Bestak, Robert (2003) Reliability mechanismes (ARQ protocols) and their adaptation in 3G networks. PhD thesis, ENST - INFRES Informatique et Réseaux, ENST.
Abstract
The UMTS 3G system (3rd generation cellular system) is designed to offer a packet switched mode for data transfers in parallel to a circuit switched mode. This feature was planned since the beginning of 3G studies, contrary to 2G ones (such as the GSM system). To provide reliable data transfers, protocols implementing ARQ (Automatic Repeat reQuest) mechanisms are needed. We study ARQ protocols that can simultaneously be activated at different levels of the global UMTS protocol architecture: RLC (Radio Link Control), TCP (Transmission Control Protocol) and MAC-hs (Medium Access Control-high speed). A study of new features of the UMTS ARQ mechanisms as well as possibilities of their enrichments is studied. The stacking of ARQ mechanisms represents a risk of interactions between them. We analyze some of these interactions
| Item Type: | PhD Thesis (PhD) |
|---|
| Thesis Supervisor: | Godlewski, Philippe |
|---|
| Date: | December 2003 |
|---|
| Board of examiners: | Lagrange, Xavier and Al Agha, Khaldoun and Toutain, Laurent and Martins, Philippe and Simak, Boris and Brouet, Jérôme |
|---|
| Collection (Fonds): | ENST |
|---|
| Institution: | ENST |
|---|
| Department: | ENST - INFRES Informatique et Réseaux |
|---|
| Subjects: | 2. Information and Communication Sciences and Technologies |
|---|
| Uncontrolled Keywords: | Umts, protocoles ARQ, Hsdpa |
|---|
| ID Code: | 514 |
|---|
| Deposited By: | Robert Bestak |
|---|
| Deposited On: | 17 February 2004 |
|---|
Statistiques de consultation
Repository Staff Only: edit this item
