Optimal Caching With Content Broadcast in Cache-and-Forward Networks
With the rapid advance in the technology area of data storage, storage capacities have increased substantially while the price has been dropping fast. Motivated by this trend, it has been proposed in the Cache-and-Forward architecture that storage is incorporated into each intermediate CNF router. Content can be cached at CNF routers when they flow through the network, and therefore, routers can serve the subsequent requests later on, without forwarding the requests to the host server, the authors refer to this caching paradigm as In-Network Caching. In this paper, the content caching is enhanced by Content Broadcast (CB), by which a CNF router broadcasts the information of cached content to its neighboring nodes.