Centralized Control of a Multi-Agent System Via Distributed and Bit-Budgeted Communications

We consider a distributed quantization problem that arises when multiple edge devices, i.e., agents, are controlled via a centralized controller (CC). While agents have to communicate their observations to the CC for decision-making, the bit-budgeted communications of agent-CC links may limit the ta...

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Published in:IEEE Wireless Communications and Networking Conference : [proceedings] : WCNC pp. 1 - 6
Main Authors: Mostaani, Arsham, Vu, Thang X., Chatzinotas, Symeon, Ottersten, Bjorn
Format: Conference Proceeding
Language:English
Published: IEEE 01.03.2023
Subjects:
communications for machine learning
data-quantization
Decision making
distributed edge processing
Measurement
multi-agent systems
Pressing
Process control
Quantization (signal)
Scalability
semantic communications
Task analysis
Task-oriented data compression
ISSN:1558-2612
Online Access:Get full text
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Abstract We consider a distributed quantization problem that arises when multiple edge devices, i.e., agents, are controlled via a centralized controller (CC). While agents have to communicate their observations to the CC for decision-making, the bit-budgeted communications of agent-CC links may limit the task-effectiveness of the system which is measured by the system's average sum of stage costs/rewards. As a result, each agent, given its local processing resources, should compress/quantize its observation such that the average sum of stage costs/rewards of the control task is minimally impacted. We address the problem of maximizing the average sum of stage rewards by proposing two different Action-Based State Aggregation (ABSA) algorithms that carry out the indirect and joint design of control and communication policies in the multi-agent system (MAS). While the applicability of ABSA-1 is limited to single-agent systems, it provides an analytical framework that acts as a stepping stone to the design of ABSA-2. ABSA-2 carries out the joint design of control and communication for an MAS. We evaluate the algorithms - with average return as the performance metric - using numerical experiments performed to solve a multi-agent geometric consensus problem.
AbstractList We consider a distributed quantization problem that arises when multiple edge devices, i.e., agents, are controlled via a centralized controller (CC). While agents have to communicate their observations to the CC for decision-making, the bit-budgeted communications of agent-CC links may limit the task-effectiveness of the system which is measured by the system's average sum of stage costs/rewards. As a result, each agent, given its local processing resources, should compress/quantize its observation such that the average sum of stage costs/rewards of the control task is minimally impacted. We address the problem of maximizing the average sum of stage rewards by proposing two different Action-Based State Aggregation (ABSA) algorithms that carry out the indirect and joint design of control and communication policies in the multi-agent system (MAS). While the applicability of ABSA-1 is limited to single-agent systems, it provides an analytical framework that acts as a stepping stone to the design of ABSA-2. ABSA-2 carries out the joint design of control and communication for an MAS. We evaluate the algorithms - with average return as the performance metric - using numerical experiments performed to solve a multi-agent geometric consensus problem.
Author Mostaani, Arsham
Ottersten, Bjorn
Vu, Thang X.
Chatzinotas, Symeon
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  givenname: Thang X.
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  givenname: Symeon
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  givenname: Bjorn
  surname: Ottersten
  fullname: Ottersten, Bjorn
  email: bjorn.ottersten@uni.lu
  organization: University of Luxembourg,Centre for Security Reliability and Trust,Luxembourg
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Snippet We consider a distributed quantization problem that arises when multiple edge devices, i.e., agents, are controlled via a centralized controller (CC). While...
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SubjectTerms communications for machine learning
data-quantization
Decision making
distributed edge processing
Measurement
multi-agent systems
Pressing
Process control
Quantization (signal)
Scalability
semantic communications
Task analysis
Task-oriented data compression
Title Centralized Control of a Multi-Agent System Via Distributed and Bit-Budgeted Communications
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