Game-Theoretic EDCA in IEEE 802.11e WLANs

Author

Zhao, Liqiang ; Cong, Li ; Zhang, Hailin ; Ding, Wei ; Zhang, Jie

Author_Institution

State Key Lab. of Integrated Services Networks, Xidian Univ., Xi´´an

fYear

2008

fDate

21-24 Sept. 2008

Firstpage

1

Lastpage

5

Abstract

In IEEE 802.11 WLANs, the fundamental MAC mechanism - DCF, only supports best-effort service, and is unaware of QoS. IEEE 802.11e EDCA supports service differentiation by differentiating contention parameters. This may introduce the problem of selfish traffics with rational nodes. Hence, game-theoretic EDCA (G-EDCA) is proposed in this paper to solve the problem. Moreover, a simple and run-time estimation mechanism is presented to implement G-EDCA in current WLANs. Extensive simulations are also carried out to compare the performances of DCF, EDCA and G-EDCA. The simulation results show that G-EDCA performs better than DCF and EDCA in terms of system throughput and QoS.

Keywords

access protocols; game theory; multi-access systems; quality of service; wireless LAN; IEEE 802.11e WLAN; MAC mechanism; QoS; distributed coordination function; enhanced distributed channel access; game-theoretic EDCA; medium access control; run-time estimation mechanism; Access protocols; Delay; Game theory; Media Access Protocol; Multiaccess communication; Runtime; Telecommunication traffic; Throughput; Traffic control; Wireless LAN;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference, 2008. VTC 2008-Fall. IEEE 68th

Conference_Location

Calgary, BC

ISSN

1090-3038

Print_ISBN

978-1-4244-1721-6

Electronic_ISBN

1090-3038

Type

conf

DOI

10.1109/VETECF.2008.428

Filename

4657260