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Video transmission over IEEE 802.11n WLAN with adaptive aggregation scheme

机译:具有自适应聚合方案的IEEE 802.11n WLAN上的视频传输

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IEEE 802.11n is a next-generation wireless WLAN standard which can support a MAC data throughput over 100Mbps. Frame aggregation mechanism is a key feature at the MAC layer which can improve the efficiency of channel utilization. In this paper, we investigate the performance of video transmission over IEEE 802.11n with frame aggregation mechanism. We derive the relationship between Subframe size and bit error rate and the relationship between retry limit and packet loss rate, which can be easily used to design adaptive scheme for video transmission. Simulation results shown that the optimal subframe size adaptively to channel conditions can improve the throughput but has little effect on the video quality, and proper retransmission policy can significantly improve the video quality without increasing the end-to-end delay.
机译:IEEE 802.11n是下一代无线WLAN标准,可以支持超过100Mbps的MAC数据吞吐量。帧聚合机制是MAC层的关键特性,可以提高信道利用效率。在本文中,我们研究了具有帧聚合机制的IEEE 802.11n上视频传输的性能。我们推导了子帧大小与误码率之间的关系,以及重试限制与丢包率之间的关系,可以很容易地为视频传输设计自适应方案。仿真结果表明,适应信道条件的最优子帧大小可以提高吞吐量,但对视频质量影响很小,适当的重传策略可以在不增加端到端延迟的情况下显着提高视频质量。

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