Performance evaluation method for MIMO (Multiple Input Multiple Output) multi-antenna system and multi-antenna system

A multi-antenna system and performance technology, applied in transmitter monitoring, receiver monitoring and other directions, can solve the performance impact of MIMO antenna array element directional system performance, and achieve the effect of expanding transceiver performance, excellent system performance, and optimized performance

Active Publication Date: 2015-04-08
南京新启迪软件工程有限公司
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Problems solved by technology

But the directionality of MIMO antenna elements can have a huge impact on system performance

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  • Performance evaluation method for MIMO (Multiple Input Multiple Output) multi-antenna system and multi-antenna system
  • Performance evaluation method for MIMO (Multiple Input Multiple Output) multi-antenna system and multi-antenna system
  • Performance evaluation method for MIMO (Multiple Input Multiple Output) multi-antenna system and multi-antenna system

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[0023] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0024] The invention introduces the directivity of the antenna unit while considering the spatial fading signal correlation, proposes a terminal MIMO multi-antenna model based on a statistical channel model, and evaluates its performance. The APS model of the signal-of-arrival azimuth power spectrum at the terminal can be applied to the MIMO channel modeling of Kronecker. We found that the spatial fading correlation (Spatial Fading Correlation, SFC) between the signals arriving at the two MIMO array elements is a function of the signal-of-a...

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Abstract

The invention discloses a performance evaluation method for an MIMO (Multiple Input Multiple Output) multi-antenna system and the multi-antenna system. The system assumes that a channel matrix complies with a zero-mean spatial white noise model at the transmitting end, and a group of linear arrays of which array elements are directional antennae are arranged at the receiving end of the system. According to the performance evaluation method for the MIMO multi-antenna system, the directional antenna array elements are introduced into linear antennae, so that a spatial statistics channel model is effectively expanded, the transmitting and receiving performances of an MIMO multi-antenna array are deepened, and the performances of a terminal antenna array and a wireless communication system are optimized; by introduction of spatial fading correlation coefficients and performance evaluation parameters such as MIMO multi-path channel capacity and error code rate, the advantages of a directional antenna array relative to an omnidirectional antenna array are analyzed, and the system performance of the directional antenna array is superior to that of the omnidirectional antenna array according to a relationship among the system performance, the distribution of arrival signals and the direction of a directional antenna beam.

Description

technical field [0001] The invention relates to a MIMO multi-antenna system performance evaluation method and a multi-antenna system, and belongs to the technical field of terminal MIMO multi-antenna array element directionality. Background technique [0002] In recent years, due to the rapid increase of mobile communication network users, the radio frequency spectrum has become increasingly crowded. In the past, we often increased system capacity by splitting cellular macrocells or microcells to alleviate congestion in cellular systems. However, splitting cellular cells is costly and requires reconfiguration of the cellular system. Adaptive antennas can effectively solve this problem. A Multiple Input Multiple Output (MIMO) system composed of adaptive antennas can significantly increase data transmission rate through multipath signal multiplexing, and can improve receiving performance through diversity. Theoretically, the MIMO multi-path channel capacity can be doubled wit...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B17/15H04B17/29
Inventor 周杰王亚林
Owner 南京新启迪软件工程有限公司
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