A Transmission Power Optimization with a Minimum Node Degree for Energy-Efficient Wireless Sensor Networks with Full-Reachability

Yi-Ting Chen, Mong-Fong Horng, Chih-Cheng Lo, Shu-Chuan Chu, Jeng-Shyang Pan, Bin-Yih Liao

    Research output: Contribution to journalArticle

    15 Citations (Scopus)

    Abstract

    Transmission power optimization is the most significant factor in prolonging the lifetime and maintaining the connection quality of wireless sensor networks. Un-optimized transmission power of nodes either interferes with or fails to link neighboring nodes. The optimization of transmission power depends on the expected node degree and node distribution. In this study, an optimization approach to an energy-efficient and full reachability wireless sensor network is proposed. In the proposed approach, an adjustment model of the transmission range with a minimum node degree is proposed that focuses on topology control and optimization of the transmission range according to node degree and node density. The model adjusts the tradeoff between energy efficiency and full reachability to obtain an ideal transmission range. In addition, connectivity and reachability are used as performance indices to evaluate the connection quality of a network. The two indices are compared to demonstrate the practicability of framework through simulation results. Furthermore, the relationship between the indices under the conditions of various node degrees is analyzed to generalize the characteristics of node densities. The research results on the reliability and feasibility of the proposed approach will benefit the future real deployments.

    Original languageEnglish
    Pages (from-to)3951-3974
    Number of pages24
    JournalSensors
    Volume13
    Issue number3
    DOIs
    Publication statusPublished - Mar 2013

    Keywords

    • Energy-efficient
    • Full reachability networks
    • Minimum node degree
    • Transmission optimization

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