Neighbor node probing method using adaptive and asynchronous rendezvous protocol in opportunistic network and portable communication device using the same

摘要

Provided is a node probing method using an adaptive and asynchronous rendezvous protocol in an opportunistic network. The node probing method includes: selecting, by each of nodes in the opportunistic network, a prime number larger than two; using, by the node, the selected prime number to generate a wake-up pattern according to the following equation:; $$ x_n=\{\begin{array}{cc}\begin{array}{c}1,\\ \end{array}& \begin{array}{cc}\mathrm{if}& n\equiv 0\left(\mathrm{mod}p\right)\mathrm{or}\\ & n\equiv 1\left(\mathrm{mod}p+1\right)\end{array}\\ 0,& \mathrm{others}\end{array}$$where Xn=1 represents a wake-up slot, Xn=0 represents a sleeping slot, and ‘mod p’ represents a modulo operation for the prime number p); and searching, by the node, for a neighbor node according to the generated wake-up pattern.