This paper analyses the traffic characteristics of, and proposes a traffic model for, the Xbox game Halo 2. Our goal is to help players and network providers to estimate the amoun...
In mobile devices, the wireless network interface card (WNIC) consumes a significant portion of overall system energy. One way to reduce energy consumed by a device is to transit...
Service overlay networks have recently attracted tremendous interests. In this paper, we propose a new integrated framework for specifying services composed of service components ...
Packet loss can severely impact streaming video quality. Repair techniques protect streaming video from packet loss but at the price of a reduced effective transmission rate when...
Systems that use or serve multimedia data require timely access to data on hard drives. To ensure adequate performance users must either prevent overload of disk resources, or use...
This paper investigates the problem of assessing the quality of video transmitted over IP networks. Our goal is to develop a methodology that is both reasonably accurate and simpl...
P2P systems inherently have high scalability, robustness and fault tolerance because there is no centralized server and the network self-organizes itself. This is achieved at the ...
Success of peer-to-peer applications in many cases is attributed to user altruism, where a user contributes some of its own resources to facilitate performance of other users. Thi...
Multimedia applications today constitute a significant fraction of the workload running on portable devices such as mobile phones, PDAs and MP3 players. However, the processors i...
We propose an efficient placement algorithm and per-disk prefetching method to effectively support interactive operations in the media server. Our placement policy is incorporate...