The Combined Effect of Signal Strength and Traffic Type on WLAN Performance
The Combined Effect of Signal Strength and Traffic Type on WLAN Performance
复制标题
信号强度和流量类型对 WLAN 性能的综合影响
DOI：
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发表时间：
2009
期刊：
影响因子：
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通讯作者：
K. Sowerby
中科院分区：
文献类型：
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作者：
N. Sarkar;K. Sowerby
利用室内传播测量，研究了接收信号强度（RSS）和业务类型（即语音和视频）对典型WLAN性能的综合影响。在调查中，使用了特设和基础设施网络场景。测量结果表明，RSS对语音和视频流量的播放延迟有显著影响，特别是在较高比特率下。此外，我们还研究了无线信道状态与用户感知音视频流应用质量之间的关系。最后，我们（通过模拟）评估了IEEE 802.11g AP可以支持的同时语音和视频客户端的数量。结果表明，典型的IEEE 802.11g AP在N bbbb15客户机上的性能显著下降。我们的研究结果显示了为多媒体应用部署室内无线局域网的实用性。
Using indoor propagation measurements, the combined effect of received signal strength (RSS) and traffic type (i.e., voice and video) on the performance of a typical WLAN is investigated. In the investigation, both ad hoc and infrastructure network scenarios are used. Measurement results obtained show that RSS has a significant effect on the playback delays of voice and video traffic, especially under higher bit rates. In addition, we study the relationship between wireless channel state and the user-perceived quality of audio and video streaming applications. Finally, we evaluate (by simulation) the number of simultaneous voice and video clients that an IEEE 802.11g AP can support. Results show that the performance of a typical IEEE 802.11g AP significantly deteriorates for N > 15 clients. Our findings show the practicality of deploying indoor WLANs for multimedia applications.