Connecting to the Internet through the nodes of an ad-hoc network is very challenging and necessary. We studied a MANET topology in which all nodes in this MANET need to be connected to the Internet through a special node called the Internet Gateway. Traditional IPv6 Duplicate address Detection(DAD) process cannot be applied for this topology without any modification. In this paper, we propose a stateful IPv6 auto-configuration scheme that can replace DHCPv6 for ad-hoc networks. Our simulation shows that this scheme is lighter and faster than DHCPv6.
Compared to nomadic and fixed relay stations, vehicle-mounted mobile relay stations show different characteristics caused by the time-variant topology, due to their mobility. Especially, a relay mounted in a vehicle is differentiated from nomadic or fixed relay by the restricted distance between the relay and associated mobile station and the variable density of relay deployment in a cell. In this paper, we identify the characteristics of vehicle-mounted mobile relay stations and provide some parameters that highly influence the performance of vehicle-mounted relay. Through simulation, we measure the effect of relay density, zone ratio, relay transmission power, and frame transmission mode on the performance of vehicle-mounted relay. The results show that the performance of vehicle-mounted relay is highly susceptible to the above vehicle-mounted relay-specific parameters.
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