Analyzing and improving the TCP flow fairness in 802.11 based ad hoc networks

Author

Ling, Yang ; Xiao-fan, Zhang ; Yu-shan, Liu

Author_Institution

Sch. of Inf. Sci. & Eng., Lanzhou Univ., Lanzhou, China

fYear

2009

fDate

13-15 Nov. 2009

Firstpage

1

Lastpage

5

Abstract

The TCP flow fairness problem in 802.11 based multihop ad hoc networks was studied in this paper. Firstly, a probability model was established to describe the TCP flow fairness, and its rationality was verified by simulation; Then, a new MAC layer scheme with low overhead cost was proposed, in which the backoff window at MAC layer was controlled by detecting the basic factors that lead to the TCP flow unfairness, and so the TCP flow fairness was improved. The proposed algorithm was simply and easy to implement, simulation results show that it can eliminate the TCP flow monopoly phenomenon, improve the TCP flow fairness validly and without significantly impairing aggregate throughput in multihop ad hoc networks.

Keywords

access protocols; ad hoc networks; transport protocols; wireless LAN; 802.11-based multihop ad hoc networks; MAC layer scheme; TCP flow fairness; probability model; wireless local area networks; Ad hoc networks; Aggregates; Costs; Information analysis; Information science; Media Access Protocol; Monopoly; Quantization; Spread spectrum communication; Throughput; Ad Hoc networks; IEEE 802.11 DCF; Probability model; TCP flow fairness;

fLanguage

English

Publisher

ieee

Conference_Titel

Wireless Communications & Signal Processing, 2009. WCSP 2009. International Conference on

Conference_Location

Nanjing

Print_ISBN

978-1-4244-4856-2

Electronic_ISBN

978-1-4244-5668-0

Type

conf

DOI

10.1109/WCSP.2009.5371583

Filename

5371583