Rate allocation for quantized control over noisy channels

QC 20110124
To achieve satisfactory overall performance, optimal rate allocation in a networked control system with highly limited communication resources is instrumental. In this paper, a rate allocation technique for state feedback control in linear dynamic systems over a noisy channel is proposed. The method consists of two steps: (i) the overall cost is expressed as a function of rates at all time instants by means of high-rate quantization theory, and (ii) a constrained optimization problem to minimize the overall distortion is solved. It is shown that a non-uniform quantization is in general the best strategy for state feedback control over noisy channels. Monte Carlo simulations illustrate the proposed scheme, which is shown to have good performance when compared to arbitrarily selected rate allocations.

TEKNIK OCH TEKNOLOGIER Elektroteknik och elektronik Reglerteknik hsv//swe
ENGINEERING AND TECHNOLOGY Electrical Engineering, Electronic Engineering, Information Engineering Control Engineering hsv//eng
NATURVETENSKAP Matematik Beräkningsmatematik hsv//swe
NATURAL SCIENCES Mathematics Computational Mathematics hsv//eng
Best strategy
Constrained optimization problems
High-rate quantization
Limited communication
Linear dynamic system
Monte Carlo Simulation
Networked control systems
Noisy channel
Non-uniform quantization
Optimal rate allocation
Overall costs
Quantized control
Rate allocation
Ad hoc networks
Channel capacity
Computer simulation
Constrained optimization
Control system analysis
Dynamical systems
Feedback
Feedback control
Linear control systems
Monte Carlo methods
Wireless telecommunication systems
State feedback
Automatic control
Reglerteknik
Optimization, systems theory
Optimeringslära, systemteori

Skoglund, MikaelKTH,ACCESS Linnaeus Centre,Kommunikationsteori(Swepub:kth)u1dbnyps (författare)
Fischione, CarloKTH,Reglerteknik,ACCESS Linnaeus Centre(Swepub:kth)u18ax6vz (författare)
Johansson, Karl HenrikKTH,Reglerteknik,ACCESS Linnaeus Centre(Swepub:kth)u1h0d9k2 (författare)
KTHACCESS Linnaeus Centre (creator_code:org_t)

Ingår i:Final Proceedings of the 2009 7th International Symposium on Modeling and Optimization in Mobile, Ad Hoc and Wireless Networks, s. 595-6039781424449200

Av författaren/redakt...: Bao, Lei; Skoglund, Mikael; Fischione, Carlo; Johansson, Karl ...

Om ämnet

TEKNIK OCH TEKNOLOGIER: TEKNIK OCH TEKNO ...; och Elektroteknik oc ...; och Reglerteknik

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