve these problems with the proposed constellation modification method, which has not been studied before. In this study, it is aimed to provide data transmission in the mmWave band with an experimental communication system that is compatible with the frequency multiplication and has high spectral efficiency. For the first time to our knowledge, a novel constellation modification method that can be modified according to the frequency multiplication on the standard M-ary phase shift keying (MPSK) data is proposed. In this method, the existing receiver structure is preserved and MPSK with harmonic modulation is carried. In the experimental demonstration part, harmonic binary shift keying (BPSK) data transmission via frequency multiplied 30 GHz transmitter was achieved with a power penalty of 2.3 dB, and this shows that MPSK data transmission over harmonic mmWave or submillimeter band sources is now possible.

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Wireless Vehicular Multiband Measurements in Centimeterwave and Millimeterwave Bands

Cited by 13 publications

References 12 publications

Scatterer Identification by Atomic Norm Minimization in Vehicular mm-Wave Propagation Channels

Scatterer Identification by Atomic Norm Minimization in Vehicular mm-Wave Propagation Channels

LS-based multipath channel measurement method using software defined radio platform

A Novel Constellation Modification Method for Harmonic Modulated MPSK Data Transmission in Millimeter Wave Communication

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