MAC-oriented programmable terahertz PHY via graphene-based Yagi-Uda antennas

Hosseininejad, Seyed Ehsan; Abadal, Sergi; Neshat, Mohammad; Faraji‐Dana, Reza; Suessmeier, Christoph; Bolívar, Peter Haring; Alarcón, Eduard; Cabellos‐Aparicio, Albert

doi:10.1109/wcnc.2018.8377201

Cited by 11 publications

(11 citation statements)

References 24 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In this context, the use of the lower part of the THz spectrum (our design operates at f = 2 THz) becomes extremely attractive due to the abundance of bandwidth that allows to satisfy the extreme data rate demands of 5G networks and beyond [45]. Communication in the THz band, however, requires overcoming high path losses mainly through directive antennas with very narrow beams and through the use of smart programmable reflectors [34], [46]- [49]. It is thus fundamental that these devices be capable of steering the THz beam with high precision to track the users and avoid interrupting communication.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Digital Metasurface Based on Graphene: An Application to Beam Steering in Terahertz Plasmonic Antennas

Hosseininejad

Rouhi

Neshat

et al. 2019

IEEE Trans. Nanotechnology

Self Cite

117

View full text Add to dashboard Cite

Metasurfaces, the two-dimensional counterpart of metamaterials, have caught great attention thanks to their powerful capabilities on manipulation of electromagnetic waves. Recent times have seen the emergence of a variety of metasurfaces exhibiting not only countless functionalities, but also a reconfigurable response. Additionally, digital or coding metasurfaces have revolutionized the field by describing the device as a matrix of discrete building block states, thus drawing clear parallelisms with information theory and opening new ways to model, compose, and (re)program advanced metasurfaces. This paper joins the reconfigurable and digital approaches, and presents a metasurface that leverages the tunability of graphene to perform beam steering at terahertz frequencies. A comprehensive design methodology is presented encompassing technological, unit cell design, digital metamaterial synthesis, and programmability aspects. By setting up and dynamically adjusting a phase gradient along the metasurface plane, the resulting device achieves beam steering at all practical directions. The proposed design is studied through analytical models and validated numerically, showing beam widths and steering errors well below 10 o and 5% in most cases. Finally, design guidelines are extracted through a scalability analysis involving the metasurface size and number of unit cell states.

show abstract

Section: Introductionmentioning

confidence: 99%

“…Some of such designs are array-based, and similar to programmable metasurfaces, they achieve reconfigurability by switching the state of its elements, i.e. tuning them in or out [32]- [34].…”

Section: Introductionmentioning

confidence: 99%

Digital Metasurface Based on Graphene: An Application to Beam Steering in Terahertz Plasmonic Antennas

Hosseininejad

Rouhi

Neshat

et al. 2019

IEEE Trans. Nanotechnology

Self Cite

117

View full text Add to dashboard Cite

show abstract

“…This has led to proposals where both the beam direction and frequency of resonance can be controlled with very simple approaches [19]. Leveraging these features, Hosseininejad et al [177] propose a programmable PHY interface to graphene antennas to expose such beam-switching and frequency tunability to upper layers. As an example, such a controller could easily implement the bit-level beamswitching [178] to implement beam multiplexing methods compatible with TS-OOK and the interference mitigation techniques discussed above.…”

Section: Beaming and Detectionmentioning

confidence: 99%

“…These properties have been studied when using graphene transistors as very compact THz sig-nal sources [23] exploiting the Dyakonov-Shur instability or also as direct modulators, translating changes in electrostatic biasing voltage into modulated plasmons [195]. Graphene antennas, as discussed above, can not only be miniaturized down to a few micrometers and still resonate in the THz band, but also deliver joint frequency-beam reconfigurability with unprecedented simplicity [19], [177].…”

Section: Beaming and Detectionmentioning

confidence: 99%

Survey on Terahertz Nanocommunication and Networking: A Top-Down Perspective

Lemić

Abadal

Tavernier

et al. 2021

IEEE J. Select. Areas Commun.

Self Cite

110

View full text Add to dashboard Cite

Recent developments in nanotechnology herald nanometer-sized devices expected to bring light to a number of groundbreaking applications. Communication with and among nanodevices will be needed for unlocking the full potential of such applications. As the traditional communication approaches cannot be directly applied in nanocommunication, several alternative paradigms have emerged. Among them, electromagnetic nanocommunication in the terahertz (THz) frequency band is particularly promising, mainly due to the breakthrough of novel materials such as graphene. For this reason, numerous research efforts are nowadays targeting THz band nanocommunication and consequently nanonetworking. As it is expected that these trends will continue in the future, we see it beneficial to summarize the current status in these research domains. In this survey, we therefore aim to provide an overview of the current THz nanocommunication and nanonetworking research. Specifically, we discuss the applications envisioned to be supported by nanonetworks operating in the THz band, together with the requirements that such applications pose on the underlying nanonetworks. Subsequently, we provide an overview of the current contributions on the different layers of the protocol stack, as well as the available channel models and experimentation tools. As the final contribution, we identify a number of open research challenges and outline several potential future research directions.

show abstract

“…This has led to proposals where both the beam direction and frequency of resonance can be controlled with very simple approaches [98]. Leveraging these features, Hosseininejad et al [123] propose a programmable PHY interface to graphene antennas to expose such beam-switching and frequency tunability to upper layers. As an example, such a controller could easily implement the bit-level beamswitching [114] to implement beam multiplexing methods compatible with TS-OOK and the interference mitigation techniques discussed above.…”

Section: Beaming and Detectionmentioning

confidence: 99%

Survey on Terahertz Nanocommunication and Networking: A Top-Down Perspective

Lemić¹,

Abadal²,

Tavernier³

et al. 2019

Preprint

Self Cite

View full text Add to dashboard Cite

2019 1 THz communication Features of the THz band; THz macro and nanoscale applications; design requirements for THz MAC protocols; classification of existing MAC protocols; open challenges for MAC protocols. Alsheikh et al. [15] 2016 THz nanocommunication Existing MAC protocols for WNSN; performance analysis and design guidelines for WNSN MAC protocols. Petrov et al. [14] 2016 THz communication SotA in THz band communication; engineering trade-offs in typical applications; open challenges and research directions in THz band communication. Dressler et al. [19] 2015 Internet of Nano-Things Bridging the outside world and in-body nanonodes for health-care applications; IoNT network architectures; simulation tools for in-body nanonetworks. Miraz et al. [20] 2015 Internet of Nano-Things Short overview and future research directions pertaining to the Internet of Things (IoT), Internet of Everything (IoE), and IoNT. Akyildiz et al. [21] 2015 Internet of Nano-Things Introduction to the Internet of Bio-Nano Things (IoBNT); bridging the outside world and the IoBNT; open challenges in the IoBNT. Akyildiz et al. [12] 2014 THz communication SotA in THz band transceivers and antennas; open challenges from communication and networking perspectives. Akyildiz et al. [13] 2014 THz communication THz band applications at macro and nanoscale; SotA in THz band transceivers and antennas; open challenges from communication and networking perspectives; simulation and experimentation tools for THz band communication. Balasubramaniam et al. [18] 2013 Internet of Nano-Things Challenges in realizing the IoNT (data collection and routing, bridging the outside world and nanonetworks, etc.); possible IoNT applications. Rikhtegar et al. [3] 2013 THz nanocommunication Molecular and electromagnetic (THz) communication for nanoscale applications; summary of nanoscale communication paradigms and potential applications. Jornet et al.[22] 2012 Internet of Nano-Things SotA, open challenges, and research directions in the THz nanocommunication and Internet of Multimedia Nano-Things (IoMNT). Akyildiz et al. [7] 2010 THz nanocommunication SotA in nanodevice technology; summaries of WNSN applications and architectures; overview of nanocommunication and networking challenges. Akyildiz et al. [17] 2010 Internet of Nano-Things SotA in THz nanocommunication for the IoNT; research challenges (channel modeling, information encoding, and protocols for the IoNT).

show abstract

MAC-oriented programmable terahertz PHY via graphene-based Yagi-Uda antennas

Cited by 11 publications

References 24 publications

Digital Metasurface Based on Graphene: An Application to Beam Steering in Terahertz Plasmonic Antennas

Digital Metasurface Based on Graphene: An Application to Beam Steering in Terahertz Plasmonic Antennas

Survey on Terahertz Nanocommunication and Networking: A Top-Down Perspective

Survey on Terahertz Nanocommunication and Networking: A Top-Down Perspective

Contact Info

Product

Resources

About