Wireless TCP performance with link layer FEC/ARQ

Author

Chockalingam, A. ; Zorzi, Michele ; Tralli, Velio

Author_Institution

Dept. of Electr. Commun. Eng., Indian Inst. of Sci., Bangalore, India

Volume

2

fYear

1999

fDate

1999

Firstpage

1212

Abstract

We investigate the performance of TCP Tahoe and NewReno on wireless links with a FEC/ARQ protocol at the link layer. The effect of link layer (LL) parameters like the LL packet size, number of LL transmission attempts, and FEC code rate on the TCP throughput is evaluated. It is shown that the retransmissions at the link layer must persist long enough to outlast the average bad state duration of the Rayleigh fading process in order to achieve performance better than TCP without an ARQ at the link layer. It is further shown that with a suitable link layer in place, TCP Tahoe offers as high a throughput as offered by other enhanced versions like NewReno in the considered wireless environment

Keywords

Rayleigh channels; automatic repeat request; error correction codes; forward error correction; packet radio networks; radio links; transport protocols; FEC code rate; FEC/ARQ protocol; NewReno; Rayleigh fading; TCP Tahoe; TCP throughput; link layer FEC/ARQ; link layer parameters; link layer retransmission; packet size; packet transmission; transmission attempts; wireless TCP performance; wireless data applications; wireless links; Automatic repeat request; Electronic mail; Error analysis; Fading; Forward error correction; Rayleigh channels; TCPIP; Throughput; Transport protocols; Wireless application protocol;

fLanguage

English

Publisher

ieee

Conference_Titel

Communications, 1999. ICC '99. 1999 IEEE International Conference on

Conference_Location

Vancouver, BC

Print_ISBN

0-7803-5284-X

Type

conf

DOI

10.1109/ICC.1999.765503

Filename

765503