Data Replication in Current Generation Computing Environment

MANET, VANET, CLOUD and IoT are some of the recent computing models or network architecture that has evolved in the recent times. The characteristics of devices and communication links of these types of models vary largely leading to high degree of heterogeneity. The applications designed for such a heterogeneous type of network faces challenges such as frequent network partition, communication link failure, data node crash and variations in the performance of network links etc. Replication of data is a technique which increases data availability in case of occurrence of problems as mentioned above. Though the name replication sounds familiar, its implementation to different networks demands a custom methodology according to the type of network. In this article we study various replication methods used in different network architecture or computing model. We identify the challenges in replicating data in diverse environment and list the scope for possible extensions in future to improve the performance of