Zero Crossing Modulation for Communication with Temporally Oversampled 1-Bit Quantization

Fettweis, Gerhard; Dörpinghaus, Meik; Bender, Sandra; Landau, Lukas T. N.; Neuhaus, Peter; Schlüter, Martin

doi:10.1109/ieeeconf44664.2019.9048794

Cited by 32 publications

(25 citation statements)

References 22 publications

(53 reference statements)

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“…Therefore, a new design paradigm for 6G waveforms could be to find modulation schemes which require very low-resolution A/D converters, the minimum being 1-bit A/D converters. One approach can be the novel waveform design "zero-crossing modulation" [47]. Another approach could be to use continuous phase modulation (CPM) [48].…”

Section: New Waveformsmentioning

confidence: 99%

Towards 6G wireless communication networks: vision, enabling technologies, and new paradigm shifts

You

Wang

Huang

et al. 2020

Sci. China Inf. Sci.

1,325

495

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The fifth generation (5G) wireless communication networks are being deployed worldwide from 2020 and more capabilities are in the process of being standardized, such as mass connectivity, ultra-reliability, and guaranteed low latency. However, 5G will not meet all requirements of the future in 2030 and beyond, and sixth generation (6G) wireless communication networks are expected to provide global coverage, enhanced spectral/energy/cost efficiency, better intelligence level and security, etc. To meet these requirements, 6G networks will rely on new enabling technologies, i.e., air interface and transmission technologies and novel network architecture, such as waveform design, multiple access, channel coding schemes, multi-antenna technologies, network slicing, cell-free architecture, and cloud/fog/edge computing. Our vision on 6G is that it will have four new paradigm shifts. First, to satisfy the requirement of global coverage, 6G will not be limited to terrestrial communication networks, which will need to be complemented with non-terrestrial networks such as satellite and unmanned aerial vehicle (UAV) communication networks, thus achieving a space-air-ground-sea integrated communication network. Second, all spectra will be fully explored to further increase data rates and connection density, including the sub-6 GHz, millimeter wave (mmWave), terahertz (THz), and optical frequency bands. Third, facing the big datasets generated by the use of extremely heterogeneous networks, diverse communication scenarios, large numbers of antennas, wide bandwidths, and new service requirements, 6G networks will enable a new range of smart applications with the aid of artificial intelligence (AI) and big data technologies. Fourth, network security will have to be strengthened when developing 6G networks. This article provides a comprehensive survey of recent advances and future trends in these four aspects. Clearly, 6G with additional technical requirements beyond those of 5G will enable faster and further communications to the extent that the boundary between physical and cyber worlds disappears.

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Section: New Waveformsmentioning

confidence: 99%

Towards 6G wireless communication networks: vision, enabling technologies, and new paradigm shifts

You

Wang

Huang

et al. 2020

Sci. China Inf. Sci.

1,325

495

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“…The equalization methods could also include reconfigurable analog structures. In this line, a promising method is given by the temporally oversampled zerocrossing modulation, where information is encoded in the temporal distance between two zero crossings [70]. As shown in Table 4, a number of other modulation methods have been introduced, which can be classified into orthogonal, biorthogonal, and nonorthogonal categories.…”

Section: A Modulation Waveforms and Codesmentioning

confidence: 99%

6G Wireless Systems: Vision, Requirements, Challenges, Insights, and Opportunities

Shafi²,

et al. 2021

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Mobile communications have been undergoing a generational change every ten years or so. However, the time difference between the so-called "G's" is also decreasing.While fifth-generation (5G) systems are becoming a commercial reality, there is already significant interest in systems beyond 5G, which we refer to as the sixth generation (6G) of wireless systems. In contrast to the already published papers on the topic, we take a top-down approach to 6G. More precisely, we present a holistic discussion of 6G systems beginning with lifestyle and societal changes driving the need for next-generation networks. This is followed by a discussion into the technical requirements needed to enable 6G applications, based on which we dissect key challenges and possibilities for practically realizable system solutions across all layers of the Open Systems Interconnection stack (i.e., from applications to the physical layer). Since many of the 6G applications

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“…In this section, we briefly review ZXM, which is specifically designed for systems employing 1-bit quantization and temporal oversampling at the receiver. The concept has been studied in [15]. The underlying idea is to encode the information in the temporal distance between zero-crossings, as all magnitude information is lost after 1-bit quantization.…”

Section: Review Of Zero-crossing Modulationmentioning

confidence: 99%

“…Hence, in [15], it has been stated that for systems employing 1-bit quantization and temporal oversampling, the information should be encoded in the distance between zero-crossings, a concept denoted as zero-crossing modulation (ZXM). In [16], several ZXM schemes have been compared w. r. t. numerically computed lower bounds on the spectral efficiency (SE) for an AWGN channel.…”

Section: Introductionmentioning

confidence: 99%

Zero-Crossing Modulation for Wideband Systems Employing 1-Bit Quantization and Temporal Oversampling: Transceiver Design and Performance Evaluation

Neuhaus

Dörpinghaus

Fettweis

2021

IEEE Open J. Commun. Soc.

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Next-generation wireless communications systems are anticipated to utilize the vast amount of available spectrum in the millimeterwave and sub-terahertz bands above 100 GHz to meet the ever-increasing demand for higher data rates. However, the analog-todigital converter (ADC) power consumption is expected to be a major bottleneck if conventional system designs are employed at these frequencies. Instead, shifting the ADC resolution from the amplitude domain to the time domain by employing 1-bit quantization and temporal oversampling w.r.t. the Nyquist rate is expected to be more energy-efficient.Hence, we consider a system employing 1-bit quantization and temporal oversampling at the receiver, which operates on a wideband line-of-sight channel. We present a practical transceiver design for a zero-crossing modulation waveform, which combines faster-than-Nyquist signaling and runlength-limited (RLL) transmit sequences. To this aim, we derive four fixed-length finite-state machine RLL encoders enabling efficient transmit signal construction and soft-demapping at the receiver. Moreover, we propose a soft-output equalizer, which approximates maximum a posteriori RLL symbol detection. We evaluate the system performance in terms of peak-to-average-power ratio, coded block error rate, and a lower bound on the spectral efficiency (SE) w.r.t. a fractional power containment bandwidth. Our numerical results show that SEs of up to 4 bit/s/Hz are achievable with the presented transceiver design.

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Zero Crossing Modulation for Communication with Temporally Oversampled 1-Bit Quantization

Cited by 32 publications

References 22 publications

Towards 6G wireless communication networks: vision, enabling technologies, and new paradigm shifts

Towards 6G wireless communication networks: vision, enabling technologies, and new paradigm shifts

6G Wireless Systems: Vision, Requirements, Challenges, Insights, and Opportunities

Zero-Crossing Modulation for Wideband Systems Employing 1-Bit Quantization and Temporal Oversampling: Transceiver Design and Performance Evaluation

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