5G: A Tutorial Overview of Standards, Trials, Challenges, Deployment, and Practice

Shafi, Mansoor; Molisch, Andreas F.; Smith, Peter J.; Haustein, Thomas; Zhu, Pengcheng; Silva, Prasan De; Tufvesson, Fredrik; Benjebbour, Anass; Wunder, Gerhard

doi:10.1109/jsac.2017.2692307

Cited by 1,844 publications

(1,069 citation statements)

References 148 publications

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“…As expected, a higher D max leads to a lower delay outage probability. When D max = 1 ms, the delay outage probability achieved by our proposed algorithm can be as low as 3.5 × 10 −12 , when θ is chosen as θ = 10 −1.8 , which satisfies the stringent delay requirement of URLLC [4], while for the case of D max = 2 ms, the delay-outage probability can reach 10 −15 when θ is set as θ = 10 −2 . Hence, the delay exponent can be adaptively set to satisfy the diverse delay requirements.…”

Section: A Single-user Casementioning

confidence: 94%

“…Although this informationtheoretic framework is eminently suitable for analyzing the single-user link-efficiency, it gives no cognizance to the delay from data-link layer. One of the most challenging 5G operational models is constituted by ultra-reliable and low-latency communications (URLLC) [4] conceived for supporting tactile Internet applications [5], vehicle-to-vehicle communications [6], remote control of industrial manufacturing, etc. These applications have stringent end-to-end delay requirements (say around 1 ms).…”

Section: Introductionmentioning

confidence: 99%

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Low-Latency C-RAN: An Next-Generation Wireless Approach

Ren

Liu

Pan

et al. 2018

IEEE Veh. Technol. Mag.

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Abstract-Cloud radio access networking (C-RAN) constitutes a promising architecture for next-generation systems. Beneficial centralized signal processing techniques can be realized under the C-RAN architecture. Furthermore, given the recent rapid development of cloud computing, the C-RAN architecture is an ideal platform for supporting network function virtualization (NFV), software-defined networking (SDN) and artificial intelligence (AI). However, most of the existing contributions on C-RAN are mainly focused on the physical layer issues. The nextgeneration networks are expected to support compelling wireless applications satisfying diverse delay requirements, such as ultrareliable and low-latency communications (URLLC), etc. Hence, we invoke the effective capacity theory for statistical delaybounded QoS provision in C-RAN architectures, where the delay is taken into account. Based on the system model proposed, we conceive sophisticated power allocation schemes for maximizing the effective capacity of both single-user and multi-user scenarios. Our simulation results show that a low delay outage probability can be guaranteed by appropriately choosing the delay exponent. Furthermore, our simulation results demonstrate that the proposed algorithm significantly outperforms the existing algorithms in terms of the achievable effective capacity. Finally, some open research challenges are highlighted.

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Section: A Single-user Casementioning

confidence: 94%

Section: Introductionmentioning

confidence: 99%

Low-Latency C-RAN: An Next-Generation Wireless Approach

Ren

Liu

Pan

et al. 2018

IEEE Veh. Technol. Mag.

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“…Currently, various massive MIMO antennas with various number of elements and subarrays for each candidate frequency bands have been employed in 5G testbeds [28]. Table 1 summarizes typical examples of massive MIMO to the testbeds.…”

Section: System Trialsmentioning

confidence: 99%

Real Challenge of Mobile Networks Toward 5G — An Expectation for Antennas & Propagation —

Watanabe

2019

IEICE Trans. Commun.

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“…The future cellular communication system generations are expected to support, in a unified framework, a wide scale of services, such as enhanced mobile broadband (eMBB) with Gbps data rates, massive machine type communications (mMTC), as well as ultra-reliable and low latency machine type communications (URRLC) [1]. There is a widespread agreement that such an ambitious goal will be realized in a combination of asynchronous heterogeneous network scenarios, requiring the physical modulation schemes with several challenging elements, including superior spectrum containment, improved bandwidth efficiency, etc.…”

Section: Introductionmentioning

confidence: 99%

Filtered multitone multicarrier modulation with partially overlapping sub-channels

Shao

Yli‐Kaakinen

et al. 2017

2017 25th European Signal Processing Conference (EUSIPCO)

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Abstract-Future wireless networks demand multicarrier modulation schemes with improved spectrum efficiency and superior spectrum containment. Orthogonal frequency division multiplexing (OFDM) has been the favorite technique in recent developments, but due to its limited spectrum containment, various alternative schemes are under consideration for future systems. Theoretically, it is not possible to reach maximum spectrum efficiency, high spectral containment, and orthogonality of subcarriers simultaneously, when using quadrature amplitude modulation (QAM) for subcarriers. This has motivated the study of non-orthogonal multicarrier modulation schemes. This paper focuses on the filtered multitone (FMT) scheme, one of the classical configurations of filter bank multicarrier (FBMC) modulation utilizing QAM subcarrier symbols. Our main aim is to improve the spectral efficiency of FMT by introducing controlled overlap of adjacent subchannels. An analytical model is developed for evaluating the tradeoffs between spectrum efficiency and intercarrier interference (ICI) introduced by the overlap. An efficient fast convolution waveform processing scheme is adopted for the generation of the proposed waveform. It allows effective adjustment of the roll-off and subcarrier spacing to facilitate waveform adaptation in real time. Analytical studies, confirmed by simulation results, indicate that the proposed FMT system can obtain significant spectral density improvement without requiring additional ICI cancellation techniques.

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5G: A Tutorial Overview of Standards, Trials, Challenges, Deployment, and Practice

Cited by 1,844 publications

References 148 publications

Low-Latency C-RAN: An Next-Generation Wireless Approach

Low-Latency C-RAN: An Next-Generation Wireless Approach

Real Challenge of Mobile Networks Toward 5G — An Expectation for Antennas & Propagation —

Filtered multitone multicarrier modulation with partially overlapping sub-channels

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