TCP performance over geostationary satellite links: problems and solutions

Geostationary satellite links exhibit a number of characteristics that can severely impact the performance of TCP. Over the years, a lot of research has been performed to identify the causes of these performance related problems. Multiple techniques that can reduce the affects of the problems have been identified, however a solution to the overall problem does not appear to currently exist. This paper details work in progress to continue research in this field. We start by providing a brief background on geostationary satellite links and TCP, before discussing each of the main factors that impact TCP performance. Previous research is discussed and the findings summarised. Finally, a number of possible solutions are presented.