TCP/IP analysis and optimization over a precommercial live UMTS network

[dietcha]

3G wireless networks such as UMTS are currently providing wide area Internet access. However, the Internet protocols exhibit a suboptimal performance in such scenarios. In this paper we first characterize a live UMTS link from the IP level. We identify critical features such as high latency, delay spikes, high packet loss probability and connectivity gaps, specially when the user moves between cells. Next, we test a set of TCP configurations, demonstrating that TCP performance can be optimized over UMTS by the usage of adequate end-to-end mechanisms and parameter values.

[cnvseshu]

Hi i am new to this group ,could you pls mail it to cnv.seshu@gmail.com.thanks in advance

[dimooon11]

The same suboptimal performance we have expirienced in EVDO networks due to default TCP/IP settings

[zefs]

Please upload to 4shared as I do not have enough reputation.

Thank you.