A DSP-based approach to congestion control for multihop ad hoc WLANs with BoD access

R. Shafik, S. Weiss, E. Rogers

Research output: Chapter in Book/Report/Conference proceedingConference contribution book

Abstract

In this paper, a {DSP}-based solution has been proposed from control-theoretic paradigm to control the congestion of a multihop ad hoc wireless {LAN} with bandwidth-on-demand access. {T}he 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. {T}his 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. {T}he {S}mith predictor has been used in the closed-loop error controller to compensate for delays that could cause instability. {U}nderpinning 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. {S}imulations illustrate the system performance of the filter-based controller in a simple {WLAN} model. {F}inally, a brief comparative study has been made with some of the recently proposed models that perform similar control tasks.
LanguageEnglish
Title of host publicationThe 2nd IEE/EURASIP Conference on DSP Enabled Radio 2005
Place of PublicationNew York
PublisherIEEE
Pages311-319
Number of pages11
ISBN (Print)0863415601
Publication statusPublished - Sep 2005
Event2nd IEE/EURASIP Conference on DSP Enabled Radio - Southampton, United Kingdom
Duration: 19 Sep 200520 Sep 2005

Conference

Conference2nd IEE/EURASIP Conference on DSP Enabled Radio
CountryUnited Kingdom
CitySouthampton
Period19/09/0520/09/05

Fingerprint

Wireless local area networks (WLAN)
Controllers
System stability
Local area networks
Bandwidth
Recovery

Keywords

  • ad hoc networks
  • wireless LAN
  • telecommunication congestion control
  • closed loop systems
  • asymptotic stability
  • dsp-based
  • congestion control
  • multihop
  • wlans
  • bod access

Cite this

Shafik, R., Weiss, S., & Rogers, E. (2005). A DSP-based approach to congestion control for multihop ad hoc WLANs with BoD access. In The 2nd IEE/EURASIP Conference on DSP Enabled Radio 2005 (pp. 311-319). New York: IEEE.
Shafik, R. ; Weiss, S. ; Rogers, E. / A DSP-based approach to congestion control for multihop ad hoc WLANs with BoD access. The 2nd IEE/EURASIP Conference on DSP Enabled Radio 2005. New York : IEEE, 2005. pp. 311-319
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abstract = "In this paper, a {DSP}-based solution has been proposed from control-theoretic paradigm to control the congestion of a multihop ad hoc wireless {LAN} with bandwidth-on-demand access. {T}he 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. {T}his 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. {T}he {S}mith predictor has been used in the closed-loop error controller to compensate for delays that could cause instability. {U}nderpinning 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. {S}imulations illustrate the system performance of the filter-based controller in a simple {WLAN} model. {F}inally, a brief comparative study has been made with some of the recently proposed models that perform similar control tasks.",
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Shafik, R, Weiss, S & Rogers, E 2005, A DSP-based approach to congestion control for multihop ad hoc WLANs with BoD access. in The 2nd IEE/EURASIP Conference on DSP Enabled Radio 2005. IEEE, New York, pp. 311-319, 2nd IEE/EURASIP Conference on DSP Enabled Radio, Southampton, United Kingdom, 19/09/05.

A DSP-based approach to congestion control for multihop ad hoc WLANs with BoD access. / Shafik, R.; Weiss, S.; Rogers, E.

The 2nd IEE/EURASIP Conference on DSP Enabled Radio 2005. New York : IEEE, 2005. p. 311-319.

Research output: Chapter in Book/Report/Conference proceedingConference contribution book

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N2 - In this paper, a {DSP}-based solution has been proposed from control-theoretic paradigm to control the congestion of a multihop ad hoc wireless {LAN} with bandwidth-on-demand access. {T}he 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. {T}his 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. {T}he {S}mith predictor has been used in the closed-loop error controller to compensate for delays that could cause instability. {U}nderpinning 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. {S}imulations illustrate the system performance of the filter-based controller in a simple {WLAN} model. {F}inally, a brief comparative study has been made with some of the recently proposed models that perform similar control tasks.

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Shafik R, Weiss S, Rogers E. A DSP-based approach to congestion control for multihop ad hoc WLANs with BoD access. In The 2nd IEE/EURASIP Conference on DSP Enabled Radio 2005. New York: IEEE. 2005. p. 311-319