IEEE 802.11ax 무선랜에서 멀티미디어 멀티캐스트 서비스를 위한 자원 할당 기법

다국어 초록 (Multilingual Abstract)

This paper proposes a sub-carrier allocation method for efficient multimedia multicast service over IEEE 802.11ax WLANs. The proposed scheme first assigns higher weight to scalable video packets than non-realtime packets when the multimedia traffics arrive to AP transmitter at the same time, where the weights of video packets are calculated by the layer-based error propagation weight in scalable video. Next, it assigns a subcarrier preferentially to the user with the largest sum of weights in each user queue stacked with packets. The simulation results show that the proposed algorithm outperforms than the conventional method. It not only improves the long-term data throughput of the system, but also reduces the transmission delay of scalable video packets, and enables highly important video packets to be transmitted to users as safely as possible.

참고문헌 (Reference)

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