Max-Min Fair Link Quality in WSN Based on SINR

Ada Gogu, Dritan Nace, Supriyo Chatterjea, Arta Dilo

    Research output: Contribution to journalArticleAcademicpeer-review

    3 Citations (Scopus)
    30 Downloads (Pure)

    Abstract

    This paper addresses first the problem of max-min fair (MMF) link transmissions in wireless sensor networks (WSNs) and in a second stage studies the joint link scheduling and transmission power assignment problem.Given a set of concurrently transmitting links, the MMF link transmission problem looks for transmission powers of nodes such that the signal-to-interference and noise ratio (SINR) values of active links satisfy max-min fairness property. By guaranteeing a “fair" transmission medium (in terms of SINR), other network requirements may be directly affected, such as the schedule length, the throughput (number of concurrent links in a time slot), and energy savings.Hence, the whole problem seeks to find a feasible schedule and a power assignment scheme such that the schedule length is minimized and the concurrent transmissions have a fair quality in terms of SINR.The focus of this study falls on the transmission power control strategy, which ensures that every node that is transmitting in the network chooses a transmission power that will minimally affect the other concurrent transmissions and, even more, achieves MMF SINR values of concurrent link transmissions.We show that this strategy may have an impact on reducing the network time schedule.
    Original languageEnglish
    Article number693212
    Number of pages11
    JournalJournal of applied mathematics
    Volume2014
    DOIs
    Publication statusPublished - 23 Jun 2014

    Keywords

    • EWI-25422
    • IR-93473
    • METIS-309725

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