Journal
IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY
Volume 71, Issue 12, Pages 12765-12781Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TVT.2022.3195607
Keywords
5G; 6G; blockage; micromobility; millimeter wave; multi-connectivity; outage; terahertz; user associations
Ask authors/readers for more resources
This paper analyzes and compares user association schemes and multi-connectivity strategies for joint 6G THz/mmWave deployments, and develops a unified analytically tractable framework. The results show the impact of blockage phenomenon and the benefits of THz/mmWave multi-connectivity.
Terahertz (THz) wireless access is considered as a next step towards 6G cellular systems. By utilizing even higher frequency bands than 5G millimeter wave (mmWave) New Radio (NR), they will operate over extreme bandwidth delivering unprecedented rates at the access interface. However, by relying upon pencil-wide beams, these systems will not only inherit mmWave propagation challenges such as blockage phenomenon but introduce their own issues associated with micromobility of user equipment (UE). In this paper, we analyze and compare user association schemes and multi-connectivity strategies for joint 6G THz/mmWave deployments. Differently, from stochastic geometry studies, we develop a unified analytically tractable framework that simultaneously accounts for specifics of THz and mmWave radio part design and traffic service specifics at mmWave and THz base stations (BS). Our results show that (i) for negligible blockers density, lambda(B) <= 0.1 bl./m(2), the operator needs to enlarge the coverage of THz BS by accepting sessions that experience outage in case of blockage (ii) for lambda(B) > 0.1 bl./m(2), only those sessions that does not experience outage in case of blockage need to be accepted at THz BS, (iii) THz/mmWave multi-connectivity improves the ongoing session loss probability by 0.1-0.4 depending on the system parameters.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available