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학술지 Association Scheme with Traffic Control for IEEE 802.11 Wireless LANs
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저자
황재선, 임혁, 오승훈, 이병탁
발행일
201508
출처
IEICE Transactions on Communications, v.E98.B no.8, pp.1680-1689
ISSN
1745-1345
출판사
일본, 전자정보통신학회 (IEICE)
DOI
https://dx.doi.org/10.1587/transcom.E98.B.1680
협약과제
15ZC2300, 지역광부품 고도화를 위한 광융합 기술개발, 이병탁
초록
In wireless LANs, wireless clients are associated with one of access points (APs) to obtain network connectivity, and the AP performs network traffic relay between the wired infrastructure and wireless clients. If a client with a low transmission rate is associated with an AP, the throughput performance of all the clients that are associated with the AP is significantly degraded because of the long channel usage time of the low-rate client. Therefore, it is important to select an appropriate AP when a new client joins the wireless LAN to prevent the performance degradation. In this paper, we propose a traffic control that determines the feasible data traffic from an AP to the clients on the basis of the trade-off relationship between the equal-throughput and equal-airtime traffic allocation policies. We then propose a network-wide association algorithm that allows a client to be associated with the AP that can provide the highest throughput improvement. Simulation results indicate that the proposed algorithm achieves the better aggregate throughput and throughput fairness performances in IEEE 802.11 WLANs.
키워드
AP selection, Association, Traffic allocation, Wireless networks
KSP 제안 키워드
AP selection, Access point, Aggregate throughput, Association algorithm, Association scheme, Channel usage, Data traffic, IEEE 802.11 WLAN, Long channel, Low-rate, Network Connectivity