Beam Codebook Based Beamforming Protocol for Multi-Gbps Millimeter-Wave WPAN Systems
Beam Codebook Based Beamforming Protocol for Multi-Gbps Millimeter-Wave WPAN Systems
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DOI：
10.1109/jsac.2009.091009
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发表时间：
2009-10-01
影响因子：
16.4
通讯作者：
Kato, Shuzo
中科院分区：
文献类型：
--
作者：
Wang, Junyi;Lan, Zhou;Kato, Shuzo
为了实现高速，远距离，可靠的传输60GHz 60GHz无线个人区域网络（60GHz WPAN），我们建议在多物理层的媒体访问控制（MAC）层中实现的波束形成（BF）协议（MAC）（MAC）（MAC）（MAC） phy）设计。提出的BF协议目标是最大程度地减少BF设置时间并减轻60GHz WPAN系统的高路径损失。它由3个阶段组成，即设备（DEV）链接，部门级别搜索和梁级搜索。与具有详尽的搜索机制的BF协议相比，阶段的划分有助于促进设置时间的显着减少。提出的BF协议采用离散的相位变速器，与常规BF相比，通过相振幅调节，它显着简化了DEV的结构，而牺牲增益降低小于1dB。提出的BF协议是完整的设计，无关，它适用于不同的天线构型。仿真结果表明，与详尽的搜索协议相比，建议的BF协议的设置时间高达2％。此外，基于每个元素四个阶段的代码簿，通过在发射器和接收器上使用八个天线元件来实现约15.1db的增益，从而在三米范围内实现了1.6Gbps-data-seramsing。由于支持多个PHY层设计的灵活性，IEEE 802.15.3C已采用了该协议作为可选功能，以实现GBPS通信系统。
In order to realize high speed, long range, reliable transmission in millimeter-wave 60GHz wireless personal area networks (60GHz WPANs), we propose a beamforming (BF) protocol realized in media access control (MAC) layer on top of multiple physical layer (PHY) designs. The proposed BF protocol targets to minimize the BF set-up time and to mitigate the high path loss of 60GHz WPAN systems. It consists of 3 stages, namely the device (DEV) to DEV linking, sector-level searching and beam-level searching. The division of the stages facilitates significant reduction in setup time as compared to BF protocols with exhaustive searching mechanisms. The proposed BF protocol employs discrete phase-shifters, which significantly simplifies the structure of DEVs as compared to the conventional BF with phase-and-amplitude adjustment, at the expense of a gain degradation of less than 1dB. The proposed BF protocol is a complete design and PHY-independent, it is applicable to different antenna configurations. Simulation results show that the setup time of the proposed BF protocol is as small as 2% when compared to the exhaustive searching protocol. Furthermore, based on the codebooks with four phases per element, around 15.1dB gain is achieved by using eight antenna elements at both transmitter and receiver, thereby enabling 1.6Gbps-data-streaming over a range of three meters. Due to the flexibility in supporting multiple PHY layer designs, the proposed protocol has been adopted by the IEEE 802.15.3c as an optional functionality to realize Gbps-communication systems.