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Towards the fast and robust optimal design of wireless body area networks

Published: 01 December 2015 Publication History

Abstract

Wireless body area networks are wireless sensor networks whose adoption has recently emerged and spread in important healthcare applications, such as the remote monitoring of health conditions of patients. A major issue associated with the deployment of such networks is represented by energy consumption: in general, the batteries of the sensors cannot be easily replaced and recharged, so containing the usage of energy by a rational design of the network and of the routing is crucial. Another issue is represented by traffic uncertainty: body sensors may produce data at a variable rate that is not exactly known in advance, for example because the generation of data is event-driven. Neglecting traffic uncertainty may lead to wrong design and routing decisions, which may compromise the functionality of the network and have very bad effects on the health of the patients. In order to address these issues, in this work we propose the first robust optimization model for jointly optimizing the topology and the routing in body area networks under traffic uncertainty. Since the problem may result challenging even for a state-of-the-art optimization solver, we propose an original optimization algorithm that exploits suitable linear relaxations to guide a randomized fixing of the variables, supported by an exact large variable neighborhood search. Experiments on realistic instances indicate that our algorithm performs better than a state-of-the-art solver, fast producing solutions associated with improved optimality gaps.

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    Published In

    cover image Applied Soft Computing
    Applied Soft Computing  Volume 37, Issue C
    December 2015
    1037 pages

    Publisher

    Elsevier Science Publishers B. V.

    Netherlands

    Publication History

    Published: 01 December 2015

    Author Tags

    1. Body area networks
    2. Integer linear programming
    3. Metaheuristics
    4. Robust optimization
    5. Traffic uncertainty
    6. Wireless sensor networks

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    • (2021)hPSO-SA: hybrid particle swarm optimization-simulated annealing algorithm for relay node selection in wireless body area networksApplied Intelligence10.1007/s10489-020-01834-w51:3(1410-1438)Online publication date: 1-Mar-2021
    • (2020)A Robust Optimization Approach for Designing FTTx Networks Integrating Free Space Optics under Weather UncertaintyProceedings of the 16th ACM Symposium on QoS and Security for Wireless and Mobile Networks10.1145/3416013.3426448(7-13)Online publication date: 16-Nov-2020
    • (2018)Dynamic Wireless Energy Harvesting and Optimal Distribution in Multipair DF Relay Network with Nonlinear Energy Conversion ModelWireless Communications & Mobile Computing10.1155/2018/76382152018Online publication date: 6-Aug-2018
    • (2018)A hybrid firefly and particle swarm optimization algorithm for computationally expensive numerical problemsApplied Soft Computing10.1016/j.asoc.2018.02.02566:C(232-249)Online publication date: 1-May-2018
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