Performance evaluations of PRR-CFDAMA for TCP traffic over geosynchronous satellite links

TitlePerformance evaluations of PRR-CFDAMA for TCP traffic over geosynchronous satellite links
Publication TypeConference Paper
Year of Publication2002
AuthorsLi, Y., Z. Jiang, and V. C. M. Leung
Conference NameWireless Communications and Networking Conference, 2002. WCNC2002. 2002 IEEE
Pagination844 - 848 vol.2
Date Publishedmar.
Keywordsaccess protocols, combined free/demand assignment multiple access, delay, delays, demand assigned multiple access, digital simulation, frequency division multiple access, FTP over TCP, geosynchronous satellite links, Internet, Internet traffic, media access control, MFTDMA/TDM satellite link, performance evaluation, Poisson traffic, prereturn reservation protocol, PRR-CFDAMA, PRR-CFDAMA protocol, satellite links, satellite MAC protocol, satellite-based Internet access, simulation results, stochastic processes, system performance, system throughput, TCP parameters tuning, TCP traffic, telecommunication traffic, time division multiple access, transmission control protocol, transport protocols

In satellite-based Internet access, improvements in the TCP protocol and a suitable media access control (MAC) scheme are two key factors in maximizing system throughput. While a number of techniques to enhance the TCP performance over satellite links have been proposed, this paper focuses on the influence of satellite MAC protocol on TCP performance. We present a pre-return reservation combined free/demand assignment multiple access (PRR-CFDAMA) protocol over an MFTDMA/TDM satellite link, and analyze its performance with Poisson and empirical Internet traffic by simulations. The results show that PRR-CFDAMA can provide higher throughput and shorter delay for TCP traffic. We also present simulation results for FTP over TCP and show that by tuning the TCP parameters, we can improve the system performance noticeably.


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