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Dec 24 / Posted by OMNeT++ MANUAL

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Multicast Resource Allocation Enhanced by Channel State Feedbacks for Multiple Scalable Video Coding Streams in LTE Networks

The growing demand of mobile multicast services such as IPTV and video streaming requires effective radio resource management (RRM) to handle traffic with strict Quality of Service constraints over Long Term Evolution (LTE) and beyond systems. Special care is needed to limit the system performance degradation when multiple multicast streams are simultaneously transmitted. To this aim, this paper proposes a RRM policy based on the subgrouping technique for the delivery of scalable multicast video flows in a cell.

Our proposal enhances the legacy multicast transmission over LTE systems by exploiting the multi-user diversity and the users’ channel quality feedbacks. Moreover, it is designed to take advantage from the frequency selectivity in the subgroup formation. Simulation results demonstrate the effectiveness of the proposed scheme, which outperforms existing approaches from the literature. It succeeds to achieve higher spectral efficiency and to guarantee adequate video quality to all the multicast receivers and improved quality to the ones with good channel conditions.

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