The University of Southampton
University of Southampton Institutional Repository

A DSP-Based Approach to Congestion Control for Multihop Ad Hoc WLANs with BoD Access

Shafik, Rishad Ahmed, Weiss, Stephan and Rogers, E.T.A., (2005) A DSP-Based Approach to Congestion Control for Multihop Ad Hoc WLANs with BoD Access Weiss, S. (ed.) At 2nd IEE/EURASIP Conference on DSP Enabled Radio. 19 - 20 Sep 2005. , 31/1-31/9.

Record type: Conference or Workshop Item (Paper)


In this paper, a DSP-based solution has been proposed from control-theoretic paradigm to control the congestion of a multi-hop ad hoc wireless LAN with bandwith-on-demand access. The design of the proposed system has been derived from the reference and error controller model, which essentially controls the queue length against a reference queue length based on the congestion that the system has to combat against. This is done by regulating the desired input rate and required output rate such that the system is asymptotically stable in terms of all possible congestion scenarios. The Smith predictor has been used in the closed-loop error controller to compensate for delays that could cause instability. Underpinning the control paradigm, a filter based solution is proposed with an aim to ensure full-link utilization and to achieve maximum rate recovery as soon as the congestion has been cleared under system stability. Simulations illustrate the system performance of the filter-based controller in a simple WLAN model. Finally, a brief comparitive study has been made with some of the recently proposed models that perform similar control tasks.

Postscript - Other
Download (724kB)

More information

Published date: 2005
Additional Information: Event Dates: September 19-20
Venue - Dates: 2nd IEE/EURASIP Conference on DSP Enabled Radio, 2005-09-19 - 2005-09-20
Organisations: Electronic & Software Systems, Southampton Wireless Group


Local EPrints ID: 263116
ISBN: 0863415601
PURE UUID: 25d9f5e1-76bc-40e2-8944-ad01302259fc

Catalogue record

Date deposited: 17 Oct 2006
Last modified: 18 Jul 2017 07:47

Export record


Author: Rishad Ahmed Shafik
Author: Stephan Weiss
Author: E.T.A. Rogers
Editor: S. Weiss

University divisions

Download statistics

Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.

View more statistics

Atom RSS 1.0 RSS 2.0

Contact ePrints Soton:

ePrints Soton supports OAI 2.0 with a base URL of

This repository has been built using EPrints software, developed at the University of Southampton, but available to everyone to use.

We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive cookies on the University of Southampton website.