基于争用访问周期(CBAP)的IEEE 802.11ad无线局域网饱和吞吐量分析

2016 IEEE Distributed Computing, VLSI, Electrical Circuits and Robotics (DISCOVER) Pub Date : 2016-08-01 DOI:10.1109/DISCOVER.2016.7806241

Upama Rajan, A. Babu

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引用次数: 7

摘要

IEEE 802.11ad毫米波(mmWave)无线局域网(WLAN)标准规定了在基于争用的访问期间(cbap)使用由CSMA/CA组成的混合MAC协议，在服务期间(SPs)使用TDMA。为了减轻毫米波频段中较高衰减的影响，该标准提倡使用定向天线。为了在CBAP期间提供信道访问，可以将AP周围的覆盖区域划分为几个准全域(QO)级别。在本文中，我们的重点是CBAP期间的上行信道访问，其中QO级别下的每个多千兆站(DMG STA)都使用CSMA/CA协议争夺信道访问。通过严格遵循802.11ad MAC规范，我们开发了一个精确的分析模型来计算每个QO级别的饱和吞吐量以及CBAP中网络的饱和吞吐量。我们演示了在802.11ad无线局域网中定向通信的有效性。

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Saturation throughput analysis of IEEE 802.11ad wireless LAN in the contention based access period(CBAP)

The IEEE 802.11ad millimeter wave (mmWave) wireless LAN (WLAN) standard specifies the use of a hybrid MAC protocol consisting of CSMA/CA during the contention based access periods (CBAPs) and TDMA during the service periods (SPs). To mitigate the effects of higher attenuation in the mmWave band, the standard advocates the use of directional antennas. To provide channel access during CBAP, the coverage area around the AP can be divided into several quasi omni (QO) levels. In this paper, our focus is on uplink channel access during CBAP in which every multi-gigabit station (DMG STA) under a QO level contend for channel access using CSMA/CA protocol. We develop an accurate analytical model to compute the saturation throughput of each QO level and that of the network in the CBAP, by closely following the 802.11ad MAC specifications. We demonstrate the effectiveness of directional communication in 802.11ad WLANs.

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来源期刊

2016 IEEE Distributed Computing, VLSI, Electrical Circuits and Robotics (DISCOVER)

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