论文标题
能源有效的传输范围和认知无线电传感器网络的持续时间
Energy-Efficient Transmission Range and Duration for Cognitive Radio Sensor Networks
论文作者
论文摘要
认知无线电（CR）通过使动态频谱访问能够克服频谱稀缺问题来有效利用无线电谱资源。认知无线电传感器网络（CRSN）是配备有CR功能的一种无线传感器网络（WSN）。 CRSN节点由于电池容量有限而需要能够延长网络寿命，因此需要运行能够延长网络寿命。在本文中，在文献中，我们第一次提出了一个问题的问题，即在所有CRSN节点和网络部署中找到共同的节能传输范围和传输持续时间，这将在贪婪的转发方案中最大程度地减少每米消耗的每米消耗的能量。结果揭示了能源有效的CRSN传输范围和持续时间的非平凡关系，这是九个关键网络参数（例如主要用户活动水平）的函数。这些关系为部署前的详细CRSN设计提供了宝贵的见解。
Cognitive Radio (CR) promises an efficient utilization of radio spectrum resources by enabling dynamic spectrum access to overcome the spectrum scarcity problem. Cognitive Radio Sensor Networks (CRSNs) are one type of Wireless Sensor Networks (WSNs) equipped with CR capabilities. CRSN nodes need to operate energy-efficiently to extend network lifetime due to their limited battery capacity. In this paper, for the first time in literature, we formulate the problem of finding a common energy-efficient transmission range and transmission duration for all CRSN nodes and network deployment that would minimize the energy consumed per goodput per meter toward the sink in a greedy forwarding scenario. Results reveal non-trivial relations for energy-efficient CRSN transmission range and duration as a function of nine critical network parameters such as primary user activity levels. These relations provide valuable insights for detailed CRSN designs prior to deployment.
