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Authors: Juan J. Alcaraz and Fernando Cerdán

Affiliation: Polytechnic University of Cartagena, Spain

Keyword(s): TCP over 3G, Radio Link Control (RLC).

Related Ontology Subjects/Areas/Topics: GPRS and UMTS ; Mobile Software and Services ; Multimedia and QoS over Wireless Networks ; Telecommunications ; Ubiquitous Wireless Services and Protocols ; Wireless and Mobile Technologies ; Wireless Information Networks and Systems

Abstract: When TCP is carried over 3G links, overbuffering and buffer overflow at the RLC layer degrades its performance. In order to prevent these undesired cross-layer interactions, we propose an algorithm to control the rate of the acknowledgements (ACK) traversing the RLC entity at the network side. Since the sending rate of a TCP source is determined by the arrival rate of the ACKs, the basic idea of this scheme is to adjust the inder-departure time of the ACKs in the uplink direction, according to the congestion level of the downlink buffer. By means of extensive simulation experiments, we disclose the influence of each parameter on TCP performance. We provide several configurations that improve end-to-end goodput while reducing the delay. The operation of the algorithm is deterministic; it does not require changes in 3G specifications nor in TCP itself, and preserves TCP end-to-end semantics.

CC BY-NC-ND 4.0

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Paper citation in several formats:
J. Alcaraz, J. and Cerdán, F. (2006). ACK RATE CONTROL STRATEGY AT THE LINK LAYER TO ENHANCE TCP OVER 3G LINKS. In Proceedings of the International Conference on Wireless Information Networks and Systems (ICETE 2006) - WINSYS; ISBN 978-972-8865-65-8, SciTePress, pages 34-42. DOI: 10.5220/0002090000340042

@conference{winsys06,
author={Juan {J. Alcaraz}. and Fernando Cerdán.},
title={ACK RATE CONTROL STRATEGY AT THE LINK LAYER TO ENHANCE TCP OVER 3G LINKS},
booktitle={Proceedings of the International Conference on Wireless Information Networks and Systems (ICETE 2006) - WINSYS},
year={2006},
pages={34-42},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0002090000340042},
isbn={978-972-8865-65-8},
}

TY - CONF

JO - Proceedings of the International Conference on Wireless Information Networks and Systems (ICETE 2006) - WINSYS
TI - ACK RATE CONTROL STRATEGY AT THE LINK LAYER TO ENHANCE TCP OVER 3G LINKS
SN - 978-972-8865-65-8
AU - J. Alcaraz, J.
AU - Cerdán, F.
PY - 2006
SP - 34
EP - 42
DO - 10.5220/0002090000340042
PB - SciTePress