Session continuity and prefetching for adaptive streaming in 5g wireless networks

Abstract

Targeting to handle the explosive growth of mobile media streaming the emerging 5th generation 5G systems need to manage control plane and data plane appropriately The control plane is used for node association in the Heterogeneous Cellular Network HCNs as well as data plane for media streaming with heterogeneous user equipment To satisfy the above requirements we proposed a solution to alter the control plane and data plane by systematic usage of in-network resource available in wireless edge eg macro pico and femto Small Base Stations SBS for the deployment of smart association policies and media processing technique which improve the efficiency in 5G wireless networks On the other hand due to the broadcast nature of wireless medium we introduce the Media Processing Agent MPA that would reside in wireless edge to process the media on the fly and then deliver streams adaptively to the participants MPA can identify the presenter among the participants for sending it to the media server and the observer can service from prefetcher of MPA itself To better exploit the participant s node association with the nearby SBS s association policies are enhanced with concerns on dynamic association with SBS s Also we describe a heuristic algorithm that provides significant performance gains compared to the existing centralized processing schemes Numerical results are presented with realistic parameters for the media processing speed and the quality of delivery demonstrate up to 20 reduction in CPU usage over existing centralized media processing schemes newline