%% You should probably cite rfc8352 instead of this I-D.
@techreport{ietf-lwig-energy-efficient-08,
    number =    {draft-ietf-lwig-energy-efficient-08},
    type =      {Internet-Draft},
    institution =   {Internet Engineering Task Force},
    publisher = {Internet Engineering Task Force},
    note =      {Work in Progress},
    url =       {https://datatracker.ietf.org/doc/draft-ietf-lwig-energy-efficient/08/},
    author =    {Carles Gomez and Matthias Kovatsch and Hui Tian and Zhen Cao},
    title =     {{Energy-Efficient Features of Internet of Things Protocols}},
    pagetotal = 24,
    year =      2017,
    month =     oct,
    day =       22,
    abstract =  {This document describes the challenges for energy-efficient protocol operation on constrained devices and the current practices used to overcome those challenges. It summarizes the main link-layer techniques used for energy-efficient networking, and it highlights the impact of such techniques on the upper-layer protocols so that they can together achieve an energy-efficient behavior. The document also provides an overview of energy-efficient mechanisms available at each layer of the IETF protocol suite specified for constrained-node networks.},
}