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2007
Springer

TCP over CDMA2000 Networks: A Cross-Layer Measurement Study

10 years 8 months ago
TCP over CDMA2000 Networks: A Cross-Layer Measurement Study
Modern cellular channels in 3G networks incorporate sophisticated power control and dynamic rate adaptation which can have a significant impact on adaptive transport layer protocols, such as TCP. Though there exists studies that have evaluated the performance of TCP over such networks, they are based solely on observations at the transport layer and hence have no visibility into the impact of lower layer dynamics, which are a key characteristic of these networks. In this work, we present a detailed characterization of TCP behavior based on cross-layer measurement of transport, as well as RF and MAC layer parameters. In particular, through a series of active TCP/UDP experiments and measurement of the relevant variables at all three layers, we characterize both, the wireless scheduler in a commercial CDMA2000 network and its impact on TCP dynamics. Somewhat surprisingly, our findings indicate that the wireless scheduler is mostly insensitive to channel quality and sector load over shor...
Karim Mattar, Ashwin Sridharan, Hui Zang, Ibrahim
Added 09 Jun 2010
Updated 09 Jun 2010
Type Conference
Year 2007
Where PAM
Authors Karim Mattar, Ashwin Sridharan, Hui Zang, Ibrahim Matta, Azer Bestavros
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