6G Technologies: Key Drivers, Core Requirements, System Architectures, and Enabling Technologies

Zong, Baiqing; Chen, Fan; Wang, Xiyu; Duan, Xiangyang; Wang, Baojie; Wang, Jianwei

doi:10.1109/mvt.2019.2921398

Cited by 332 publications

(215 citation statements)

References 8 publications

Supporting

Mentioning

214

Contrasting

Order By: Relevance

“…a UAV can adopt multiple transmission modes if it has multiple transmission destinations. Each UAV sets a QoS threshold for its transmissions according to its sensing application, and adopts the transmission mode to satisfy the QoS threshold for each link 3 . When multiple transmission modes satisfy the transmission QoS threshold, the UAV selects the mode with the highest data rate.…”

Section: A Joint Sensing and Transmission Protocolmentioning

confidence: 99%

“…An extremely large number of Internet of Things (IoT) devices that collect images and sensing information of the real world are expected to spread further in the 6G networks, and an extremely large number of connections that are approximately 10 fold (10 million devices per square km) more than the 5G requirements are needed [2]. In addition to the approach of connecting a large number of IoT devices to a network, the IoT devices are expected to evolve to have functions for detecting the real world and collecting various sensory data intelligently [3].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Beyond D2D: Full Dimension UAV-to-Everything Communications in 6G

Zhang

Song

2020

IEEE Trans. Veh. Technol.

118

View full text Add to dashboard Cite

In this paper, we consider an Internet of unmanned aerial vehicles (UAVs) over cellular networks, where UAVs work as aerial users to collect various sensory data, and send the collected data to their transmission destinations over cellular links. Unlike the terrestrial users in the conventional cellular networks, different UAVs have various communication requirements due to their sensing applications, and a more flexible communication framework is in demand. To tackle this problem, we propose a UAV-to-Everything (U2X) networking, which enables the UAVs to adjust their communication modes full dimensionally according to the requirements of their sensing applications. In this article, we first introduce the concept of U2X communications, and elaborate on its three communication modes. Afterwards, we discuss the key techniques of the U2X communications, including joint sensing and transmission protocol, UAV trajectory design, and radio resource management. A reinforcement learningbased mathematical framework for U2X communications is then proposed. Finally, the extensions of the U2X communications are presented.2) UAV Transmission: After UAV sensing, the collected data will be transmitted to the corresponding BS or UE, which is defined as the transmission destination. For each UAV, the transmission channel model and frequency band are regulated by the 3GPP [23]. To satisfy the transmission requirements raised by various applications, we provide three communication modes for the UAVs, namely U2N communications, U2U communications, and U2D communications. The communication mode for each link is selected by the UAV according to its location and the communication requirements of the sensing application. The descriptions of these three communication modes will be elaborated on in Section II-B.

show abstract

Section: A Joint Sensing and Transmission Protocolmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Beyond D2D: Full Dimension UAV-to-Everything Communications in 6G

Zhang

Song

2020

IEEE Trans. Veh. Technol.

118

View full text Add to dashboard Cite

show abstract

“…Typical applications of MBBLL include mobile augmented reality (AR), virtual reality (VR), and holographic teleconferencing [2]. Such applications require high data rates (downlink peak rate >1Tbps, user experienced rate >10Gbps [3]) for high definition video streams and large amounts of interactive instructions, as well as low latencies for real-time voices (<0.1ms) and immediate control responses (<1ms) [7].…”

Section: B Evolution: Scenario Centric and Comfort Based 6gmentioning

confidence: 99%

“…Zong et al have explored the key drivers and new logical start of 6G [2], while Z. Zhang et al also shared their viewpoints on 6G and detailed a number of promising techniques, such as terahertz (THz) communications, large intelligent surfaces (LISs), orbital angular momentum (OAM), blockchain-based spectrum sharing, quantum communications and computing, molecular communications [3].…”

mentioning

confidence: 99%

6G: Opening New Horizons for Integration of Comfort, Security and Intelligence

Gui¹,

Liu²,

Kato³

et al. 2020

Preprint

View full text Add to dashboard Cite

<p>The innovations of sixth generation wireless communication (6G) as compared to fifth generation (5G) are considered in this paper based on the analysis of related works. With the aim of improving multiple communication targets in each service, five 6G core services are identified for different target requirements. Two centricities and eight key performance indices (KPIs) are detailed to describe these services, and enabling technologies are discussed to satisfy the KPIs. A 6G architecture is proposed as an integrated system of the enabling technologies, and is then illustrated using four typical application scenarios. Potential challenges for development of 6G technology is then discussed and possible solutions are proposed. Finally, opportunities for exploring 6G are analyzed in order to guide future research.</p>

show abstract

“…At the forefront of 5G communication and beyond systems, one of the core characteristics aimed to be improved is the data rates it can provide and the spectral efficiency it can achieve . On the other hand, future 6G systems are expected to serve a new set of applications such as haptics, telemedicine, brain‐machine interfaces, mixed reality, virtual reality, augmented reality (AR), and so on, as pointed out in References and , and some other recent studies. These services require the simultaneous achievement of (i) high spectral efficiency (high data rates); (ii) low latency with good reliability; and (iii) low complexity.…”

Section: Introductionmentioning

confidence: 99%

Orthogonal frequency division multiplexing with subcarrier power modulation for doubling the spectral efficiency of 6G and beyond networks

Hamamreh

Hajar

Abewa

2020

Trans Emerging Tel Tech

View full text Add to dashboard Cite

With the emergence of new applications (eg, extended reality [XR] and haptics), which require to be simultaneously served not just with low latency and sufficient reliability, but also with high spectral efficiency, future networks (ie, 6G and beyond) should be capable of meeting this demand by introducing new effective transmission designs. Motivated by this, a novel modulation technique termed as orthogonal frequency division multiplexing with subcarrier power modulation (OFDM-SPM) is proposed for providing highly spectral-efficient data transmission with low-latency and less-complexity for future 6G wireless communication systems. OFDM-SPM utilizes the power of subcarriers in OFDM blocks as a third dimension to convey extra information bits while reducing both complexity and latency compared to conventional schemes. In this article, the concept of OFDM-SPM is introduced and its validity as a future adopted modulation technique is investigated over a wireless multipath Rayleigh fading channel. The proposed system structure is explained, an analytical expression of the bit error rate (BER) is derived, and numerical simulations of BER and throughput performances of OFDM-SPM are carried out. OFDM-SPM is found to greatly enhance the spectral efficiency where it is capable of doubling it. In addition, OFDM-SPM introduces negligible complexity to the system, does not exhibit error propagation, reduces the transmission delay, and decreases the transmission power by half.

show abstract

6G Technologies: Key Drivers, Core Requirements, System Architectures, and Enabling Technologies

Cited by 332 publications

References 8 publications

Beyond D2D: Full Dimension UAV-to-Everything Communications in 6G

Beyond D2D: Full Dimension UAV-to-Everything Communications in 6G

6G: Opening New Horizons for Integration of Comfort, Security and Intelligence

Orthogonal frequency division multiplexing with subcarrier power modulation for doubling the spectral efficiency of 6G and beyond networks

Contact Info

Product

Resources

About