Kavli Affiliate: Feng Wang
| First 5 Authors: Feng Wang, Giovanni Geraci, Lingxiang Li, Peng Wang, Tony Q. S. Quek
| Summary:
Non-terrestrial networks (NTN) have emerged as a transformative solution to
bridge the digital divide and deliver essential services to remote and
underserved areas. In this context, low Earth orbit (LEO) satellite
constellations offer remarkable potential for efficient cache content broadcast
in remote regions, thereby extending the reach of digital services. In this
paper, we introduce a novel approach to optimize wireless edge content
placement using NTN. Despite wide coverage, the varying NTN transmission
capabilities must be carefully aligned with each content placement to maximize
broadcast efficiency. In this paper, we introduce a novel approach to optimize
wireless edge content placement using NTN, positioning NTN as a complement to
TN for achieving optimal content broadcasting. Specifically, we dynamically
select content for placement via NTN links. This selection is based on
popularity and suitability for delivery through NTN, while considering the
orbital motion of LEO satellites. Our system-level case studies, based on a
practical LEO constellation, demonstrate the significant improvement in
placement speed compared to existing methods, which neglect network mobility.
We also demonstrate that NTN links significantly outperform standalone wireless
TN solutions, particularly in the early stages of content delivery. This
advantage is amplified when there is a higher correlation of content popularity
across geographical regions.
| Search Query: ArXiv Query: search_query=au:”Feng Wang”&id_list=&start=0&max_results=3