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General Information
    • ISSN: 1793-8244 (Print)
    • Abbreviated Title:  J. Adv. Comput. Netw.
    • Frequency: Semiyearly
    • DOI: 10.18178/JACN
    • Editor-in-Chief: Professor Haklin Kimm
    • Executive Editor: Ms. Cherry Chan
    • Abstracting/ Indexing: EBSCO, ProQuest, and Google Scholar.
    • E-mail: jacn@ejournal.net
    • APC: 500USD
Professor Haklin Kimm
East Stroudsburg University, USA
I'm happy to take on the position of editor in chief of JACN. We encourage authors to submit papers on all aspects of computer networks.

JACN 2015 Vol.3(2): 106-113 ISSN: 1793-8244
DOI: 10.7763/JACN.2015.V3.150

Improving Throughput and QoS with IEEE 802.11e

Takumi Sanada, Xuejun Tian, Takashi Okuda, and Tetsuo Ideguchi

Abstract—WLANs have become increasingly popular and widely deployed. The MAC protocol is one of the important technology of the WLAN and affects communication efficiency directly. In this paper, focusing on MAC protocol, we propose a novel protocol that network nodes dynamically optimize their backoff process to achieve high throughput while supporting satisfied QoS. The total throughput decreases heavily and cannot guarantee QoS under a high traffic load, which needs to be improved. Through theoretical analysis, we find that the average idle interval can represent current network traffic load and can be used together with estimated number of nodes for setting optimal CW. Since necessary indexes can be obtained through direct measurement from channel, our scheme will not increase any added load to networks. Through simulation comparison with conventional method, we show that our scheme can greatly enhance the throughput and the QoS no matter the network is in saturated or non-saturated case, while maintaining good fairness.

Index Terms—WLANs, MAC, EDCA, throughput.

The authors are with the School of Information Science and Technology, Aichi Prefectural University, Japan (e-mail: im141008@cis.aichi-pu.ac.jp, tan@ist.aichi-pu.ac.jp, okuda@ist.aichi-pu.ac.jp, ideguchi@ist.aichi-pu.ac.jp).


Cite:Takumi Sanada, Xuejun Tian, Takashi Okuda, and Tetsuo Ideguchi, "Improving Throughput and QoS with IEEE 802.11e," Journal of Advances in Computer Networks vol. 3, no. 2, pp. 106-113, 2015.

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