New Cross-Layer Channel Switching Policy for TCP Transmission on 3G UMTS Downlink
| dc.creator | Kumar, Dinesh | |
| dc.creator | Barman, Dhiman | |
| dc.creator | Altman, Eitan | |
| dc.creator | Kelif, Jean-Marc | |
| dc.date | 2006-08-04 | |
| dc.date.accessioned | 2026-07-07T07:19:57Z | |
| dc.date.available | 2026-07-07T07:19:57Z | |
| dc.description | In 3G UMTS, two main transport channels have been provided for downlink data transmission: a common FACH channel and a dedicated DCH channel. The performance of TCP in UMTS depends much on the channel switching policy used. In this paper, we propose and analyze three new basic threshold-based channel switching policies for UMTS that we name as QS (Queue Size), FS (Flow Size) and QSFS (QS & FS combined) policy. These policies significantly improve over a modified threshold policy in [1] by about 17% in response time metrics. We further propose and evaluate a new improved switching policy that we call FS-DCH (at-least flow-size threshold on DCH) policy. This policy is biased towards short TCP flows of few packets and is thus a cross-layer policy that improves the performance of TCP by giving priority to the initial few packets of a flow on the fast DCH channel. Extensive simulation results confirm this improvement for the case when number of TCP connections is low. | |
| dc.identifier | https://arxiv.org/abs/cs/0608026 | |
| dc.identifier | http://arxiv.org/abs/cs/0608026 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/114820 | |
| dc.subject | Networking and Internet Architecture | |
| dc.title | New Cross-Layer Channel Switching Policy for TCP Transmission on 3G UMTS Downlink | |
| dc.type | text |