TrackMAC: An IEEE 802.11ad-compatible beam tracking-based MAC protocol for 5G millimeter-wave local area networks
TrackMAC: An IEEE 802.11ad-compatible beam tracking-based MAC protocol for 5G millimeter-wave local area networks
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DOI：
10.1109/comsnets.2018.8328195
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发表时间：
2018
期刊：
影响因子：
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通讯作者：
Bharadwaj Satchidanandan;Simon Yau;P. Kumar;Ahsan Aziz;A. Ekbal;Nikhil Kundargi
中科院分区：
文献类型：
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作者：
Bharadwaj Satchidanandan;Simon Yau;P. Kumar;Ahsan Aziz;A. Ekbal;Nikhil Kundargi
提出了一种适用于毫米波(mm波)移动无线网络的MAC层设计框架。具体地说，我们考虑一个基础设施无线网络，其中接入点(AP)和移动站(STA)都在60 GHz频段进行通信。为了克服毫米波频率所特有的高路径损耗，发射机和接收机都采用波束成形，并使用高方向性波束进行发射和接收。在这种情况下，依赖于传输的全向特性的诸如CSMA/CA之类的传统媒体访问控制(MAC)协议可能不再适用于有效的媒体访问控制。AP有必要知道相关联的STA所处的方向，以便它可以将其传输引导到该接收器的方向上的预期接收器。有鉴于此，我们提出了TrackMAC，这是一种定向MAC协议，它(I)具有以下特性：(I)它连续地跟踪通常是移动的每个关联站的方向，以及(Ii)可以直接在用于毫米波无线局域网(WLAN)的IEEE 802.11ad标准的规范内实现。通过计算机仿真验证了该体系结构的有效性。
This paper presents a novel framework for MAC design for millimeter-wave (mm-wave) mobile wireless networks. Specifically, we consider an infrastructure wireless network in which both the Access Point (AP) and the mobile stations (STAs) communicate in the 60GHz band. In order to overcome the high path loss that is characteristic of mm-wave frequencies, both the transmitter as well as the receivers employ beamforming and use highly directional beams for transmission and reception. In such a scenario, traditional Medium Access Control (MAC) protocols such as CSMA/CA, which rely on the omni-directional nature of transmissions, may no longer be viable for efficient medium access control. It is necessary for the AP to know the directions that the associated STAs are in so that it can steer its transmissions to an intended receiver in that receiver's direction. In light of this, we propose TrackMAC, a directional MAC protocol that (i) has the property that it continuously tracks the direction of every associated station which, in general, is mobile, and (ii) can be implemented squarely within the specifications of the IEEE 802.11ad standard for mm-wave Wireless Local Area Networks (WLAN). The efficacy of the proposed architecture is demonstrated using computer simulations.