TCP acknowledgement compression for fairness among uplink TCP flows in IEEE 802.11n WLANs

被引：1
作者：
机构：
[1] Digital Media and Communications R and D Center, Samsung Electronics Co.,Ltd
[2] Department of Information and Communication Engineering, Dongguk University-Seoul
来源：
Park, E.-C. (ecpark@dongguk.edu) | 1600年 / Institute of Control, Robotics and Systems卷 / 19期
关键词：
Fairness; Frame aggregation; IEEE; 802.11n; TCP ACK;
D O I：
10.5302/J.ICROS.2013.13.1926
中图分类号：
学科分类号：
摘要：
This paper deals with the problem of unfairness among uplink TCP (Transmission Control Protocol) flows associated with frame aggregation employed in IEEE 802.11n WLANs (Wireless Local Area Networks). When multiple stations have uplink TCP flows and transmit TCP data packets to an AP (Access Point), the AP has to compete for channel access with stations for the transmission of TCP ACK (acknowledgement) packets to the stations. Due to this contention-based channel access, TCP ACKs tend to be accumulated in the AP's downlink buffer. We show that the frame aggregation in the MAC (Medium Access Control) layer increases TCP ACK losses in the AP and leads to the serious unfair operation of TCP congestion control. To resolve this problem, we propose the TAC (TCP ACK Compression) mechanism operating at the top of the AP's interface queue. By exploiting the properties of cumulative TCP ACK and frame aggregation, TAC serves only the representative TCP ACK without serving redundant TCP ACKs. Therefore, TAC reduces queue occupancy and prevents ACK losses due to buffer overflow, which significantly contributes to fairness among uplink TCP flows. Also, TAC enhances the channel efficiency by not transmitting unnecessary TCP ACKs. The simulation results show that TAC tightly assures fairness under various network conditions while increasing the aggregate throughput, compared to the existing schemes. © ICROS 2013.
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页码：653 / 660
页数：7
相关论文
共 15 条
  • [1] Munoz L., Agero R., Choque J., Lrastorza J.A., Sanchez L.A.G., Petrova M., Moahonen P., Empowering next generation wireless personal communication netorks, IEEE Communication Magazine, 42, 5, pp. 64-70, (2004)
  • [2] Leith D.J., Clifford P., Using the 802.11e EDCF to achieve TCP upload fairness over WLAN links, Proc. of Modeling and Optimization in Mobile, Ad Hoc, and Wireless Networks, pp. 109-118, (2005)
  • [3] Wu H.T., Cheng S.D., DCF+: An enhancement for reliable transport protocol over WLAN, Journal of Computer Science and Technology, 18, 2, pp. 201-209, (2003)
  • [4] Hirano Y., Murase T., Uplink TCP traffic control with monitoring downlink buffer for throughput fairness over wireless LANs, Proc. of Personal, Indoor and Mobile Radio Communications (PIMRC), pp. 737-741, (2009)
  • [5] Keceli F., Inan I., Ayanoglu E., TCP ACK congestion control and filtering for fairness provision in the uplink of IEEE 802.11 infrastructure basic service set, Proc. of IEEE International Conference on Communications (ICC), pp. 4512-4517, (2007)
  • [6] Pilosof S., Ramjee R., Raz D., Shavitt Y., Sinha P., Understanding TCP fairness over wireless LAN, Proc. of IEEE INFOCOM, pp. 863-872, (2003)
  • [7] Wu Y., Niu Z., Zheng J., Study of the TCP upstream/downstream unfairness issue with per-flow queueing over infrastructure-mode WLANs, Wirless Communications and Mobile Computing, 5, 4, pp. 459-471, (2005)
  • [8] Leith D.J., Clifford P., Malone D.W., Ng A., TCP fairness in 802.11e WLANs, IEEE Communications Letters, 9, 11, pp. 964-966, (2005)
  • [9] Wu Q., Gong M., Williamson C., TCP fairness issues in IEEE 802.11 wireless LANs, Computer Communications, 31, 10, pp. 2150-2161, (2008)
  • [10] Xia Q., Jin X., Hamdi M., Active queue management with dual virtual proportional integral queues for TCP uplink/downlink fairness in infrastructure WLANs, IEEE Trans. on Wireless Communications, 7, 6, pp. 2261-2271, (2008)
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