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\begin{document}

\title{In Search of the Lost Nodes in BANs}



\author[1]{Costas Michaelides }%
\author[1]{Maria Iloridou }%
\author[1]{Foteini-Niovi Pavlidou }%
\affil[1]{Affiliation not available}%


\vspace{-1em}



  
  \date{May 24, 2024}


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\begin{abstract}
Communication in Body Area Networks (BANs) involves extremely weak
signals because of safety regulations. Human mobility adds one more
layer of complexity as it has an effect on path loss depending on the
activity. In this paper, we improve the quality of service (QoS) by
searching for the lost nodes. Specifically, an Emergency Phase (EP) is
added after RAP1 of IEEE 802.15.6-2012 superframe. The connected nodes
transmit rescue beacons to reach distressed nodes, i.e. nodes that are
disconnected. If a distressed node receives a rescue beacon, it
participates in the current EP. The packets are buffered and relayed to
the hub by the connected nodes. Our results show that when EP is enabled
it is feasible to reach more nodes.%
\end{abstract}%



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