Performance Analysis of Time-Modulated Arrays for the Angle Diversity Reception of Digital Linear Modulated Signals
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Performance Analysis of Time-Modulated Arrays for the Angle Diversity Reception of Digital Linear Modulated SignalsAutor(es)
Data
2017Cita bibliográfica
R. Maneiro-Catoira, J. C. Brégains, J. A. García-Naya, L. Castedo, P. Rocca and L. Poli, "Performance Analysis of Time-Modulated Arrays for the Angle Diversity Reception of Digital Linear Modulated Signals," in IEEE Journal of Selected Topics in Signal Processing, vol. 11, no. 2, pp. 247-258, March 2017, doi: 10.1109/JSTSP.2016.2609852
Resumo
[Abstract]: Diversity occurs whenever several copies of the same transmitted signal arrive at a receiver. Such a situation allows for improving the performance of a wireless communication system transmitting over a radio channel without increasing the transmit power. Previous works have shown that time-modulated arrays are capable of faithfully acquiring digital signals while exploiting angular diversity through the adaptive beamforming of their harmonic patterns. In this work, we take a step further and consider a wireless communication system employing digital linear modulated signals and an innovative receiver that includes a time-modulated array and a maximum ratio combining subsystem. The maximum ratio combiner is adapted to optimally exploit the multipath channel angular diversity. The performance of the system is analyzed in terms of two metrics: the signal-to-noise ratio and the symbol error rate. The results are compared to those achieved with other receivers that include conventional antenna arrays, exhibiting the time-modulated array solution a good tradeoff between performance and hardware complexity.
Palabras chave
Adaptive beamforming
Antenna arrays
Digital communication
Time-modulated arrays
Antenna arrays
Digital communication
Time-modulated arrays
Descrición
This version of the article has been accepted for publication, after peer review. The Version of Record is available online at: https://doi.org/10.1109/JSTSP.2016.2609852.
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ISSN
1932-4553
1941-0484
1941-0484