Strategically Positioning On-Board PEPs in LEO-based NTN for TCP Throughput Improvement

Kyeongnam Park, Kyungha Kim, Hyungjoon Shin, Hojeong Lee, Hyogon Kim

Research output: Chapter in Book/Report/Conference proceedingConference contribution


Non-terrestrial network (NTN) is a technology that enables mobile devices such as smartphones to directly communicate with Low Earth Orbit (LEO) satellites and access Internet services from anywhere on the globe. Although initial commercial releases offer only limited bandwidth, the technology is expected to rapidly expand its capacity with "mega-constellations."In this paper, we explore novel configuration options of the NTN architecture that will help boost the TCP throughput performance of an NTN user. We first demonstrate that traditional performance-enhancing proxies (PEPs) deployed on only terrestrial gateways do not have an overwhelming merit over end-to-end TCP Hybla. However, we show that an on-board PEP strategically deployed on satellites can achieve superior performance than both TCP Hybla and the PEP on the terrestrial gateway.

Original languageEnglish
Title of host publication2023 IEEE 98th Vehicular Technology Conference, VTC 2023-Fall - Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9798350329285
Publication statusPublished - 2023
Event98th IEEE Vehicular Technology Conference, VTC 2023-Fall - Hong Kong, China
Duration: 2023 Oct 102023 Oct 13

Publication series

NameIEEE Vehicular Technology Conference
ISSN (Print)1550-2252


Conference98th IEEE Vehicular Technology Conference, VTC 2023-Fall
CityHong Kong

Bibliographical note

Publisher Copyright:
© 2023 IEEE.


  • Non-terrestrial network (NTN)
  • TCP
  • on-board proxy
  • performance-enhancing proxy (PEP)
  • throughput

ASJC Scopus subject areas

  • Computer Science Applications
  • Electrical and Electronic Engineering
  • Applied Mathematics


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