Experiment on Over-100-Gbps Wireless Transmission with OAM-MIMO Multiplexing System in 28-GHz Band

Sasaki, Hirofumi; Lee, Doohwan; Fukumoto, Hisao; Yagi, Yasunori; Takano, Kunihiko; Shibata, Hiroyuki; Shimizu, Takashi

doi:10.1109/glocom.2018.8647361

Cited by 34 publications

(21 citation statements)

References 21 publications

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“…The results indicated a new milestone was reached in terms of point-to-point wireless transmission. In addition, we recently extended our work by extending the baseband signal processing to successfully achieve 120 Gbit/s using a total of 11 OAM modes [19]. This is the state-of-the-art results that have been published in the literature.…”

Section: Experimental Oam-mimo Multiplexing Results Using Multiple Ucasmentioning

confidence: 72%

An Evaluation of Orbital Angular Momentum Multiplexing Technology

et al. 2019

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This paper reports our investigation of wireless communication performance obtained using orbital angular momentum (OAM) multiplexing, from theoretical evaluation to experimental study. First, we show how we performed a basic theoretical study on wireless OAM multiplexing performance regarding modulation, demodulation, multiplexing, and demultiplexing. This provided a clear picture of the effects of mode attenuation and gave us insight into the potential and limitations of OAM wireless communications. Then, we expanded our study to experimental evaluation of a dielectric lens and end-to-end wireless transmission on 28 gigahertz frequency bands. To overcome the beam divergence of OAM multiplexing, we propose a combination of multi-input multi-output (MIMO) and OAM technology, named OAM-MIMO multiplexing. We achieved 45 Gbps (gigabits per second) throughput using OAM multiplexing with five OAM modes. We also experimentally demonstrated the effectiveness of the proposed OAM-MIMO multiplexing using a total of 11 OAM modes. Experimental OAM-MIMO multiplexing results reached a new milestone for point-to-point transmission rates when 100 Gbps was achieved at a 10-m transmission distance.

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Section: Experimental Oam-mimo Multiplexing Results Using Multiple Ucasmentioning

confidence: 72%

An Evaluation of Orbital Angular Momentum Multiplexing Technology

et al. 2019

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“…Separate from using optical beams, free-space communication links can take advantage of mode multiplexing in many other carrier-wave-frequency ranges to increase system capacity. For example, OAM can be manifest in many types of electromagnetic and mechanical waves (see Figure 8), and interesting reports have explored the use of OAM in millimeter, acoustic, and THz waves [47][48][49][50][51][52][53][54][55].…”

Section: Different Frequency Rangesmentioning

confidence: 99%

“…There are exciting developments in the millimeter-wave application space, for which industrial labs are increasingly engaging in R&D in order to significantly increase the potential capacity of fronthaul and backhaul links [47,[52][53][54][55]. Advances in this area include the use of RF antenna arrays that are fabricated on printed-circuit boards [54].…”

Section: Different Frequency Rangesmentioning

confidence: 99%

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Perspective on using multiple orbital-angular-momentum beams for enhanced capacity in free-space optical communication links

Willner

2020

Nanophotonics

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“…Significantly, in 2018, a 1 Tb s −1 data rate wireless link was demonstrated wirelessly at 26 GHz by using OAM modes to multiplex 10 channels [2]. More recently, 2 Tb s −1 has been demonstrated using 20 channels [3]. Despite these achievements, OAM radio continues to attract much research attention as several unanswered questions remain about maximum practical performance limits in the radio domain.…”

Section: Introductionmentioning

confidence: 99%

Experimental evaluation of 3D printed spiral phase plates for enabling an orbital angular momentum multiplexed radio system

Allen

Pelham

et al. 2019

R. Soc. open sci.

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This paper evaluates the performance of three-dimensionally (3D) printed spiral phase plates (SPPs) for enabling an orbital angular momentum (OAM) multiplexed radio system. The design and realization of the SPPs by means of additive manufacturing exploiting a high-permittivity material is described. Modes 1 and 2 SPPs are then evaluated at 15 GHz in terms of 3D complex radiation pattern, mode purity and beam collimation by means of a 3D printed dielectric lens. The results with the lens yield a crosstalk of −8 dB for between modes 1 and −1, and −11.4 dB for between modes 2 and −2. We suggest a mode multiplexer architecture that is expected to further reduce the crosstalk for each mode. An additional loss of 4.2 dB is incurred with the SPPs inserted into the communication link, which is undesirable for obtaining reliable LTE-based communications. Thus, we suggest: using lower loss materials, seeking ways to reduce material interface reflections or alternative ways of OAM multiplexing to realize a viable OAM multiplexed radio system.

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Experiment on Over-100-Gbps Wireless Transmission with OAM-MIMO Multiplexing System in 28-GHz Band

Cited by 34 publications

References 21 publications

An Evaluation of Orbital Angular Momentum Multiplexing Technology

An Evaluation of Orbital Angular Momentum Multiplexing Technology

Perspective on using multiple orbital-angular-momentum beams for enhanced capacity in free-space optical communication links

Experimental evaluation of 3D printed spiral phase plates for enabling an orbital angular momentum multiplexed radio system

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