一种新的相关复合衰落模拟方法

doi:10.3969/j.issn.0255-8297.2015.05.002

Journal of Applied Sciences ›› 2015, Vol. 33 ›› Issue (5): 470-480.doi: 10.3969/j.issn.0255-8297.2015.05.002

• Communication Engineering • Previous Articles Next Articles

A Novel Method for Generation of Correlated Composite Fading

ZHOU Sheng-kui¹, ZHU Qiu-ming^1,2, DAI Xiu-chao¹, LIU Xing-lin¹, CHEN Xue-qiang¹

1. Key Laboratory of Radar Imaging and Microwave Photonics, Ministry of Education, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China;
2. China Airborne Missile Academy, Luoyang 471009, Henan Province, China

Received:2014-07-20 Revised:2015-02-11 Online:2015-09-30 Published:2015-09-30

Abstract

Abstract: The traditional channel models usually consider the effects of multipath fading only. A new fading model including shadowing and multipath fading is established, and a novel generation method for this correlated composite fading is presented. The proposed method is based on the sum-of-sinusoids (SoS) theory that is easy to implement with hardware. Moreover, theoretical envelope distribution and correlation coefficient of output fading are derived. A method for calculating simulation parameters is given. Experiments on a Virtex4 FPGA hardware platform show that the envelope distribution, Doppler power spectrum and correlation characteristic agree well with the expected values, meaning that the proposed method can be used to simulate random distortion of wireless signals caused by real propagation environment in the lab.

Key words: channel model, channel simulation, temporal correlation, composite fading, sum-of-sinusoids

CLC Number:

TN98

ZHOU Sheng-kui, ZHU Qiu-ming, DAI Xiu-chao, LIU Xing-lin, CHEN Xue-qiang. A Novel Method for Generation of Correlated Composite Fading[J]. Journal of Applied Sciences, 2015, 33(5): 470-480.

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A Novel Method for Generation of Correlated Composite Fading

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