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Cluster-based Inter-Domain Routing (CIDR) Protocol for MANETs.
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| Abstract |
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Nowadays, inter-domain routing for MANETs draws increasing
attention because of military and vehicular applications. The
challenges in wireless, mobile inter-domain routing include dynamic
network topology, intermittent connectivity, and routing protocol
heterogeneity. The existing Border Gateway Protocol (BGP) is the de
facto inter-domain routing protocol for the Internet. But BGP is not
applicable to MANETs because the BGP design is based on a static
Internet which does not support dynamic discovery of members, and
cannot scale to mobile, dynamic topology environments.
The proposed cluster-based inter-domain routing (CIDR)
protocol obtains efficient communications among MANETs and
achieves scalability in large networks by using the clustering
technique. The proposed approach generates clusters using group
affinity. In each domain, the distributed clustering algorithm
discovers the set of “traveling companions” – these are the nodes
that stick together as a group for some time or for some common
tasks. It elects within each set a Cluster Head (CH) for each affinity
group. Affinity is defined in terms of some common characteristics,
such as group motion or task. The clusters (i.e., subnets) can be
defined a priori or may evolve dynamically by the affinity of
geography, motion, or task. The cluster head in the subnet acts as
local DNS for own cluster and also (redundantly) for neighbor
clusters. The cluster head advertises to neighbors and the rest of the
network its connectivity, members, and domain information. The
advertising protocol plays the role of BG Protocol. In the proposed
protocol, packets to remote nodes are routed via cluster-head
advertised routes, and packets to local destinations are routed using
the local routing algorithm. The experiments have shown that the
proposed inter-domain routing has achieved scalability and
robustness to mobility.
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| Download |
Paper: PDF file of paper
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| Information & Date |
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In IEEE/IFIP Annual Conference on Wireless On demand Network Systems and Services (WONS), Snowbird, Utah, February. 2009
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| Authors |
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Kelvin Biao Zhou
Zhen Cao
Mario Gerla
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