Our paper, titled as "Interactive Screen Video Streaming Based Pervasive Mobile Workstyle" is accpeted by the IEEE Transactions on Multimedia in its special issue on Video over Future Networks: Emerging Technologies, Infrastructures, and Applications. This work is under the joint efforts from Nanjing University, Shanghai Jiaotong University, Nanjing University of Posts & Telecommunications and Yun Ge Zhi Li, Inc.
Abstract: In this paper, we develop an interactive screen video streaming based system to enable the ubiquitous mobile workstyle, which is referred to as Personal Computer to Pervasive Computing (PC2PC). The desktop screens of virtualized systems are compressed in the PC2PC servers and delivered to remote end users for stream decoding, rendering and interactions. We have implemented a system from the scratch, where the emerging screen content coding (SCC) extension of High-Efficiency Video Coding (HEVC) is implemented to compress and stream the desktop screens of the virtualized system in real-time. Three core asset channels, system, display and inputs, are defined to enable systematic end-to-end communication. Compared with Red Hat SPICE virtual desktop infrastructure (VDI) scheme, the proposed PC2PC could save network bandwidth consumption by a factor of 2, 7 and 4 respectively in terms of typical video streaming, web browsing and stationary office applications at the same visual quality. Meanwhile, we have also measured the delays of the system and presented preliminary results on the user experience aspect. A simple network estimation is applied to optimize the quality-bandwidth adaptation for both single user and multi-user scenarios to consider the network dynamics.