摘要
移动通信过程中由于移动设备所处的环境不同,存在不同的信道衰落,从各种衰落模型的相互关系出发,提出了一种移动无线衰落信道混合应用模型。通过实现瑞利衰落分布和对数正态分布,经线性和非线性变换可以得到Nakagami和Suzuki等分布。对提出的复合衰落模型进行仿真,仿真结果符合理论值。该混合衰落模型设计和仿真方法可以用于指导信道模拟器设计和通信系统仿真。
For different environments, there exist different types of fading channel in the communication process of mobile equipment. Based on the relationship of various fading channel models, a composite fading channel model is proposed. By realizing the Raybeigh fading and lognormal distribution and through linear and non-linear transform, the Nakagami and Suzuki distribution could be obtained. The proposed composite fading channel is simulated, and the simulation results are consistent with the theoretical value. The design of composite fading channel model and the simulation method could serve as a guidance in the design of channel simulator and the simulation of communication system.
出处
《通信技术》
2010年第8期94-96,共3页
Communications Technology
关键词
移动无线信道
复合衰落模型
信道仿真
wireless fading channel
composite fading channel
channel simulation
