A Scheduling Algorithm for Improving Fairness between Uplink TCP Flows

Author

Li, Xueyong ; Huang, Jiawei ; Wang, Jianxin ; Ye, Jin

Author_Institution

Sch. of Inf. Sci. & Eng., Central South Univ., Changsha, China

fYear

2009

fDate

24-26 Sept. 2009

Firstpage

1

Lastpage

4

Abstract

Significant TCP unfairness in wireless local networks has been reported during the past several years. This unfairness results from the greedy TCP protocol and shared wireless medium. To solve the unfairness problem between uplink TCP flows, we proposed a scheduling algorithm called uplink weighted fair queueing (UWFQ). By adjusting the service weight of ACK packets, UWFQ achieves the channel adaptive fairness between uplink TCP flows. Analysis and simulation results show that UWFQ not only improves the fairness greatly, but also achieves higher total network throughput.

Keywords

greedy algorithms; queueing theory; radio links; scheduling; telecommunication traffic; transport protocols; wireless LAN; wireless channels; ACK packet; IEEE 802.11; TCP unfairness; UWFQ algorithm; WLAN; channel adaptive fairness improvement; greedy TCP protocol; network throughput; scheduling algorithm; shared wireless medium; uplink TCP flow; uplink weighted fair queueing algorithm; wireless local area network; Computer networks; Information science; Mathematics; Scheduling algorithm; Switches; TV; Throughput; Wireless LAN; Wireless application protocol; Wireless networks;

fLanguage

English

Publisher

ieee

Conference_Titel

Wireless Communications, Networking and Mobile Computing, 2009. WiCom '09. 5th International Conference on

Conference_Location

Beijing

Print_ISBN

978-1-4244-3692-7

Electronic_ISBN

978-1-4244-3693-4

Type

conf

DOI

10.1109/WICOM.2009.5302767

Filename

5302767