Research On Smart Caching And Content Sharing For Mobile Networks

The current Internet’s architecture was designed and created in the late1960s and early1970s primarily to enable resource sharing. It was designed as a communication architecture to enable a conversation between two end-hosts. Thus, the usage of Internet nowadays is more than a network for traditional packet deliveries, we are now using it as a distribution network. For this reason, the network architecture needs to be operated in order to effectively support content distribution to the large number of users.Content Centric Networking (CCN) provides a network architecture to support the above requirements. CCN is an evolving distribution network architecture since CCN is a content name-oriented approach to disseminate content to edge gateways/routers. To maximize the probability of content sharing while ensuring minimal upstream bandwidth demand and lowest downstream latency, CCN routers/gateways should cache exchanged content as long as possible. For this reason, novel smart caching policies are firstly proposed and especially designed for CCN. The obtained simulation results demonstrated the good performance of the proposed policies in achieving higher hitting rates. Then, many CCN applications and network architecture solutions are presented in Wireless Body Area Network (WBAN), Vehicle Ad-hoc Network (VANET), Data Center Network (DCN) and Multi-Source Mobile Streaming (MS2) to illustrate for the efficient and flexible CCN implementation.In WBAN, a new type of hybrid system and WBAN transmission network architecture are proposed to provide high Quality of Service (QoS) for remote monitoring in the context of the healthcare system. Long-Term Evolution (LTE) has engaged the best choice for healthcare system and CCN with adaptive streaming is a suitable solution for dynamic patients and physicians.In VANET, motivated by the increasing demand for efficient and reliable information dissemination and retrieval, Vehicular Named Data Networking (VENDNET) solution is proposed by inheriting the basic principle of the CCN into VANET. The obtained results show that CCN mechanism can improve the performance of the VANET significantly. In the era of cloud and mobile social computing, the mobility characteristic may cause a service on mobile station (MS) to be migrated between different Data Centers (DC); otherwise, a packet delay is increased due to the fact that a considerable geographical distance between MS and serving DC. With a current networking architecture, IP address of either MS or Virtual Machine (VM) is changed because of the VM migration, and an IP session between two peers is released and the service is disrupted as a result. Based on unique content name identification in CCN, instead of IP address, service migration can be continuous.Finally, CCN is integrated in recently proposed MS2architecture for mobile multimedia streaming. The resultant architecture improves further the performance of MS2as it makes popular content available to mobile users at caches placed nearby Radio Access Networks. This helps in avoiding the access to popular content from far away servers along paths that could otherwise get congested.