A Performance Comparison of TCP Protocols over Mobile Ad Hoc Wireless Networks

Author

Berger, Michelle ; Lima, Servio ; Manoussakis, Alexandros ; Pulgarin, Juan ; Sanchez, Benicio

Author_Institution

Carnegie Mellon Univ., Pittsburgh, PA

Volume

2

fYear

2006

fDate

Sept. 2006

Firstpage

88

Lastpage

94

Abstract

The performance of wireless ad hoc networks is impacted significantly by the way TCP reacts to lost packets. TCP was designed specifically for wired, reliable networks; thus, any packet loss is attributed to congestion in the network. This assumption does not hold in wireless networks as most packet loss is due to link failure. In our research we analyzed several implementations of TCP, including TCP Vegas, TCP with ELFN, and SACK TCP, by measuring throughput, retransmissions, and duplicate acknowledgements through simulation with ns-2. We discovered that TCP throughput is related to the number of hops in the path, and thus depends on the performance of the underlying routing protocol, which was DSR in our research

Keywords

ad hoc networks; mobile radio; performance evaluation; routing protocols; transport protocols; SACK TCP; TCP Vegas; TCP protocols; TCP throughput; mobile ad hoc wireless network performance; routing protocol; Clocks; Computational modeling; Computer networks; Mobile ad hoc networks; Mobile computing; Performance analysis; Routing protocols; Throughput; Wireless application protocol; Wireless networks;

fLanguage

English

Publisher

ieee

Conference_Titel

Electronics, Robotics and Automotive Mechanics Conference, 2006

Conference_Location

Cuernavaca

Print_ISBN

0-7695-2569-5

Type

conf

DOI

10.1109/CERMA.2006.9

Filename

4019776