SMART: a synchronization scheme for providing multimedia quality in emerging wireless Internet

Abstract

Abstract-In this paper, we present a novel synchronization scheme for multimedia applications that can provide high quality playback performance in emerging wireless environments. Because of the increasing size of global networks and the integration of wireless services, end-to-end delays are gradually increasing. Under these new conditions the existing synchronization schemes based on feedback, can no longer provide the necessary synchronization and thus quality needed for multimedia applications. We propose a novel synchronization scheme that requires no feedback, and which at the same time minimizes the required buffer space. We show that the proposed scheme performs very well, while significantly reducing communication overhead due to the control scheme by removing the feedback loop. Moreover, as its minimal buffer requirements are independent of network delays, the proposed scheme is inherently scalable for the evolving wireless environments.

Lightweight Data Synchronization Scheme in Heterogeneous Sensor Networks

“…In addition, some buffer management schemes with the feedback control are also proposed. Authors of [8] proposed the Pause-And-Run approach for k-stream multimedia presentations over Internet to achieve reliable transmission of continuous media. In [11], Kuo devised an adaptive transmission scheme to ensure the errorresilient and synchronous playback of audio and video streams based on the Real-time Transport Protocol.…”

An Embedded Multimedia Player on S3C6410 Platform

“…T. Wahl et al [7], classifies and evaluates a selection of the most commonly existing time models which are the representation of temporal relations among different media streams. There are some papers that discuss the synchronization of multimedia presentation, framework, tools or specification for media synchronization [8,9,10,11,12,13]. But those researches are focused on using S/W not H/W, and not taken embedded system into account.…”