Current trends show an increasing number of Dedicated Channels having a Small number of Viewers (DCSV for short) in multi-channel live streaming systems. Usually, DCSV channels are either user generated or dedicated channels and they suffer adversely from poor channel performance, mainly, due to having a small number of participants. As a result, when a viewer explicitly requests for a block of streaming content, the probability that the requested block of data will be available among the existing viewers is less than what is required in order to offer a continuous service. We propose HnH (short for Hand in Hand), a novel scheme of cross-channel resource sharing, in order to solve the performance problem of DCSV channels due to their small number of viewers. We next develop a discretetime stochastic model in order to analyze the performance issues of the proposed HnH scheme and provide insight into it. Numerical experiments were conducted in order to first validate the stochastic model, and then to evaluate the performance of the HnH scheme. Experiments showed that the HnH scheme allows an improvement of the quality of service for the viewers of DCSV channels.Index Terms-P2P live streaming, small number of viewers.
There is an increasing number of channels with a limited number of viewers in multi-channel live streaming systems. Such channels suffer from poor channel performance. As a result, when a viewer explicitly requests for a block of streaming content, the probability that the requested block of data will be available among the existing viewers is less than what is required in order to offer a continuous playback. In this work, we propose a novel scheme of cross-channel resource sharing, in order to solve the performance problem of the dedicated channels or channels having a small number of viewers due to their limited number of viewers. We next develop a discrete-time stochastic model for analyzing the performance issues of the proposed scheme and provide insight into it. Experiments showed that our proposed scheme allows an improvement of the performance for the viewers of the channels having a limited number of viewers.
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