[其他] 請問這段文章數學表示什麼意思??
他大意是說,利用車子上的sensor感應heading(方向) and speed(速度)來找出能連接AP的
時間最長
但是我看不太懂他所表達的cte1,cte2,cte3的意思,不知道可不可以幫我解答??
VEHICULAR NETWORK PATH SELECTION
In general, broken paths increase overhead and latency.
For this reason, selecting paths with the longest expected connection time
may be a good idea.
We present three connection time estimate (CTE) metrics that use heading and
speed hints to estimate whether a path in a vehicular network is likely to be
long-lived.
Let the ordered sequence (u1,...,uj) denote a j-1 hop path,
dh(ui,ui+1) denote the difference in heading of nodes ui and ui+1 (from 0 to 180
degrees),
and s(ui) denote the speed of ui (in m/s).
Our three CTE metrics, called cte1,cte2, and cte3, are defined for a path R =
(u1,...,uj)
圖片
http://ppt.cc/I@Cp
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