An ad hoc networking for inter-MONET using mobile IPv6 and OLSR

Trends in 4G wireless networks are clearly identified by the full-IP concept where all traffic (data, control, voice and video services. etc.) are transported in IP packets. The mobile network (MONET) is a group of mobile nodes moving together as a unit. Such groups are common characteristics of the vehicular environments, for example train and buses (which are attractive because of the high concentration of passengers on these vehicles). This paper investigates an ad hoc networking for inter-MONET communications and interworking between MONETs and the global Internet. We propose a hierarchical architecture: (1) integrating mobile IPv6 and OLSR, a routing protocol for ad hoc networks, to manage universal mobility and to avoid the nested problem; and (2) connecting this ad hoc network to the Internet. The heterogeneous communication is established with the help of specific access routers, which serve as gateways. We describe the network scenario, its basic protocol architecture and we discuss the different practical approaches for routing. We validate our proposed architecture by analyses and simulations.