Towards an Efficient Content-Based DisseminationProtocol and Notification Techniques for DisconnectedMANETs

Hassana Maigary
2013 International Journal of Information and Electronics Engineering  
Opportunistic Networking is a kind of communication in which hosts that compose the network must store, carry and forward a message an d must keep as much messages as possible to increase the chance of sharing them to other hosts. In this kind of network, nodes update continuously their cache according to their mobility and interest. Thus deleting a message in a cache when its deadline is reached reduces the possibility of carrying and sending it to other hosts. According to some realistic
more » ... some realistic scenarios, a host may be interested in content that has just been discarded from a cache. Moreover, cache management in the same area of communication is important for it increases the delivery rate of a message or document. The actual paper presents a protocol that supports communication in sparse and disconnected Network and addresses the problems mentioned above by designing a content notification scheme and a forwarding decision algorithm based on the expiring time of message in disconnected Mobile ad hoc network scenario. Experiments and simulations show that these two approaches of data dissemination we propose improve the content delivery rate and enable fast dissemination of messages Index Terms-Cache management, documents dissemination expiring time, notification service. the problems encountered while providing enlightenment on the nodes traffic issues. II. RELATED WORKS Content-based communication has become one of the most attractive researches in wireless communication area. It has been combined recently with opportunistic networking and delay tolerant networking to overcome the problem of communication discovered in sparsely and intermittently connected network [1]. Thus, a protocol for content-based communication has been designed in order to support communication between devices in disconnected MANETs. This protocol leverages the dissemination approach of Multipoint Relay developed according to OLSR protocol. The protocol helps to choose the best device that relays the message to a node or another part of the network. It feats the concepts of opportunistic networking and delay-tolerant networking to solve the problem of the absence of end-to-end connectivity in disconnected MANETs. The protocol has been embedded within the middleware DoDWAN. Providing services oriented applications is still a challenge in delay tolerant and opportunistic networking, in [1], a solution is provided by implementing on the top of the protocol described in [2] a service discovery and invocation to allows communication between nodes in the network. The problem of fast dissemination still remains in content-based communication. In [3] a selective protocol has been designed
doi:10.7763/ijiee.2013.v3.291 fatcat:3yveamhcvjgxxirkbmw54ku7jm