In this paper we implemented a switched digital video broadcast simulator to simulate a deployment by a service provider that offers a list of content channels to a pool of users. Content channels have different popularity ranking, and therefore, unpopular channels have low probability of being watched. Service providers can exploit this to use limited bandwidth to provide the same number of content channels to users. Our solution investigates the effect of using limited bandwidth allocation on the percieved quality from users' perspective. We ran experiments in which the video quality is adjusted according to bandwidth load. Our results show that it is possible to achieve a reasonable quality of service even when allocating lower bandwidth than would be needed in a traditional broadcast deployment.
['Adil Alsuhaim', 'Zhaoyu Jing', 'James R. Martin']
Design and evaluation of adaptive switched digital video system