在此篇論文中，針對異質車載網路的車隊情境，提出了成員導向式路由協定，用以有效地匯集車隊成員的3G/3.5G頻寬，在車隊間提供一個更好的合作視訊串流服務。車隊指的是一群從同樣的出發點出發、經由同樣的路徑並且前往同樣目的地的車輛，並且每輛車都配備3G/3.5G以及符合802.11p DSRC標準的網路通訊裝置。最顯而易見的例子即是一群朋友或家人一同駕駛車輛出遊。由於路由協定匯集多個車隊成員的頻寬到單一車隊成員所使用，因此為多來源，單一目的地的傳輸。所提出的路由協定包含兩種路由策略：各自式策略以及匯流式策略。各自式策略藉由選擇多條互相不相交的路徑，用來增加路由協定的可靠性以及達到負載平衡；相反地，匯流式策略藉由將多條資料流整合在特定的車輛上，用來降低無線網路鏈接間互相的碰撞和通訊干擾，同時增加DSRC鏈接的頻寬使用率。在此篇論文中提出了On-Demand Member-Centric Routing(OMR) 協定和Geographic Member-Centric Routing (GMR)協定，並且分別使用各自式策略以及匯流式策略來傳遞資料封包。根據模擬結果顯示，在異質車載網路的車隊情境下，所提出的成員導向式路由協定與其它的路由協定相比之下有效地提高封包傳送成功機率，並且提升吞吐量。

This thesis proposed routing protocols for bandwidth aggregation over VANET in a platoon of vehicles, which are equipped with 3G/3.5G and 802.11p DSRC network interfaces, that are driving together on the highway from the same starting point with the same route, and going to the same destination. An illustrated example for the aforementioned platoon scenario is a group of families/friends who drive their sedans to travel together. The purpose of the routing protocols is to aggregate 3G/3.5G bandwidth from some platoon members called Helpers to a platoon member called Requester, i.e., it belongs to multiple-source to single-destination transmission, to have cooperative video streaming service in the platoon of vehicles. Two strategies that route data from multiple-source to single-destination are considered. One is the severalty strategy in which each data source forwards packets through a path that contains common nodes of other paths as few as possible. The severalty strategy tries to increase the reliability of the routing protocol and to achieve load balance. The other strategy is the merged strategy that tries to merge multiple traffic flows into some specific nodes together, which is opposite to the severalty strategy. The merged strategy tries to reduce the probability of collision while wireless links are competing to forward data concurrently and to increase the DSRC links’ utility. On-Demand Member-Centric Routing (OMR) protocol using the severalty strategy and Geographic Member-Centric Routing (GMR) protocol using the merged strategy are proposed in this thesis. According to the simulation results, our proposed member-centric routing protocols effectively improve the packet delivery ratio and throughput for 3G/3.5G bandwidth aggregation compared with using others in the aforementioned platoon scenario over VANET.

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