狗狗英语在线翻译
规范化搞好妇女高洪波年... 规范化搞好妇女高洪波年 展开
In [25] the authors present an experimental study to test
the feasibility of using user mobility and opportunistic pair-wise contact to form an opportunistic ad-hocnetwork in a
campus environment. Using commodity mobile devices, they
instrument two user studies for experimentally collecting
trace data of user contact. The approach is unique in that
they do not have a predetermined model of user mobility,
and they strive to provide a networking model based only
on pair-wise contact. The results of the experiment are
promising, showing that user mobility can potentially be
used to form a network. Using this trace data, they simulate
an idealized network using epidemicpropagation, and
observe that nodes exhibit signs of regularity and affinity of
contact. Furthermore, in many cases, success of message
delivery from any source to a destination is not evenly dis-tributed among the intermediate nodes. Thus, source nodes
can potentially use this information for better routing deci-sions. During the test, they observe that power management
is one of the critical issues. No new protocols are proposed
in the article. Analysis of the delay in epidemic routing is
presented in [47, 48].
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