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首页> 外文期刊>Communications Magazine, IEEE >Green sensing and access: energy-throughput trade-offs in cognitive networking
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Green sensing and access: energy-throughput trade-offs in cognitive networking

机译：绿色感知和获取：认知网络中的能量吞吐量权衡

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摘要

Limited spectrum resources and the dramatic growth of high data rate applications have motivated opportunistic spectrum access exploiting the promising concept of cognitive networks. Although this concept has emerged primarily to enhance spectrum utilization and to allow the coexistence of heterogeneous network technologies, the importance of energy consumption imposes additional challenges, because energy consumption and communication performance can be at odds. In this article the approaches for energy efficient spectrum sensing and spectrum handoff, fundamental building blocks of cognitive networks, are investigated. The trade-offs between energy consumption and throughput, under local as well as under cooperative sensing, are characterized. We also discuss the additional factors that need to be investigated to achieve energy efficient cognitive operation under various application requirements.
机译：有限的频谱资源和高数据速率应用的急剧增长，激发了利用有前景的认知网络概念的机会频谱接入。尽管此概念的出现主要是为了提高频谱利用率并允许异构网络技术的共存，但是能耗的重要性带来了其他挑战，因为能耗和通信性能可能会不一致。在本文中，研究了节能频谱感知和频谱切换的方法，这是认知网络的基本组成部分。表征了在局部以及协作感测下的能量消耗和吞吐量之间的权衡。我们还讨论了在各种应用程序要求下实现节能认知操作所需研究的其他因素。

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