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Switched Feedback Control for Wireless Networked Systems

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Networked Control Systems

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Abstract

In this chapter a switched output feedback control scheme for networked systems will be presented. The control scheme is applied on client-server architectures where the feedback control loop is closed over a general purpose wireless communication channel between the plant (server) and the controller (client). The inserted delays from the communication network in general are time-varying and degrade the system dynamic performance, while forcing it to instabilities. To deal with these changes a linear quadratic regulator (LQR)-output feedback control scheme is introduced, whose parameters are tuned accordingly to the variation of the measured round trip latency times. The weights of the LQR controllers are subsequently tuned using the theory of linear matrix inequalities (LMIs) to ensure a prescribed stability margin despite the variable latency time. The overall scheme resembles a gain scheduler controller with the latency times playing the role of scheduling parameter. The proposed control scheme is applied in experimental and simulation studies to a networked control system over different communication channels including: (a) the GPRS, (b) the IEEE 802.11b, and (c) the IEEE 802.11b over a mobile ad hoc sensor network (MANET). The underlying mechanisms that generate the time-varying latency times in each case will also be presented and analyzed prior to the control scheme development.

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References

  1. Akyildiz I, Su W, Sankarasubramamian Y, Cayirci E (2002) Wireless sensor networks: a survey. Computer Networks 38:393–422

    Article  Google Scholar 

  2. Akyildiz I, Wang X, Wang W (2005) Wireless mesh networks: a survey. Computer Networks 47:445–487

    Article  MATH  Google Scholar 

  3. Bettstetter C, Vogel H, Eberspecher J (1999) GSM phase 2+ general packet radio service (GPRS): architecture, protocols, and air interface. IEEE Communications Surveys 2, 3rd Quarter

    Google Scholar 

  4. Boyd S, Balakrishnan V, Feron E, Ghaoui L (1993) Control system analysis and synthesis via linear matrix inequalities. In: Proc American Control Conference, San Francisco, CA, 2:2147–2154

    Google Scholar 

  5. Branicky M, Phillips S, Zhang W (2000) Stability of networked control systems: explicit analysis of delay. In: Proc American Control Conference, Urbana, IL, 2352–2357

    Google Scholar 

  6. Crow B, Widjaja I, Kim J, Sakai P (1997) IEEE 802.11 wireless local area networks. IEEE Communications Magazine 35:116–126

    Article  Google Scholar 

  7. Daafouz J, Riedinger P, Iung C (2002) Stability analysis and control synthesis for switched systems: a switched lyapunov function approach. IEEE Trans Automatic Control 47:1883–1887

    Article  MathSciNet  Google Scholar 

  8. Duarte-Melo EJ, Liu M (2003) Data gathering wireless sensor networks: organization and capacity. Computer Networks 43:393–422

    Article  Google Scholar 

  9. Ge S, Sun Z, Lee T (2001) Reachability and controllability of switched linear discrete-time systems. IEEE Trans Automatic Control 46:1437–1441

    Article  MATH  MathSciNet  Google Scholar 

  10. Goodwin GC, Haimovich H, Quevendo DE, Welsh JS (2004) A moving horizon approach to networked controlled systems design. IEEE Trans Automatic Control 49:1427–1445

    Article  Google Scholar 

  11. Halevi Y, Ray A (1988) Integrated communication and control systems: part I-analysis. J Dynamic Systems, Measurement and Control 110:367–373

    Google Scholar 

  12. IEEE Std 802.11 (2001) IEEE standard for local and metropolitan area networks: wireless lan medium access control (MAC) and physical layer (PHY) specification

    Google Scholar 

  13. Information science institute network simulator: http://www.isi.edu/nsnam/ns/

    Google Scholar 

  14. Jonhson DB, Maltz DA, Broch J (2001) Ad-hoc networking. Addison-Wesley, Reading, MA

    Google Scholar 

  15. Langendoen K, Reijers N (2003) Distributed localization in wireless sensor networks: a quantitive comparison. Computer Networks 43:499–518

    Article  MATH  Google Scholar 

  16. Lian F, Moyne J, Tilbury D (2002) Network design consideration for distributed control systems. IEEE Trans Control Systems Technology 10:297–307

    Article  Google Scholar 

  17. Liou L, Ray A (1990) Integrated communication and control systems: part III-nonidentical sensor and controller sampling. J Dynamic Systems, Measurement and Control 112:357–364

    Article  MATH  Google Scholar 

  18. Moller N, Johansson KH, Jalmarsson H (2004) Making retransmission delays in wireless links friendlier to TCP. In: Proc 43rd IEEE Conference on Decision and Control, Paradise Island, Bahamas, 5134–5139

    Google Scholar 

  19. Nair G, Evans R, Mareels I, Moran W (2003) Feedback data rates for nonlinear systems. In: Proc European Control Conference, Cambridge, UK, 731–736

    Google Scholar 

  20. Natkaniec M, Pach AR (2000) An analysis of the backoff mechanism used in IEEE 802.11 networks. In: Proc IEEE Symposium on Computer and Communications, Antibes-Juan les Pins, France, 444–449

    Google Scholar 

  21. Nikolakopoulos G, Panousopoulou A, Tzes A, Lygeros J (2007) Multihopping induced gain scheduling for wireless networked controlled systems. Asian J Control, to appear; a shorter version appears in Proc 44th IEEE Conf Decision and Control, Seville, Spain, 470–475

    Google Scholar 

  22. Overstreet J, Tzes A (1999) An internet-based real time control engineering laboratory. IEEE Control Systems Magazine 99:19–34

    Article  Google Scholar 

  23. Ray A, Halevi Y (1988) Integrated communication and control systems: part IIdesign considerations. J Dynamic Systems, Measurement and Control 110:374–381

    Article  Google Scholar 

  24. Recht B, Andrea R (2004) Distributed control of systems over discrete groups. IEEE Trans Automatic Control 49:1446–1542

    Article  Google Scholar 

  25. Sweet C, Sidhu D (1999) Perfomance Analysis of the IEEE 802.11 wireless standard. In: Proc IEEE Global Telecommunications Conference, Rio de Janeiro, Brazil

    Google Scholar 

  26. Tipsuwan Y, Chow M (2003) Control methodologies in networked control systems. Control Engineering Practice 11:1099–1111

    Article  Google Scholar 

  27. Tzes A, Nikolakopoulos G, Koutroulis I (2005) Development and experimental verification of a mobile client-centric networked controlled system. European J Control 11:229–241

    Article  MathSciNet  Google Scholar 

  28. Walsh GC, Ye H, Bushnell L (2002) Stability analysis of networked control systems. IEEE Trans Control Systems Technology 10:438–446

    Article  Google Scholar 

  29. Weinmann A (1991) Uncertain models and robust control. Springer Verlag New York

    Google Scholar 

  30. Wong WS, Brockett R (1999) Systems with finite communication bandwidth constraints-II: stabilization with limited information feedback. IEEE Trans Automatic Control 44:1049–1053

    Article  MATH  MathSciNet  Google Scholar 

  31. Yoon J, Liu M, Noble B (2003) Random waypoint model considered harmful. In: Proc International Conference on Mobile Computing and Networking, San Diego, CA, 1312–1321

    Google Scholar 

  32. Zhang J, Knopse C, Tsiotras P (2001) Stability of time-delay systems: equivalence between Lyapunov and scaled small gain conditions. IEEE Trans Automatic Control 46:482–486

    Article  MATH  MathSciNet  Google Scholar 

  33. Zheng J, Lee M (2004) A comprehensive study of IEEE 802.15.4. IEEE Press, New York

    Google Scholar 

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Author information

Authors and Affiliations

  1. University of Patras, Patras, Achaia, 26500, Greece

    George Nikolakopoulos, Athanasia Panousopoulou & Anthony Tzes

Authors
  1. George Nikolakopoulos
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  2. Athanasia Panousopoulou
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  3. Anthony Tzes
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Editor information

Editors and Affiliations

  1. Chinese Academy of Sciences, Beijing, 100080, P. R. China

    Fei-Yue Wang PhD

  2. Department of Electrical and Computer Engineering, University of Illinois at Chicago, Chicago, IL, 60607, USA

    Derong Liu PhD

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© 2008 Springer-Verlag London Limited

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Nikolakopoulos, G., Panousopoulou, A., Tzes, A. (2008). Switched Feedback Control for Wireless Networked Systems. In: Wang, FY., Liu, D. (eds) Networked Control Systems. Springer, London. https://doi.org/10.1007/978-1-84800-215-9_6

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  • DOI: https://doi.org/10.1007/978-1-84800-215-9_6

  • Publisher Name: Springer, London

  • Print ISBN: 978-1-84800-214-2

  • Online ISBN: 978-1-84800-215-9

  • eBook Packages: EngineeringEngineering (R0)

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