Routing Protocol of Semantics-Based Publish/Subscribe Systems over Kademlia Network

Abstract

Based on the routing protocol of Kademlia network and the characteristics of semantics-based publish/subscribe systems, a new type of routing protocol for semantics-based publish/subscribe systems is designed, which is called intersection concept based routing protocol (ICBRP). In ICBRP, user`s subscriptions are classified by minimal intersection concepts and one type of subscriptions is forwarded to the event brokers taking charge of this type. Since event publishing is also based on intersection concepts, every event can be forwarded to the brokers storing the subscriptions which the event may be matched with, and the events is able to be forwarded to all the interested subscribers. The result of simulation experiments shows that the performance of our routing protocol can satisfy the need of application.

Distributed semantic algorithm for power constrained publish/subscribe routing

“…Furthermore, SA nodes could also fail at any time, and rather than being repaired, it is expected that they will be replaced by new ones. The works presented in [13] and [14] describe the semantic based pub/sub architecture for peer to peer networks and for wireless sensor networks respectively. The ontology based architecture objective of this study is based on those two previous works.…”

“…Moreover, subscription and publication can be associated only to a particular MSIC. To generate the global unique semantic identification (GUSID) for the broker, we use the same intersection concept as that presented in [14].…”

“…The semantic based publish subscribe routing protocol utilizes the so-called intersection concept [14]. The intersection concept is formed by atomic concepts and their complements by means of the concept operator " ".…”