Possibilities of Using THZ-Band Radio Communication Channels for Super High-Rate Backhaul

Нарытник, Т. Н.

doi:10.1615/telecomradeng.v73.i15.40

Cited by 10 publications

(9 citation statements)

References 3 publications

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“…With ever increasing wireless data rate, mobile backhaul for transferring large bandwidth signals between base stations and end users is one of the primary goals using THz band. Employing a highly efficient wireless backhaul service by connecting multiple base stations with small cell size will ensure high data rate to the end users [38]. Thus, enabling photonics based wireless links (millimeter to THz frequency band) offers high efficiency and cost-effective solution to the mobile backhauling and 'last mile' connections [39][40][41].…”

Section: Introductionmentioning

confidence: 99%

Live Streaming of Uncompressed HD and 4K Videos Using Terahertz Wireless Links

et al. 2018

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Taming the Terahertz waves (100 GHz-10 THz) is considered the next frontier in wireless communications. While components for the ultra-high bandwidth Terahertz wireless communications were in rapid development over the past several years, however, their commercial availability is still lacking. Nevertheless, as we demonstrate in this paper, due to recent advances in the microwave and infrared photonics hardware, it is now possible to assemble high performance hybrid THz communication systems for real-life applications. As an example, in this work, we present design and performance evaluation of the photonics-based Terahertz wireless communication system for the transmission of uncompressed 4K video feed that is built using all commercially available system components. In particular, two independent tunable lasers operating in the infrared C-band are used as a source for generating the Terahertz carrier wave using frequency difference generation in a photomixer. One of the IR laser beams carries the data which is intensity modulated using the LiNbO3 electro-optic modulator. A zero bias Schottky detector is used as the detector and demodulator of the data stream followed by the high-gain and low-noise pre-amplifier. The Terahertz carrier frequency is fixed at 138 GHz and the system is characterized by measuring the bit error rate for the pseudo random bit sequences at 5.5 Gbps. By optimizing the link geometry and decision parameters, an errorfree (BER<10 -10 ) transmission at a link distance of 1m is achieved. Finally, we detail integration of a professional 4K camera into the THz communication link, and demonstrate live streaming of the uncompressed HD and 4K video followed by analysis of the link quality.

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Section: Introductionmentioning

confidence: 99%

Live Streaming of Uncompressed HD and 4K Videos Using Terahertz Wireless Links

et al. 2018

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“…For capacity enhancement and larger bandwidth with Tbps transmission, the Terahertz band between 200 and 300 GHz has shown low atmospheric losses [116]. The wireless fiber extender is also an interesting scenario to extend The use of massive MIMO arrays can be used in an adaptive manner to modify the transmit and receive beams to accommodate the changes in the environment than to physically readjusting the arrays [103]. They can be used to communicate with multiple backhaul stations by electronic beam steering.…”

Section: A Applications For Macro Scale Terahertz Networkmentioning

confidence: 99%

“…The Terahertz band is emerging as the most promising way to realize Gbps link, due to increase in the current traffic demand [103]. A radio link over 120 GHz band for data transmission at the rate of 10 Gbps to the range of over 800 m is presented in [137].…”

Section: Other Applications For Terahertz Communicationsmentioning

confidence: 99%

MAC Protocols for Terahertz Communication: A Comprehensive Survey

Ghafoor

Boujnah

Rehmani

et al. 2020

IEEE Commun. Surv. Tutorials

106

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Terahertz communication is emerging as a future technology to support Terabits per second link with highlighting features as high throughput and negligible latency. However, the unique features of the Terahertz band such as high path loss, scattering, and reflection pose new challenges and results in short communication distance. The antenna directionality, in turn, is required to enhance the communication distance and to overcome the high path loss. However, these features in combine negate the use of traditional medium access protocols (MAC). Therefore, novel MAC protocol designs are required to fully exploit their potential benefits including efficient channel access, control message exchange, link establishment, mobility management, and line-of-sight blockage mitigation. An in-depth survey of Terahertz MAC protocols is presented in this paper. The paper highlights the key features of the Terahertz band which should be considered while designing an efficient Terahertz MAC protocol, and the decisions which if taken at Terahertz MAC layer can enhance the network performance. Different Terahertz applications at macro and nano scales are highlighted with design requirements for their MAC protocols. The MAC protocol design issues and considerations are highlighted. Further, the existing MAC protocols are also classified based on network topology, channel access mechanisms, and link establishment strategies as Transmitter and Receiver initiated communication. Open challenges and future research directions on Terahertz MAC protocols are also highlighted. Index Terms-Terahertz band, terahertz communication network, terahertz technology, terahertz physical layer, terahertz MAC layer, terahertz channel model, terahertz propagation model, terahertz antenna, terahertz transceivers. I. INTRODUCTION T HE DEMAND for wireless data traffic has increased significantly since the evolution of Internet and Mobile Technology and is projected to exceed Petabytes by 2021 [1].

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“…Again, high atmosphere attenuation of THz wave is still the major obstacle for implementation of largearea radio communications. More critically, limited by the currently obtainable emission power of THz transmitters, the range of THz communication is estimated as several kilometers [147]. To overcome this situation, a THz point-to-point wireless links with short reach to support high-speed access and backhaul is so far predictable.…”

Section: Terahertz For Wireless Access and Backhaul Networkmentioning

confidence: 99%

Terahertz band: Lighting up next-generation wireless communications

Zhang

2021

China Commun.

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With the explosion of wireless data rates, the terahertz (THz) band (0.1-10 THz) is envisioned as a promising candidate to break the existing bandwidth bottleneck and satisfy the ever-increasing capacity demand. The THz wireless communications feature a number of attractive properties, such as potential terabit-per-second capacity and high energy efficiency. In this paper, an overview on the state-of-the-art THz communications is studied, with a special focus on key technologies of THz transceivers and THz communication systems. The recent progress on both electronic and photonic THz transmitters are presented, and then the THz receivers operating in direct-and heterodyne reception modes are individually surveyed. Based on the THz transceiver schemes, three kinds of THz wireless communication systems are reviewed, including solid-state electronic systems, photonics-assisted systems and all-photonics systems. The prospective key enabling technologies, corresponding challenges and research directions for lighting up high-speed THz communication systems are discussed as well.

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Possibilities of Using THZ-Band Radio Communication Channels for Super High-Rate Backhaul

Cited by 10 publications

References 3 publications

Live Streaming of Uncompressed HD and 4K Videos Using Terahertz Wireless Links

Live Streaming of Uncompressed HD and 4K Videos Using Terahertz Wireless Links

MAC Protocols for Terahertz Communication: A Comprehensive Survey

Terahertz band: Lighting up next-generation wireless communications

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