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A Performance Analysis Method of UAV Relay System Based on Spatial Modulation

A technology of spatial modulation and relay system, applied in the field of mobile communication, can solve the problems of no analysis method and difficulty in solving the probability density function, so as to achieve the effect of perfecting the channel model, saving time and cost, and avoiding simulation.

Active Publication Date: 2022-07-26
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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Problems solved by technology

Since the effective signal-to-noise ratio of this type of system is a variable related to system parameters, its probability density function is difficult to solve, so the existing research has not given an analysis method, but the present invention solves this problem and verifies the analysis through simulation The correctness and effectiveness of the method

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  • A Performance Analysis Method of UAV Relay System Based on Spatial Modulation
  • A Performance Analysis Method of UAV Relay System Based on Spatial Modulation

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Embodiment Construction

[0016] The present invention will be further described below in conjunction with the accompanying drawings.

[0017] 1. System Model

[0018] The model of the UAV relay system based on the spatial modulation of the present invention is as follows: figure 2 As shown, the system consists of a source end, a destination end and a single-antenna UAV relay. The number of antennas at the source end and the destination end is N respectively. s and N d . The source end performs fixed gain amplification and forwarding through the UAV relay, and there is no direct link between the source end and the destination end. The system adopts M-order Quadrature Amplitude Modulation (QAM) to spatially modulate the source, and the signal is transmitted in the Rice channel without direct link. According to the principle of spatial modulation, the source end is spatially modulated. The signal is transmitted in each transmission time slot under the Rice channel without direct link. The source end...

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Abstract

The invention discloses a performance analysis method of a UAV relay system based on spatial modulation. Aiming at the UAV relay system based on spatial modulation, a system is established in which the system experiences the Rice channel under the condition of no direct link. model; according to the definition of the joint bound, the system bit error rate is divided into three different error cases, and according to the probability density function and cumulative distribution function of the channel information, the calculation method of the system bit error rate joint bound is given, and further The calculation method of the approximate bit error rate joint bound of the system under high signal-to-noise ratio is given; the diversity degree of the system is given according to the approximate bit error rate joint bound of the system under high signal-to-noise ratio; The proposed performance analysis method can effectively evaluate the bit error rate performance of the system.

Description

Technical field: [0001] The invention relates to a performance analysis method of a mobile communication system, in particular to a performance analysis method of a UAV relay system based on spatial modulation, which belongs to the field of mobile communication. Background technique: [0002] With the continuous growth of communication demands, Fifth Generation (5G) and Beyond Fifth Generation (B5G) mobile communication systems strive to provide higher data transmission rates and service quality in crowded areas, while improving coverage And reduce the blind spots of existing networks. In order to meet the above requirements, the research of UAV technology has become a hot spot, and its controllability of movement and flexibility of deployment make it an important part of the Internet of Things. In addition to UAV technology, Multi-Input Multi-Output (MIMO) technology can also meet the requirements of high data rate transmission in wireless communication, in which spatial m...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B7/0408H04B7/185H04B17/336H04B17/40
CPCH04B7/0408H04B7/18504H04B17/336H04B17/40
Inventor 谢明峰虞湘宾陈家锆黎宁朱秋明
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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