%0 Journal Article
%T A P2P Approach to Routing in Hierarchical MANETs
%A Thomas Kunz
%A Silas Echegini
%A Babak Esfandiari
%J Communications and Network
%P 99-121
%@ 1947-3826
%D 2020
%I Scientific Research Publishing
%R 10.4236/cn.2020.123006
%X We present an effective routing solution for the backbone of hierarchical
MANETs. </span></span><span><span><span style=\"font-family:&quot;\"><span style=\"font-family:Verdana;\">Our solution leverages the storage and retrieval mechanisms
of a Distributed Hash Table (DHT) common to many (structured) P2P overlays. Th</span><span style=\"font-family:Verdana;\">e DHT provides routing information in a
decentralized fash</span><span style=\"font-family:Verdana;\">ion, while supporting different forms of node and
network mobility. We split a flat network into clusters, each having a gateway
who participates in a DHT overlay. These g</span><span style=\"font-family:Verdana;\">ateways
interconnect the clusters in a backbone network. Two routing </span><span style=\"font-family:Verdana;\">approaches
for the backbone are explore</span><span style=\"font-family:Verdana;\">d: floodi</span><span style=\"font-family:Verdana;\">ng
and a new solution exploit</span><span style=\"font-family:Verdana;\">ing the storage and
retrieval capabilities of a P2P overlay based on a DHT.</span><span style=\"font-family:Verdana;\"> We </span><span style=\"font-family:Verdana;\">implement both approaches in a net</span><span style=\"font-family:Verdana;\">work
simulator and thoroughly evaluate th</span><span style=\"font-family:Verdana;\">e
performance of the proposed scheme using a range of stati</span><span style=\"font-family:Verdana;\">c and mobile
scenarios. We also compare our solution against flooding. The simulation results
show that our solution, even in the presence of mobility, achieved well abo</span><span style=\"font-family:Verdana;\">ve 90% success rates and maintained very low and
constant round tr</span><span style=\"font-family:Verdana;\">ip times, unlike the flooding approach. In fact, the
performance of the proposed </span><span style=\"font-family:Verdana;\">inter-cluster
routing solution, in many cases, is comparable to the perfo</span><span style=\"font-family:Verdana;\">rma</span><span style=\"font-family:Verdana;\">nce of the intra-cluster routing case. The
advantage of our proposed ap</span><span style=\"font-family:Verdana;\">proach compared to flooding increases as the
number of clusters increases, demonstrating the superior scalability of our
proposed approach.
%K MANET
%K Routing
%K Hierarchical Networks
%K DHT
%K P2P
%K Chord
%K OLSR
%K OMNeT++
%U http://www.scirp.org/journal/PaperInformation.aspx?PaperID=102179