为无线网络中的对称语音/视频流量提供QoS

2007 15th IEEE International Conference on Networks Pub Date : 2007-11-01 DOI:10.1109/ICON.2007.4444105

Justin Wyatt, D. Habibi, I. Ahmad, Hushairi Zen

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引用次数: 12

摘要

IP语音(VoIP)和IP语音视频(VIoIP)正变得非常流行和广泛。这些类型的实时服务产生的流本质上几乎是对称的。我们开发了一种新的令牌传递媒体访问控制(MAC)，称为无线令牌网络(WTN)，在设计时考虑了QoS保证。我们在之前的论文(2006年)中已经表明，由于WTN具有更高的信道效率，因此与802.11e相比，它支持更多的VoIP客户端。在本文中，我们表明，由于给接入点(AP)提供了更高比例的信道访问，WTN还为双向流(如VIoIP)提供了优越的QoS。性能结果是通过将WTN与IEEE 802.11 DCF、IEEE 802.11e EDCA和SpectraLink SVP MAC协议进行基准测试得出的。这些结果表明，虽然适合单向流量，但由于将接入点视为单个客户端节点的设计约束，这些当前流行的解决方案不能为两个方向的流提供QoS。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Providing QoS for Symmetrical Voice/Video Traffic in Wireless Networks

Voice over IP (VoIP) and voice-video over IP (VIoIP) are becoming very popular and widespread. These types of real-time services produce streams that are almost symmetrical in nature. A new token passing media access control (MAC) developed by our group, called wireless token network (WTN), has been designed with QoS guarantees in mind. We have previously shown in our previous paper (2006) that WTN supports a higher number of VoIP clients compared to 802.11e due to its higher channel efficiency. In this paper we show that WTN also provides superior QoS for bidirectional streams such as VIoIP due to a higher proportion of channel access given to the access point (AP). Performance results are generated by benchmarking WTN against IEEE 802.11 DCF, IEEE 802.11e EDCA and SpectraLink SVP MAC protocols. These results show that whilst appropriate for unidirectional traffic, these current popular solutions do not provide QoS for streams in both directions, due to design constraints which treat the access point as a single client node.

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2007 15th IEEE International Conference on Networks

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