SECURE ADDRESSING
It represents a low-overhead identity based distributed dynamic address configuration scheme for secure allocation of IP addresses to
authorized nodes of a managed mobile ad hoc network. A new node will receive an IPaddress from an existing neighbor node. Thereafter, each node in a network is
able to generate a set of unique IP addresses from its own IP address, which it
can further assign to more new nodes. Due to lack of infrastructure, apart from
security issues, such type of networks poses several design challenges such as
high packet error rate, network partitioning, and network merging. Our proposed
protocol takes care of these issues incurring less overhead as it does not
require any message flooding mechanism over the entire MANET. Performance analysis and simulation
results show that even with added security mechanisms, our proposed protocol outperforms
similar existing protocols.
A Mobile Ad Hoc Network (MANET)
is a self-configuring infrastructure-less network of mobile nodes connected by
wireless links. Each node in a MANET is free to move independently in any
direction, and will therefore change its links frequently. Nodes that are
within each other’s radio range can immediately communicate, while nodes that
are not in each others radio range communicate via intermediate nodes where the
packets are relayed from source to destination. Manual or static address configuration in most cases is inapplicable as the nodes
in MANET are highly mobile leading to partitioning/merging of networks. Therefore in this type of network a distributed approach
is a prime requirement so that a node can obtain an address dynamically from
the network. Mobile ad hoc networks can be pure (open) or managed.
Pure (open) MANETs are formed without any pre-arrangements or pre-requirements.
These ad hoc networks are formed spontaneously and are self-organized.
No comments:
Post a Comment