今日进度--论文5.10

计划从 partition入手

Partitioned Multihop Broadcast Protocol for Time Critical Emergency MessageDissemination in VANET

重点段落：

We assume thatvehicle a got accident. We will detect the event and assignthe priority. Here, the situation is accident, so it is veryurgent message. This is the highest message priority.Thevehicle a broadcast a RTB packet to candidate relay node.We will select the relay node within the cluster. Thecandidate relay node is selected using the Binary partitionphase. The selected relay node sends a CTB packet to thesource node. The vehicle A sends the RTB packet to thevehicles like B, C, D and E. Those vehicles are relaynodes and we have to select the best candidate relay nodeamong the inside the coverage area. We will select the bestcandidate relay node among inside the coverage area ofthe source using the partition. The vehicle A will calculatethe coverage area and divide the coverage area into subsegments. In the above diagram, first sub segment containvehicles B . The second sub segment contains vehicles Cand D. The source will check for candidate node in eachsub segment for one time line. When the time line over, itwill goes for another segment. It will select the E is bestcandidate relay node because it is more nearer and it is inthe same way of the source [8].

继而找到

PRIORITIZED DIRECTIONAL BROADCAST TECHNIQUEFOR MESSAGE DISSEMINATION IN VANETS

重点段落：

Binary partition phase is used to findthe candidate relay node inside the coverage area ofthe source.

优先级公式：

binary partition phase