A publish-subscribe algorithm for environment awareness in MANETs

The mobile ad hoc networks are characterized by frequent disconnections and partitioning. In this paper, we focus on data dissemination service. We propose a publish/subscribe protocol for MANETs, which is called SAPS algorithm. This Self-Adaptive Publish/Subscribe (SAPS for short) Algorithm makes use of the information about the users' context and social behaviours, to decide how to obtain useful data. Furthermore, the subscribe nodes do not subscribe information periodically, instead, they adjust their subscribe cycle dynamically according to their context and social behaviours. We compare it with Regular Broadcast algorithm and Uniform algorithm in a series of simulation scenarios, the results of which show that our solution is able to improve data availability, use the energy of nodes efficiently, and reduce the network load.