Abstract
Abstract Multi-antenna transceiving systems are widely used in high speed wireless communications due to its higher efficiency comparing to its traditional single-antenna counterparts. In this article, the performance effects of some inevitable imperfections are elaborated on multi-antenna transceiving systems. The simulation results are also displayed. An effective method for phase noise elimination is presented and validated using simulation examples.
Highlights
Multi-antenna transceiving systems are widely used in high speed wireless communications due to its higher efficiency comparing to its traditional single-antenna counterparts
Compared to the single-antenna communication systems, array gain, diversity gain, multiplexing gain, and interference suppression can be obtained by using the multi-antenna communication systems
multi-input multi-output (MIMO) [3,4], which is developed based on the smart antenna technology, has its distinct superiority
Summary
When wideband amplitude and phase error is considered, the signal propogation channel is considered as a matrix [6]:. HN1 · · · hNN where hmn represents the amplitude fading and phase difference between the mth transmitting antenna and the nth receiving antenna (Figure 2). After considering the multi-path transmission, hmn varies with time and can be modeled as [7]. Where b is the relative amplitude fading, τ is the counter-shifting, j is the relative phase, k=. Number and dmn is the distance between the mth transmitting antenna and the nth receiving end. The Fourier transform of the channel matrix is. The channel gain is G = 10 · log10P. The received signal vector can be expressed as
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