نتایج جستجو برای: base station antenna

تعداد نتایج: 337936  

Journal: :CoRR 2013
Tianyang Bai Robert W. Heath

Abstract—Massive multiple-input multiple-output (MIMO) is a transmission technique for cellular systems that uses many antennas to support not-as-many users. Thus far, the performance of massive MIMO has only been examined in finite cellular networks. In this letter, we analyze its performance in random cellular networks with Poisson distributed base station locations. Specifically, we provide ...

Journal: :Journal of the Korea Academia-Industrial cooperation Society 2012

2005
Dieter J. Cichon

The design and implementation of personal communications systems requires the prediction of wave propagation relating to signal-to-noise and signal-to-interference calculation in a cellular system [93]. Small-cell network configurations especially microand pico-cell types are of major interest for urban environments. The commonly used criteria for the definition of a micro-cell is related to th...

2002
W. Joseph L. Martens

To measure electromagnetic fields accurately, the calibration of field probes is necessary. In this paper, an accurate lowcost calibration method is presented. However, calibration does not take into account all influencing factors, especially when measuring fields close to the source (e.g., antenna). While measuring, the electromagnetic field will be disturbed by the measurement probes themsel...

Journal: :Journal of electromagnetic engineering and science 2008

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