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A Contention Window Adjustment Algorithm for Improving Fairness between Uplink and Downlink in IEEE 802.11 WLANs
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 Title & Authors
A Contention Window Adjustment Algorithm for Improving Fairness between Uplink and Downlink in IEEE 802.11 WLANs
Lim, Wan-Seon; Kim, Dong-Wook; Suh, Young-Joo; Kwon, Dong-Hee;
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 Abstract
This paper addresses the fairness issue between uplink and downlink traffic in IEEE 802.11 WLANs. Some solutions in existing work try to solve this issue by giving smaller minimum contention window (CWmin) value to an AP compared to stations. In contrast to the existing solutions, a proposed algorithm in this paper aims at finding CWmin values that not only provides fairness between uplink and downlink traffic among stations but also achieves high throughput. For this, in the proposed algorithm, an AP checks the number of stations that have uplink and downlink traffic, respectively. Based on this information, the AP calculates optimal CWmin values and announces it to stations. Our simulation results show that the proposed algorithm outperforms existing algorithms in terms of fairness and throughput.
 Keywords
IEEE 802.11;
 Language
Korean
 Cited by
1.
IEEE 802.11 무선 랜에서의 토큰링 기반의 매체 접속 제어 프로토콜,이은국;이승형;

한국통신학회논문지, 2014. vol.39B. 1, pp.38-40 crossref(new window)
2.
고밀집 환경에서 대용량 MIMO WLAN의 네트워크 용량 최대화를 위한 결합 공간 분할 및 재사용 기법,최경준;김경준;김광순;

한국통신학회논문지, 2015. vol.40. 3, pp.469-477 crossref(new window)
 References
1.
IEEE, Part 11: Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) specifications, Reference number ISO/IEC 8802-11:1999(E), IEEE Std 802.11, 1999 edition.

2.
M. Bottigliengo, C. Casetti, C.-F. Chiasserini and M. Meo, "Smart Traffic Scheduling in 802.11 WLANs with Access. Point," IEEE VTC, Oct. 2003.

3.
B.A.H.S. Abeysekera, T. Matsuda, and T. Takine, "Dynamic Contention Window Control to Achieve Fairness Between Uplink and Downlink Flows in IEEE 802.11 WLANs," IEEE WCNC, Mar. 2007.

4.
G. Bianchi, "Performance analysis of the IEEE 802.11 distributed coordination function," IEEE J. Sel. Areas Commun., Vol.18, No. 3, pp.535-547, Mar. 2000. crossref(new window)

5.
A. Grilo and M. Nunes, "Performance evaluation of IEEE 802.11e," IEEE PIMRC, Sep. 2002.

6.
S.W. Kim, B.-S. Kim, and Y. Fang, "Downlink and Uplink Resource Allocation in IEEE 802.11 Wireless LANs," IEEE Transactions on Vehicular Technology, Vol.54, No.1, Jan. 2005.

7.
P. Clifford, K. Duffy, D. Leith, and D. Malone, "On improving voice capacity in 802.11 infrastructure networks," IEEE WirelessCom, June 2005.

8.
Y. Xiao, "Performance Analysis of. Priority Schemes for IEEE 802.11 and. IEEE 802.11e Wireless LANs," IEEE. Transactions on Wireless Commun., Vol.4, No.4, pp.1506-1515.