Abstract
Mobile Ad Hoc Networks (MANETs) are multihop wireless networks of mobile nodes without any fixed or preexisting infrastructure. The topology of these networks can change randomly due to the unpredictable mobility of nodes and their propagation characteristics. In most networks, including MANETs, each node needs a unique identifier to communicate. This work presents a distributed protocol for dynamic node IP address assignment in MANETs. Nodes of a MANET synchronize from time to time to maintain a record of IP address assignments in the entire network and detect any IP address leaks. The proposed stateful autoconfiguration scheme uses the OLSR proactive routing protocol for synchronization and guarantees unique IP addresses under a variety of network conditions, including message losses and network partitioning. Simulation results show that the protocol incurs low latency and communication overhead for IP address assignment.
Highlights
A Mobile Ad hoc NETwork (MANET) is a set of mobile nodes which communicate through wireless links
We introduce the D2HCP specification: it begins with the data structures used, continues with an explanation of the messages exchanged between nodes for joining and departing the network, and details how synchronization takes place in the protocol
The data structures of this protocol can be classified into those handling the auto-configuration mechanism and those belonging to the OLSR routing protocol
Summary
A Mobile Ad hoc NETwork (MANET) is a set of mobile nodes which communicate through wireless links. In contrast with conventional networks, a MANET does not need a previous infrastructure, since nodes rely on each other to operate themselves, forming what is called multi-hop communication. Such networks have several disadvantages that a conventional network does not present: the topology of this kind of network may change quickly and in an unpredictable way. The address is obtained from the concatenation of a well-known network prefix and the theoretically unique number inside the network generated by the node. This work proposes a Stateful-based auto-configuration protocol that guarantees the uniqueness of IP addresses under a wide variety of network conditions such as missing messages and network partitioning.
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