4 citations · 10 across the 12 of their papers we have counts for
14 papers
On the Lack of Periodicity of Walker Satellite Constellation Routing Tables
Chang-Sik Choi, François Baccelli
In a referential that rotates with Earth, the dynamics of the configurations of satellites in a Delta Walker constellation can be analyzed as a dynamical system as a function of a…
Dynamical System Characterization of Heterogeneous Walker Satellite Networks: An Orbit-Aware Stochastic Geometry Perspective
Chang-Sik Choi, Francois Baccelli
Heterogeneous and in particular multi-altitude low Earth orbit (LEO) satellite constellations exhibit complex spatial and temporal structures, which require new modeling tools for…
Stochastic Geometry and Dynamical System Analysis of Walker Satellite Constellations
Chang-Sik Choi, Francois Baccelli
In practice, low Earth orbit (LEO) and medium Earth orbit (MEO) satellite networks consist of multiple orbits which are populated with many satellites. A widely used spatial archit…
Cox Point Processes for Multi Altitude LEO Satellite Networks
Chang-Sik Choi, François Baccelli
To model existing or future low Earth orbit (LEO) satellite networks leveraging multiple constellations, we propose a simple analytical approach to represent the clustering of sate…
A Novel Analytical Model for LEO and MEO Satellite Networks based on Cox Point Processes
Chang-Sik Choi, François Baccelli
This work develops an analytical framework for downlink low Earth orbit (LEO) or medium Earth orbit (MEO) satellite communications, leveraging tools from stochastic geometry. We pr…
Analysis of a Spatially Correlated Vehicular Network Assisted by Cox-distributed Vehicle Relays
Chang-Sik Choi, François Baccelli
In vehicle-to-all (V2X) communications, roadside units (RSUs) play an essential role in connecting various network devices. In some cases, users may not be well-served by RSUs due…
LOS Coverage Area in Vehicular Networks with Cox distributed Roadside Units and Relays
Chang-Sik Choi, François Baccelli
We develop an analytical framework to examine the line-of-sight (LOS) coverage area in vehicular networks with roadside units (RSU) and vehicle relays. In practical deployment scen…
A Random Geometric Model of Blockages in Vehicular Networks
Chang-Sik Choi, François Baccelli
This paper presents a novel spatially consistent approach for modeling line-of-sight (LOS) paths in vehicular networks. We use stochastic geometry to model transmitters, obstacles,…
Analysis of Vehicular Safety Messaging in Cellular Networks
Chang-sik Choi, Francois Baccelli
This paper concerns the performance of vehicle-to-everything (V2X) communications. More precisely, we analyze the broadcast of safety-related V2X communications in cellular network…
Modeling and Analysis of Data Harvesting Architecture based on Unmanned Aerial Vehicles
Chang-sik Choi, Francois Baccelli, Gustavo de Veciana
This paper explores an emerging wireless Internet-of-things (IoT) architecture based on unmanned aerial vehicles (UAVs). We consider a network where a fleet of UAVs at a fixed alti…
Spatial and Temporal Analysis of Direct Communications from Static Devices to Mobile Vehicles
Chang-sik Choi, François Baccelli
This paper proposes a framework to analyze an emerging wireless architecture where vehicles collect data from devices. Using stochastic geometry, the devices are modeled by a plana…
Poisson Cox Point Processes for Vehicular Networks
Chang-Sik Choi, François Baccelli
This paper analyzes statistical properties of the Poisson line Cox point process useful in the modeling of vehicular networks. The point process is created by a two-stage construct…
An Analytical Framework for Coverage in Cellular Networks Leveraging Vehicles
Chang-Sik Choi, François Baccelli
This paper analyzes an emerging architecture of cellular network utilizing both planar base stations uniformly distributed in Euclidean plane and base stations located on roads. An…
An Analytical Framework for Modeling a Spatially Repulsive Cellular Network
Chang-Sik Choi, Jae Oh Woo, Jeffrey G. Andrews
We propose a new cellular network model that captures both deterministic and random aspects of base station deployments. Namely, the base station locations are modeled as the super…