On the Reliability of Wireless Virtual Reality at Terahertz (THz) Frequencies

Chaccour, Christina; Amer, Ramy; Zhou, Bo; Saad, Walid

doi:10.1109/ntms.2019.8763780

Cited by 63 publications

(64 citation statements)

References 14 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Streaming live 6DoF content to deliver a "be there" experience is basically a forward-looking use case [239]. The results presented in [240] show that THz can deliver rates up to 16.4 Gbps with a delay threshold of 30 ms given that the impact of molecular absorption on the THz links, which considerably limits the communication range of the small base station, is relieved through network densification.…”

Section: B Terahertz Virtual Reality Perception Via Cellular Networkmentioning

confidence: 99%

Terahertz Band: The Last Piece of RF Spectrum Puzzle for Communication Systems

Elayan

Amin

Shihada

et al. 2020

IEEE Open J. Commun. Soc.

388

219

View full text Add to dashboard Cite

Ultra-high bandwidth, negligible latency and seamless communication for devices and applications are envisioned as major milestones that will revolutionize the way by which societies create, distribute and consume information. The remarkable expansion of wireless data traffic that we are witnessing recently has advocated the investigation of suitable regimes in the radio spectrum to satisfy users' escalating requirements and allow the development and exploitation of both massive capacity and massive connectivity of heterogeneous infrastructures. To this end, the Terahertz (THz) frequency band (0.1-10 THz) has received noticeable attention in the research community as an ideal choice for scenarios involving high-speed transmission. Particularly, with the evolution of technologies and devices, advancements in THz communication is bridging the gap between the millimeter wave (mmW) and optical frequency ranges. Moreover, the IEEE 802.15 suite of standards has been issued to shape regulatory frameworks that will enable innovation and provide a complete solution that crosses between wired and wireless boundaries at 100 Gbps. Nonetheless, despite the expediting progress witnessed in THz wireless research, the THz band is still considered one of the least probed frequency bands. As such, in this work, we present an up-to-date review paper to analyze the fundamental elements and mechanisms associated with the THz system architecture. THz generation methods are first addressed by highlighting the recent progress in the electronics, photonics as well as plasmonics technology. To complement the devices, we introduce the recent channel models available for indoor, outdoor as well as nanoscale propagation at THz band frequencies. A comprehensive comparison is then presented between the THz wireless communication and its other contenders by treating in depth the limitations associated with each communication technology. In addition, several applications of THz wireless communication are discussed taking into account the various length scales at which such applications occur. Further, as standardization is a fundamental aspect in regulating wireless communication systems, we highlight the milestones achieved regarding THz standardization activities. Finally, a future outlook is provided by presenting and envisaging several potential use cases and attempts to guide the deployment of the THz frequency band and mitigate the challenges related to high frequency transmission. ). Fig. 1. Wireless Roadmap Outlook up to the year 2035.

show abstract

Section: B Terahertz Virtual Reality Perception Via Cellular Networkmentioning

confidence: 99%

Terahertz Band: The Last Piece of RF Spectrum Puzzle for Communication Systems

Elayan

Amin

Shihada

et al. 2020

IEEE Open J. Commun. Soc.

388

219

View full text Add to dashboard Cite

show abstract

“…Similarly, automated overtake demands a 10 ms delay and 99.999% reliability. Despite the uncertainty of the THz channel, high reliability can be achieved with high bandwidths and sufficiently-dense networks, as demonstrated in [12] for the case of THz virtual reality. THz-band communications are thus envisioned to be a key technology that can satisfy the reliability and real-time traffic demands of future vehicular networks [13], to enhance safety solutions and enable new applications, such as platooning and remote driving.…”

Section: A Vehicular and Drone-to-drone Communicationsmentioning

confidence: 99%

Next Generation Terahertz Communications: A Rendezvous of Sensing, Imaging, and Localization

et al. 2020

View full text Add to dashboard Cite

Terahertz (THz)-band communications are celebrated as a key enabling technology for next-generation wireless systems that promises to integrate a wide range of datademanding and delay-sensitive applications. Following recent advancements in optical, electronic, and plasmonic transceiver design, integrated, adaptive, and efficient THz systems are no longer far-fetched. In this paper, we present a progressive vision of how the traditional "THz gap" will transform into a "THz rush" over the next few years. We posit that the breakthrough that the THz band will introduce will not be solely driven by achievable high data rates, but more profoundly by the interaction between THz sensing, imaging, and localization applications. We first detail the peculiarities of each of these applications at the THz band. Then, we illustrate how their coalescence results in enhanced environment-aware system performance in beyond-5G use cases. We further discuss the implementation aspects of this merging of applications in the context of shared and dedicated resource allocation, highlighting the role of machine learning.

show abstract

“…Moreover, several channel distances are selected to cover various nominated terahertz applications. For example, terahertz nano-sensors are supposed to communicate in a very short distance in the order of 0.1-10 cm or less, while terahertz communications are also nominated to provide terabit per second ultra-high-speed video communication link at around 1 m distance for home entrainment devices like TV or virtual reality (VR) [54]. Terahertz application is also extended to wireless personal or local networks where the channel distance is up to a few meters.…”

Section: F Mimo Performance In the Terahertz Bandmentioning

confidence: 99%

Analyzing the Impact of Molecular Re-Radiation on the MIMO Capacity in High-Frequency Bands

Hoseini

Ding

Hassan

et al. 2020

IEEE Trans. Veh. Technol.

View full text Add to dashboard Cite

In this paper, we show how the absorption and reradiation energy from molecules in the air can influence the Multiple Input Multiple Output (MIMO) performance in highfrequency bands, e.g., millimeter wave (mmWave) and terahertz. In more detail, some common atmosphere molecules, such as oxygen and water, can absorb and re-radiate energy in their natural resonance frequencies, such as 60 GHz, 180 GHz and 320 GHz. Hence, when hit by electromagnetic waves, molecules will get excited and absorb energy, which leads to an extra path loss and is known as molecular attenuation. Meanwhile, the absorbed energy will be re-radiated towards a random direction with a random phase. These re-radiated waves also interfere with the signal transmission. Although, the molecular re-radiation was mostly considered as noise in literature, recent works show that it is correlated to the main signal and can be viewed as a composition of multiple delayed or scattered signals. Such a phenomenon can provide non-line-of-sight (NLoS) paths in an environment that lacks scatterers, which increases spatial multiplexing and thus greatly enhances the performance of MIMO systems. Therefore in this paper, we explore the scattering model and noise models of molecular re-radiation to characterize the channel transfer function of the NLoS channels created by atmosphere molecules. Our simulation results show that the re-radiation can increase MIMO capacity up to 3 folds in mmWave and 6 folds in terahertz for a set of realistic transmit power, distance, and antenna numbers. We also show that in the high SNR, the re-radiation makes the open-loop precoding viable, which is an alternative to beamforming to avoid beam alignment sensitivity in high mobility applications.

show abstract

On the Reliability of Wireless Virtual Reality at Terahertz (THz) Frequencies

Cited by 63 publications

References 14 publications

Terahertz Band: The Last Piece of RF Spectrum Puzzle for Communication Systems

Terahertz Band: The Last Piece of RF Spectrum Puzzle for Communication Systems

Next Generation Terahertz Communications: A Rendezvous of Sensing, Imaging, and Localization

Analyzing the Impact of Molecular Re-Radiation on the MIMO Capacity in High-Frequency Bands

Contact Info

Product

Resources

About