Name
Abstract | ||
|---|---|---|
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 short timescales and is mainly affected by the transport layer data rate. Furthermore, we empirically demonstrate the impact of the wireless scheduler on various TCP parameters such as the round trip time, throughput and packet loss rate. |
Year | Venue | Keywords |
|---|---|---|
2007 | PAM | transport layer data rate,cross-layer measurement study,transport layer,various tcp parameter,adaptive transport layer protocol,tcp behavior,lower layer dynamic,mac layer parameter,cdma2000 network,active tcp,wireless scheduler,tcp dynamic,round trip time,technical report,power control |
Field | DocType | Volume |
H-TCP,TCP Westwood plus,CUBIC TCP,Computer science,Computer network,Real-time computing,TCP acceleration,TCP pacing,TCP tuning,TCP Friendly Rate Control,TCP global synchronization | Conference | 4427 |
ISSN | Citations | PageRank |
0302-9743 | 18 | 3.50 |
References | Authors | |
13 | 5 | |
Name | Order | Citations | PageRank |
|---|---|---|---|
| Karim Mattar | 1 | 64 | 7.80 |
| Ashwin Sridharan | 2 | 724 | 55.79 |
| Hui Zang | 3 | 1052 | 77.25 |
| Ibrahim Matta | 4 | 2077 | 350.68 |
| Azer Bestavros | 5 | 3791 | 764.82 |