Position-Aided Beam Learning for Initial Access in mmWave MIMO Cellular Networks

Hu, Anzhong; He, Jiguang

doi:10.1109/jsyst.2020.3027757

Cited by 7 publications

(6 citation statements)

References 30 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…3) Codebook Optimization: IA is the procedure in which a new UE establishes a physical link with a BS to switch from an idle mode to a connected mode [240]. We can treat the IA procedure as localization without UE prior information.…”

Section: Offline Optimizationmentioning

confidence: 99%

Section: Offline Optimizationmentioning

confidence: 99%

See 1 more Smart Citation

A Tutorial on Terahertz-Band Localization for 6G Communication Systems

Chen

Sarieddeen

Ballal

et al. 2022

IEEE Commun. Surv. Tutorials

View full text Add to dashboard Cite

Terahertz (THz) communications are celebrated as key enablers for converged localization and sensing in future sixth-generation (6G) wireless communication systems and beyond. Instead of being a byproduct of the communication system, localization in 6G is indispensable for location-aware communications. Towards this end, we aim to identify the prospects, challenges, and requirements of THz localization techniques. We first review the history and trends of localization methods and discuss their objectives, constraints, and applications in contemporary communication systems. We then detail the latest advances in THz communications and introduce THzspecific channel and system models. Afterward, we formulate THz-band localization as a 3D position/orientation estimation problem, detailing geometry-based localization techniques and describing potential THz localization and sensing extensions. We further formulate the offline design and online optimization of THz localization systems, provide numerical simulation results, and conclude by providing lessons learned and future research directions. Preliminary results illustrate that under the same transmission power and array footprint, THz-based localization outperforms millimeter wave-based localization. In other words, the same level of localization performance can be achieved at THz-band with less transmission power or a smaller footprint.

show abstract

Section: Offline Optimizationmentioning

confidence: 99%

Section: Offline Optimizationmentioning

confidence: 99%

A Tutorial on Terahertz-Band Localization for 6G Communication Systems

Chen

Sarieddeen

Ballal

et al. 2022

IEEE Commun. Surv. Tutorials

View full text Add to dashboard Cite

show abstract

“…3) Codebook Optimization: Initial access (IA) is the procedure in which a new UE establishes a physical link with a BS to switch from idle mode to connected mode [192]. We can treat the IA procedure as localization without UE prior information.…”

Section: Offline Optimizationmentioning

confidence: 99%

“…• Iterative search: Hierarchical codebooks can be designed to transmit pilots over wider sectors at the beginning and then narrow down the beams to find the best angular space [196]- [198]. • Scene-aware search: If the position prior or the environmental information is available, the beams can be learned for each partitioned area to reduce IA delay [192], [199]. For these strategies, exhaustive search provides the best coverage and hardware feasibility, but the discovery delay grows linearly with beamforming gain [200], [201].…”

Section: Offline Optimizationmentioning

confidence: 99%

A Tutorial on Terahertz-Band Localization for 6G Communication Systems

Chen¹,

Sarieddeen²,

Ballal³

et al. 2021

Preprint

View full text Add to dashboard Cite

Terahertz (THz) communications are celebrated as key enablers for converged localization and sensing in future sixth-generation (6G) wireless communication systems and beyond. Instead of being a byproduct of the communication system, localization in 6G is indispensable for location-aware communications. Towards this end, we aim to identify the prospects, challenges, and requirements of THz localization techniques. We first review the history and trends of localization methods and discuss their objectives, constraints, and applications in contemporary communication systems. We then detail the latest advances in THz communications and introduce the THzspecific channel and system models. Afterward, we formulate THz-band localization as a 3D position/orientation estimation problem, detailing geometry-based localization techniques and describing potential THz localization and sensing extensions. We further formulate the offline design and online optimization of THz localization systems, provide numerical simulation results, and conclude by providing insight into interdisciplinary future research directions. Preliminary results illustrate that under the same total transmission power and time, THz-based localization is ∼5 (∼20) times more accurate than mmWave-based localization without (with) prior position information.

show abstract

“…M ANY different types of wireless communication networks have been developed and deployed in the recent history. Examples of these networks include cellular [1], [2], sensor [3], [4], Internet of things (IoT) [5], [6] and wireless local area networks (WLAN) [7], [8]. An increased use of these wireless networks has resulted in a very high utilization of the wireless frequency resources.…”

Section: Introductionmentioning

confidence: 99%

Interference Avoidance in Cognitive Radio Networks Using Cooperative Localization

Farooq-i-Azam

Dong

et al. 2022

IEEE Systems Journal

View full text Add to dashboard Cite

In the recent years, there has been a tremendous increase in the use of wireless medium and radio frequency spectrum due to the development of new types of wireless networks, applications and enabling technologies. Consequently, the radio frequency spectrum is getting over crowded due to this increasing demand. Traditionally, frequency bands are allocated to licensed users for their specific use. Cognitive radio allows secondary users to communicate using these frequency bands. However, this may result in interference to the primary users. Information of the relative positions of the primary and secondary users and the distance between them can be exploited to avoid this interference. In our work, we use cooperative localization strategy to determine the distance between the secondary and primary users. This distance information is then utilized to adjust the transmission power of the secondary nodes so that the interference threshold of the primary users is not exceeded. The proposed methodology is evaluated using simulation experiments. Different aspects of the proposed algorithm including location and distance estimation, channel availability and channel capacity against transmission power and path loss are evaluated. The results show that the proposed scheme is able to achieve considerable gains as a consequence of interference avoidance.

show abstract

Position-Aided Beam Learning for Initial Access in mmWave MIMO Cellular Networks

Cited by 7 publications

References 30 publications

A Tutorial on Terahertz-Band Localization for 6G Communication Systems

A Tutorial on Terahertz-Band Localization for 6G Communication Systems

A Tutorial on Terahertz-Band Localization for 6G Communication Systems

Interference Avoidance in Cognitive Radio Networks Using Cooperative Localization

Contact Info

Product

Resources

About