Dynamic Rate Adjustment (DRA) Algorithm for WiMAX Systems Supporting Multicast Video Services

  title={Dynamic Rate Adjustment (DRA) Algorithm for WiMAX Systems Supporting Multicast Video Services},
  author={Ray-Guang Cheng and Wei-Jun Wang and Chang-Lueng Chu},
This paper presents a dynamic rate adjustment (DRA) algorithm for WiMAX systems supporting multicast services. A scalable video coder with layered coding capability is assumed to be used to encode the multicast video information as a single base layer and multiple enhancement layers. The DRA algorithm first determines the portion of the base layer according to the QoS requirement of the multicast video service. It then dynamically adjusts the remaining portions of the enhancement layers to… CONTINUE READING

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