ISSN : 1796-2056
Volume : 3    Issue : 5    Date : May 2008

Avoidance Mechanism of Redundant Transmissions in Content Cruising System
Takaaki Ishida, Keijiro Ehara, Seiichiro Toda, Yasuhiro Ohara, Masayoshi Imaike, and Jun Murai
Page(s): 65-77
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“Content Cruising System (CCS)” is developed as a decentralized and autonomous distribution
system for location-based contents. The content put into CCS carries itself to the destination
location and tries to remain there by continual wireless ad-hoc communications among mobile
nodes. Focusing on the density of nodes, to tackle the Broadcast Storm problem is imperative. CCS
has an avoidance mechanism of redundant transmissions constructed by cooperation of its pre-
loaded algorithms, therefore CCS can avert the Broadcast Storm problem regardless of the
increase in the number of nodes. Through the experiments with a network simulator, it was
confirmed that the mechanism functioned as planed, packet loss on the air was kept lower, the time
taken to acquire flowed contents was shortened considerably when the mechanism was applied. In
this paper we describe the basic operation of the mechanism and examine the effectiveness of it
from various angles.

Index Terms
Autonomous Decentralized System, Wireless P2P Ad-hoc Communication, Location Based Service,
Content Distribution System, Broadcast Storm