Date Added: Apr 2010
Cache-and-Forward (CNF) is a future Internet architecture designed for content delivery to mobile users over wireless networks with varying link quality and intermittent connectivity. The CNF protocol is based on strict hop-by-hop transport of media files with in-network storage at each router or wireless access point. The protocol also incorporates content caching capabilities for efficient delivery of popular media files. In this paper, the authors briefly describe the CNF architecture, present a survey of prior work, and describe new CNF link and routing protocols. Throughput results comparing CNF with TCPIIP are summarized for an example wide-area Internet scenario with wireless access networks.