Adaptive selection of configuration methods in 6LoWPAN based IoUT

For providing Internet service to underwater IoT nodes, it is necessary to divide the IPv6 packets appropriately according to appropriate MTU size. 6LoWPAN adaptation layer defined by IETF is able to support the address auto-configuration, header compression and so on. In particular, 6LoWPAN defines two configuration methods. In route-over configuration method and mesh-under configuration methods, fragmentation/reassembly processes are operated as hop-by-hop or end-to-end manner, respectively. However, route-over configuration method consumes computing overhead. On the other hand, mesh-under configuration method could decrease throughputs. Therefore, in this paper, we propose adaptive selection of configuration methods scheme in 6LoWPAN IoUT. In our scheme, each intermediate nodes measure overhead that is occurred by mesh-under configuration method and select their configuration method according to the measured overhead.