无线传感器网络中天线相关性对MIMO系统性能的影响

C. Singh, S. Mohan
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引用次数: 5

摘要

多输入多输出(MIMO)已被证明是提高无线通信系统容量和可靠性的一种突破性技术,并已被大多数新兴的无线系统所采用。为了从MIMO中获得预期的增益,发射器或接收器的天线需要根据波长分开最小距离。由于传统铜天线的物理尺寸较大,不可能将它们集成到具有所需物理距离的微型传感器上。将分集技术应用于无线传感器网络,具有提高网络可靠性和降低网络功耗的潜力。然而,传统的天线不适合放置在传感器节点上。本文给出了无线传感器网络中具有相关天线的MIMO在传感器节点上的分析和性能结果。
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Effect of antennas correlation on the performance of MIMO systems in wireless sensor network
Multiple-input multiple-output (MIMO) has been proved to be a path breaking technique for increasing capacity and reliability of a wireless communication system and has been adopted in most emerging wireless systems. To achieve the promised gain from MIMO, the antennas at transmitter or receiver are required to be separated by a minimum distance dependent on wavelength. Owing to the large physical size of traditional copper antennas, it is not possible to integrate them on tiny sensors with the required physical separation. The diversity technique if applied in wireless sensor network has potential to improve reliability as well as reduce power consumption. However, the traditional antennas are not suitable for placement on sensor nodes. This paper presents an analysis and performance results of MIMO with correlated antennas on sensor nodes of wireless sensor network.
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