Mo3: A Modular Mobility Model for Future Generation Mobile Wireless Networks

doi:10.1109/ACCESS.2022.3161541

2022-01-01

Luca De Nardis *

Maria‐Gabriella Di Benedetto

DOI：10.1109/ACCESS.2022.3161541

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摘要

En 中文

Mobility modeling in 5G and beyond 5G must address typical features such as time-varying correlation between mobility patterns of different nodes, and their variation ranging from macro-mobility (kilometer range) to micro-mobility (sub-meter range). Current models have strong limitations in doing so: the widely used reference-based models, such as the Reference Point Group Mobility (RPGM), lack flexibility and accuracy, while the more sophisticated rule-based (i.e. behavioral) models are complex to set-up and tune. This paper introduces a new rule-based Modular Mobility Model, named Mo-3, that provides accuracy and flexibility on par with behavioral models, while preserving the intuitiveness of the reference-based approach, and is based on five rules: 1) Individual Mobility, 2) Correlated Mobility, 3) Collision Avoidance, 4) Obstacle Avoidance and 5) Upper Bounds Enforcement. Mo-3 avoids introducing acceleration vectors to define rules, as behavioral models do, and this significantly reduces complexity. Rules are mapped one-to-one onto five modules, that can be independently enabled or replaced. Comparison of time-correlation features obtained with Mo-3 vs. reference-based models, and in particular RPGM, in pure micro-mobility and mixed macro-mobility / micro-mobility scenarios, shows that Mo-3 and RPGM generate mobility patterns with similar topological properties (intra-group and inter-group distances), but that Mo-3 preserves a spatial correlation that is lost in RPGM - at no price in terms of complexity - making it suitable for adoption in 5G and beyond 5G.

Keyword:

5G mobile communication

Collision avoidance

Wireless communication

Wireless networks

Meters

Trajectory

Physical layer

Beyond 5G networks

group mobility modeling

mobile wireless networks simulation