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        Provisioning quality-of-service to energy harvesting wireless communications

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        Accepted_Manuscript.pdf (PDF, 496Kb)
        Author
        Chen, Xiaojing
        Ni, Wei
        Wang, Xin
        Sun, Yichuang
        Attention
        2299/16866
        Abstract
        Energy harvesting (EH) is an innovative way to build long-term and self-sustainable wireless networks. However, an inconstant EH rate may have an adverse effect on the quality-of-service (QoS) of wireless traffic, such as packet delay and error. In this article we discuss techniques that provide QoS to EH powered wireless communications. A new "dynamic string tautening" method is presented to produce the most energy efficient schedule with substantially lower complexity, compared to convex optimization techniques. The method adapts to the bursty arrivals of wireless traffic and harvested energy, and ensures that delay-sensitive data will be delivered by deadline. Comprehensive designs of EH powered transmitters are also discussed, where the EH rate, battery capacity, and deadline requirement can be jointly adjusted to leverage QoS and the cost.
        Publication date
        2015-04-08
        Published in
        IEEE Communications Magazine
        Published version
        https://doi.org/10.1109/MCOM.2015.7081082
        Other links
        http://hdl.handle.net/2299/16866
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