Transport protocol with acknowledgement-assisted storage management for intermittently connected wireless sensor networks

Abstract

The benefits of hop-by-hop transport protocols and in-network storage in intermittently connected networks arewell known. However, due to the extreme limitation on the storage capability of wireless sensor networks (WSNs), the hop-by-hop transport protocols that are based on in-network storage without storage management are inappropriate to apply directly to intermittently connected WSNs. The lack of storage management leads to mote storage overflow when using in-network storage, which in turn degrades the performance of the network. In this paper, we propose a hop-by-hop transport protocol that provides not only end-to-end reliability and congestion control but also an innovative storage management mechanism. The proposed protocol enhances the network delivery rate without sacrificing the delivery speed even in high contention scenarios. © Springer-Verlag 2013.