Buffer storage for continuous delivery of video data

Abstract

The video communication requires considerable large bandwidth – a scarce resource and thus it needs be used efficiently. It can be traded for buffer storage, i.e. for maintaining more buffer storage the data downloading rate (bandwidth) can be reduced. In order to transmitting the videos, they are divided into segments and the bandwidth of the physical channel is divided into logical channels. A logical channel transmits only one segment of each video. When there is switching of the segments, some time delay, called jitter delay, occurs. The jitter delay, being independent, memoryless, and positive, can be modeled as exponentially distributed random variable. In this paper, we propose a stochastic model incorporating jitter delay for estimating the storage space required in the user’s system in order to maintain continuous delivery of the video data to the users.