A generic controller for managing TCP transfers in IEEE 802.11 infrastructure WLANs

Sunny, Albert and Panchal, Sumankumar and Panchal, Nikhil and Krishnasamy, Subhashini and Anand, SVR and Hegde, Malati and Kuri, Joy and Kumar, Anurag (2017) A generic controller for managing TCP transfers in IEEE 802.11 infrastructure WLANs. In: JOURNAL OF NETWORK AND COMPUTER APPLICATIONS, 93 . pp. 13-26.

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Abstract

In this paper, we present a generic controller that ensures fair and efficient operation of IEEE 802.11 infrastructure wireless local area networks (WLANs) with multiple co-channel access points. Our controller addresses performance issues of long-lived TCP transfers in multi-AP WLANs, by overlaying a coarse time slicing scheduler on top of a cascaded fair queuing scheduler. The time slices and queue weights, used in our controller, are obtained from the solution of a constrained utility optimization formulation. A study of the impact of coarse time-slicing on TCP is also presented in this paper. We also present a methodology to improve the performance of co-existing short-lived and interactive TCP flows. Finally, we report the results of experiments performed on a real testbed, demonstrating the efficacy of our controller.

Item Type:	Journal Article
Publication:	JOURNAL OF NETWORK AND COMPUTER APPLICATIONS
Additional Information:	Copy right for this article belongs to the ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD, 24-28 OVAL RD, LONDON NW1 7DX, ENGLAND
Department/Centre:	Division of Electrical Sciences > Electronic Systems Engineering (Formerly Centre for Electronic Design & Technology)
Date Deposited:	16 Sep 2017 06:22
Last Modified:	21 Feb 2019 05:27
URI:	http://eprints.iisc.ac.in/id/eprint/57800

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