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Green operation of multi-band wireless LAN in 60 GHz and 2.4/5 GHz

机译：60 GHz和2.4 / 5 GHz的多频段无线LAN的绿色运行

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摘要

IEEE 802.11ad Task Group is currently defining a standard for multi-gigabits per second data rate WLAN connections in the 60 GHz band with a target completion date of 2012. The 802.11n, which operates in 2.4/5 GHz band, guarantees data rate of at least 108 Mbps and coverage of about 50 meters, with a maximum data rate of 600Mbps over relatively short distances. In comparison, 60 GHz band can support multi-gigabit data-rates (up to 6 Gbps), but the typical coverage is limited to around 10 meters due to significantly higher propagation loss. Therefore, the two wireless bands provide widely different, yet complementary, characteristics in terms of range and throughput. However, there is a greater need for an efficient multi-band operation that enables selecting the optimum interface based on the communicating stations physical proximity and multi-band channel conditions. In this paper, we present techniques that facilitate green multi-band IEEE 802.11ad for portable devices. We performed a detailed simulation study and the results indicate that the proposed techniques reduce energy consumption of the multi-band Wi-Fi devices as they are at least 40% more power efficient.
机译：IEEE 802.11AD任务组目前在60 GHz频段中为每秒60 GHz频段定义多千兆位数据速率WLAN连接标准，其目标完成日期为2012年.802.11n，它在2.4 / 5 GHz频段中运营，保证数据率至少108 Mbps和覆盖率约为50米，在相对较短的距离上最大数据速率为600Mbps。相比之下，60 GHz频段可以支持多千兆位数据率（最多6 Gbps），但由于显着更高的传播损耗，典型覆盖率限制在大约10米。因此，两个无线频带在范围和吞吐量方面提供广泛的不同但又互补的特征。然而，可以更需要基于通信站的信息邻近和多频段信道条件选择选择最佳接口的有效多频带操作。在本文中，我们提出了便于用于便携式设备的绿色多频段IEEE 802.11ad的技术。我们进行了详细的仿真研究，结果表明，所提出的技术降低了多频带Wi-Fi设备的能耗，因为它们的功率效率至少为40％。

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