基于固定增益中继选择技术的无线通信系统

A Study of the Performance of Wireless Communication Systems Based on the Fixed Gain Relay Selection Technique

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.

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.