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SAAQ: A Characterization Method for Distributed Servers in Ubicomp Environments.

David Ferere1, Irvin Dongo2,3, Yudith Cardinale2,4

  • 1Departamento de Telecomunicaciones, Universidad Simón Bolívar, Caracas 1080, Venezuela.

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Summary
This summary is machine-generated.

This study introduces a Server Ability to Answer a Query (SAAQ) methodology for Ubiquitous computing (Ubicomp) environments. The SAAQ-based middleware efficiently balances loads across diverse devices, improving task delivery and resource management in the Internet of Things (IoT).

Keywords:
IoTUbicompload balancingmiddleware

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Area of Science:

  • Computer Science
  • Ubiquitous Computing
  • Distributed Systems

Background:

  • Ubiquitous computing (Ubicomp) integrates paradigms like Internet of Things (IoT), mobile, and wearable computing.
  • Ubicomp demands efficient strategies for task delivery, considering device heterogeneity, scalability, reliability, and energy consumption.
  • Existing middleware solutions often fail to jointly consider hardware capabilities and query computational costs for load balancing.

Purpose of the Study:

  • To propose a novel methodology for characterizing distributed servers, services, and network delays in Ubicomp environments.
  • To develop and evaluate a middleware based on the Server Ability to Answer a Query (SAAQ) metric.
  • To enhance load balancing and resource management in heterogeneous Ubicomp systems.

Main Methods:

  • Developed a Server Ability to Answer a Query (SAAQ) methodology for server and service characterization.
  • Implemented a middleware utilizing the SAAQ methodology.
  • Conducted experiments in a museum setting with diverse IoT devices and distributed servers.

Main Results:

  • The SAAQ-based middleware effectively distributes queries to servers with adequate capacity.
  • Service requests are appropriately managed, avoiding devices with hardware restrictions.
  • Achieved good performance in throughput (22.52 ms for web queries) and end-to-end delay (up to 193.30 ms).
  • Demonstrated effective management of computing resources, reaching up to 80% CPU consumption.

Conclusions:

  • The proposed SAAQ methodology provides an effective approach for load balancing in Ubicomp environments.
  • The SAAQ-based middleware enhances efficiency and resource utilization in heterogeneous IoT systems.
  • This approach improves overall system performance and reliability in Ubiquitous computing scenarios.