Heterogeneous Routing Protocol for Group Communication in Wireless Ad Hoc Networks

[[abstract]]The mobile ad hoc network (MANET) becomes attractive in the areas of emergency relief and military. In a large-scale MANET with low density of nodes, the connection probability between a pair of arbitrary nodes becomes low. The introduction of the wireless overlay networks such as wireless LAN and GPRS into MANET can increase the connection probability. In this paper, we focus on the application of group communication in this kind of heterogeneous wireless networks. Our developed routing techniques can be divided into two parts: IntrA-group Routing Protocol (IARP) and IntEr-group Routing Protocol (IERP). The proposed routing protocol is different from the typical hierarchical ones by two points. First, our considered network environment is a heterogeneous one. Second, the node grouping is based on both the common interest and the geographical proximity. We provide the advantages of low maintenance cost on group clustering and high connectivity among nodes in a large and sparse MANET.[[fileno]]2030201030064[[department]]資訊工程學