A new proposal of TCP for IEEE 802.11 wireless networks

Authors:
Fábio C. M. Araújo;Cláudia J. Barenco Abbas;L. Javier García Villalba
Affiliations:
Electrical Engineering Department, Faculty of Technology, University of Brasilia – UnB, Brasília, Brazil;Departamento de Computación y Tecnología de la Información, Universidad Simón Bolívar – USB, Caracas, Venezuela;Grupo de Análisis, Seguridad y Sistemas (GASS), Departamento de Sistemas Informáticos y Programación (DSIP), Facultad de Informática, Despacho 431, Universidad Complutense de M ...
Venue:
HPCC'06 Proceedings of the Second international conference on High Performance Computing and Communications
Year:
2006

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Abstract

The TCP was designed to work in an environment that is almost link error free. So it supposes that any error during receiving data is due to congestion. This assumption is not always true, especially in a wireless environment, which has a high BER when compared to other medium like fiber and twisted pair. This work describes a simple and backward compatible way to increase the performance of TCP in wireless links. This solution is evaluated in a simulated environment using the NS2 simulator and is based in informing the TCP whenever the link is under high BER, so it can trigger the proposed algorithm that will hold the transmission and save the congestion window status for late recovery from the disconnection.