Millimetre wave (mmWave) communication is a promising technique for fifth generation networks. Hybrid precoding is introduced to mmWave communication systems to provide a reasonable trade-off strategy between system p...
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Millimetre wave (mmWave) communication is a promising technique for fifth generation networks. Hybrid precoding is introduced to mmWave communication systems to provide a reasonable trade-off strategy between system performance and energy cost. The hybrid precoder with the partially-connected structure has relatively low hardware complexity and less energy consumption. In this study, the authors decompose the optimisation problem of analogue precoder into several subproblems, and introduce a heuristic method to find the solution. Then, they obtain the digital precoder according to the product of the channel matrix and analogue precoding matrix. Numerical simulations show that the proposed algorithm performs well in most cases. Considering the error of channel estimation or the finite resolution of phase shifters, the proposed algorithm is able to provide acceptable spectral efficiency as well.
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