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|Type:||Artigo de periódico|
|Title:||Experimental Analysis of a CDMA Adaptive System Performance|
|Abstract:||The adaptive antenna arrays have been regarded as the key solution for increasing the spectral efficiency and improving the system performance in 3G and 4G mobile communication systems. Although the implementation of adaptive antennas is mainly investigated in the base transceiver station (BTS) it is interesting to evaluate their performance at the mobile level. The purpose of this paper is to analyze the results of the propagation measurements carried out at 1.9 GHz in a code division multiple access (CDMA) system with triangle planar inverted-F antenna (PIFA) antenna array, not only in the signal transmission, but also in its reception, with the aim of acquiring a suitable prototype, that can be applied to adaptive antenna systems. Different wireless environments, such as suburban, indoor, and woody were exploited, with line-of-sight (LOS) and nonline-of-sight (NLOS) scenarios. The analysis of results was based on attenuation prediction and comparisons with the received signal by a traditional monopole that is still very used in handsets.|
planar inverted-F antenna (PIFA)
|Editor:||Ieee-inst Electrical Electronics Engineers Inc|
|Appears in Collections:||Unicamp - Artigos e Outros Documentos|
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