A Gossip-based optimistic replication for efficient delay-sensitive streaming using an interactive middleware support system

While sharing resources the efficiency is substantially degraded as a result of the scarceness of availability of the requested resources in a multiclient support manner. These resources are often aggravated by many factors like the temporal constraints for availability or node flooding by the requested replicated file chunks. Thus replicated file chunks should be efficiently disseminated in order to enable resource availability on-demand by the mobile users. This work considers a cross layered middleware support system for efficient delay-sensitive streaming by using each device's connectivity and social interactions in a cross layered manner. The collaborative streaming is achieved through the epidemically replicated file chunk policy which uses a transition-based approach of a chained model of an infectious disease with susceptible, infected, recovered and death states. The Gossip-based stateful model enforces the mobile nodes whether to host a file chunk or not or, when no longer a chunk is needed, to purge it. The proposed model is thoroughly evaluated through experimental simulation taking measures for the effective throughput Eff as a function of the packet loss parameter in contrast with the effectiveness of the replication Gossip-based policy.Comment: IEEE Systems Journal 201

On the Performance Analysis of Recursive Data Replication Scheme for File Sharing in Mobile Peer-to-Peer Devices Using the HyMIS Scheme

Advances in wireless networks enable high rates interaction between mobile devices. Short-range wireless communication technologies such as wearable PCs demand low latency and reliability as the first thing for considering QoS. Mobile Peer-to-Peer devices as an autonomous system of mobile routers that are selforganized, self-configured and completely decentralized are characterized by bounded resource sharing reliability. Due to the uncertainty in available resources wireless networks could rarely host file sharing applications in a reliable manner. This paper examines the response of a gossip-based data replication scheme for reliable file sharing under specified patterns and conditions, using the Hybrid Mobile Infostation System (HyMIS). This scheme is based on the advantages of mobile Infostations. Combining the strengths of autonomic gossiping and the hybrid –entirely mobile- Infostation concept, this scheme enables end to end reliability. Examination is performed for the response, the robustness and the offered reliability while examining the effectiveness of the proposed scheme for facing mobility limitations using the gossip-based ‘selection’ of users