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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是一个下一代无线WLAN标准,它可以支持超过100Mbps的MAC数据吞吐量。帧聚合机制是MAC层的关键特征,可以提高信道利用率的效率。在本文中,我们研究了帧聚合机制对IEEE 802.11n上的视频传输的性能。我们推出了子帧大小和误码率之间的关系以及重试限制和分组丢失率之间的关系,这可以很容易地设计用于视频传输的自适应方案。仿真结果表明,自适应地对信道条件的最佳子帧大小可以提高吞吐量,但对视频质量几乎没有影响,并且正确的重传策略可以显着提高视频质量而不增加端到端延迟。

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