@techreport{cao-core-aol-req-00,
    number =    {draft-cao-core-aol-req-00},
    type =      {Internet-Draft},
    institution =   {Internet Engineering Task Force},
    publisher = {Internet Engineering Task Force},
    note =      {Work in Progress},
    url =       {https://datatracker.ietf.org/doc/draft-cao-core-aol-req/00/},
    author =    {Zehn Cao},
    title =     {{Allways-online Requirement for Sleeping CoAP Node}},
    pagetotal = 5,
    year =      2011,
    month =     jul,
    day =       4,
    abstract =  {CoAP is to enable a concept of web of sensors, but there are many cases that the sensors are not always online and hence the requests from the web client cannot reach them in timely manner. This document analyzes this problem and describes the requirements for a CoAP enabled sensor to behave always online.},
}