CAJ | 학술논문

为了提高多输入多输出 MIMO 中继通信系统的可靠性和有效性，对中继节点采用的相关选择技术的研究很有必要。本文在阐述 MIMO通信系统的调制、检测等相关关键技术与固定增益中继选择技术的基础上，创新性地设计了基于 MIMO 固定增益中继选择技术的无线通信系统，并进行了仿真实验。仿真结果表明：中继选择技术在整体上提高了系统的传输性能，降低了误码率，使通信系统有较强的抗干扰能力。
위료제고다수입다수출 MIMO 중계통신계통적가고성화유효성，대중계절점채용적상관선택기술적연구흔유필요。본문재천술 MIMO통신계통적조제、검측등상관관건기술여고정증익중계선택기술적기출상，창신성지설계료기우 MIMO 고정증익중계선택기술적무선통신계통，병진행료방진실험。방진결과표명：중계선택기술재정체상제고료계통적전수성능，강저료오마솔，사통신계통유교강적항간우능력。
In order to improve the reliability and validity of the MIMO (multiple input multiple output) relay communication system, it is necessary to study the relay node selection technique used in communication systems. Based on an analysis of the MIMO communication system modulation, detection and the fixed-gain relay selection technology, a wireless communication system based on MIMO fixed gain relay selection technology is designed and simulated. Simulation results show that the relay selection technique improves the transmission performance of the system overall, reduces the bit error rate and strengthens the communication system’s anti-interference ability.