Performance Issues in Asymmetric TCP Service Provision using Broadband Satellite

Godred Fairhurst, N. K. G. Samaraweera, H. Sooriyabandara, H. Harun, K. Hodson, R. Donardio

Research output: Contribution to journalArticlepeer-review

14 Citations (Scopus)


The next generation of broadband satellites will offer high-capacity digital services to provide high-speed Internet access at low cost, using the terrestrial dial-up infrastructure to provide a return path. The resulting service exhibits significant bandwidth asymmetry and when TCP is used a phenomenon termed 'ACK congestion' is observed. TCP behaviour in an asymmetric network using simulations and both live and emulated test bed experiments is studied. A set of existing techniques to restore performance are analysed and a new technique called 'ACK compaction' is presented and analysed. Although the study focuses on one technology most discussions will be common to any bandwidth-asymmetric network.

Original languageEnglish
Pages (from-to)95-99
Number of pages4
JournalIEE Proceedings (Communications)
Issue number2
Publication statusPublished - Apr 2001


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