Implementation of a Smart Traffic Prediction and Flow Control Mechanism for Video Streaming

Skewness‐aware clustering tree for unevenly distributed spatial sensor nodes in smart city

“…If the query window contains the root node region, all sensor nodes are returned (lines 1-2). Otherwise, the region of child nodes is checked such that if a given region belongs to, or has overlap with, the query window, all or partial sensor nodes in this region are to be included into SN set (lines [5][6][7][8][9][10][11][12][13][14][15]. When this region does not corresponds to a leaf node, the sub-regions in this region are processed recursively (line 13).…”

“…Require: nd rt : the root node of SWC-tree sn: sensor node to be queried Ensure: nd sn : the leaf node that contains sn 1: BN pD1 , : : : , BN pDn the set of branch nodes, which are the child nodes of nd rt and have priority p=1, ,n 2: for all j 2 [1 .. n] do 3: for all bn j 2 BN pDj do 4: if sn 2 the set of data objects in bn pDj then 5: if bn pDj has non-leaf nodes then 6: nd sn PriorityQuery(bn pDj , do) 7: else 8: nd sn bn pDj 9: end if 10: break 11: end if 12: end for 13: if nd sn ¤ ; then 14: break 15: end if 16: end for higher priority will be processed first. For all the branch nodes having the same priority, we check whether sensor node sn is included in any branch node or not (lines [3][4][5][6][7][8][9][10][11][12][13][14][15]. When it found that sn is included in a certain leaf node nd sn , nd sn is returned (lines 6, 8, 10, and 14).…”

“…We are witnessing an increasing number of spatial sensor nodes deployed for measuring many parameters in order to achieve a more efficient management of the smart city . Sensor applications in multiple fields such as smart traffic , smart power grids, smart buildings, and smart industrial process control significantly contribute to more efficient use of resources and thus a reduction of greenhouse gas emissions and other sources of pollution. This requires an efficient indexing mechanism for organizing sensor nodes and thus facilitating the manipulation of spatial sensor data.…”