TCP Hybla: a TCP enhancement for heterogeneous networks
Abstract
In heterogeneous networks, TCP connections that incorporate a terrestrial or satellite radio link are greatly disadvantaged with respect to entirely wired connections, because of their longer round trip times (RTTs). To cope with this problem, a new TCP proposal, the TCP Hybla, is presented and discussed in the paper. It stems from an analytical evaluation of the congestion window dynamics in the TCP standard versions (Tahoe, Reno, NewReno), which suggests the necessary modifications to remove the performance dependence on RTT. TCP Hybla performance is firstly evaluated in the case of an ideal channel, with good correlation between analytical and simulation data. Then, more realistic situations, which require the adoption of a benchmark network topology and a careful ns‐2 simulation set‐up, are examined. In particular, TCP Hybla performance is compared with that achievable by TCP standard in the presence of congestion and link losses, either separately or jointly considered. In all the examined cases, the superiority of TCP Hybla is evident, as it greatly reduces the severe penalization suffered by wireless, and especially satellite, TCP connections. Finally, it is worth noting that TCP Hybla does not infringe the end to end semantics of TCP and is compatible with other promising enhancements. Copyright © 2004 John Wiley & Sons, Ltd.
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Results demonstrate that PCC outperforms standard TCP and other variants specially designed for particular networks, such as TCP-Hybla for satellite networks and TCP-SABUL for inter-data center networks.
“The results demonstrate that PCC outperforms standard TCP and other variants specially designed for particular networks, such as TCP-Hybla [83] for satellite networks and TCP-SABUL [172] for inter-data center networks.”
From A comprehensive survey on machine learning for networking: Evolution, applications and research opportunities (2018) · cites this paper as [83]
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CUBIC: a new TCP-friendly high-speed TCP variant
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- Authors
- Caini, C., & Firrincieli, R.
- Affiliations
- University of Bologna (IT)
- Corresponding author
- Caini, Carlo
- ORCID
- Caini, Carlo
- Venue
- International Journal of Satellite Communications and Networking
- Publisher
- Wiley
- Published
- 2004-08-31
- Volume
- 22
- Issue
- 5
- Pages
- 547-566
- ISSN
- 1542-0973 (ISSN-L)
- 1542-0981
- OpenAlex
- W2151594619
- Cited by
- 409
- References
- 29
- Citations by year
- 2026: 12 · 2025: 10 · 2024: 14 · 2023: 18 · 2022: 12 · 2021: 23 · 2020: 15 · 2019: 24 · 2018: 28 · 2017: 26 · 2016: 21 · 2015: 23 · 2014: 25 · 2013: 20 · 2012: 27
- FWCI
- 14.18
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- International Journal of Satellite Communications and Networking (publishedVersion)
- Archivio istituzionale della ricerca (Alma Mater Studiorum Università di Bologna) (submittedVersion)
- Topics
- Physical Sciences › Computer Science › Computer Networks and Communications › Network Traffic and Congestion Control
- Physical Sciences › Computer Science › Computer Networks and Communications › Wireless Networks and Protocols
- Physical Sciences › Computer Science › Computer Networks and Communications › Opportunistic and Delay-Tolerant Networks
- Keywords
- TCP congestion control, heterogeneous networks, satellite links, wireless TCP, round-trip time, TCP Reno, TCP Tahoe, TCP NewReno, link loss
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