Simulation of wideband mobile radio channels using subsampled ARMA models and multistage interpolation

信号处理 Pub Date : 2001-08-06 DOI:10.1109/SSP.2001.955351

D. Schafhuber, G. Matz, F. Hlawatsch

引用次数: 37

Abstract

We present a technique for simulating time-varying mobile radio channels. This technique is specifically suited to the small relative Doppler bandwidths of wideband channels encountered in CDMA and OFDM communications. A "subsampled" ARMA innovations filter and multistage interpolation are used to achieve an accurate and computationally efficient approximation of specified or measured Doppler spectra (scattering functions). We discuss the calculation of the ARMA coefficients and the optimal design of the multistage interpolator. Simulation results demonstrate the excellent performance of the proposed channel simulator.

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使用次采样ARMA模型和多级插值的宽带移动无线电信道仿真

我们提出了一种时变移动无线电信道的模拟技术。该技术特别适合于CDMA和OFDM通信中遇到的宽带信道的小相对多普勒带宽。“次采样”ARMA创新滤波器和多级插值用于实现指定或测量的多普勒光谱(散射函数)的精确和计算效率的近似。讨论了ARMA系数的计算和多级插补器的优化设计。仿真结果证明了该信道模拟器的优良性能。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

信号处理

自引率

0.00%

发文量

5812

期刊介绍： Journal of Signal Processing is an academic journal supervised by China Association for Science and Technology and sponsored by China Institute of Electronics. The journal is an academic journal that reflects the latest research results and technological progress in the field of signal processing and related disciplines. It covers academic papers and review articles on new theories, new ideas, and new technologies in the field of signal processing. The journal aims to provide a platform for academic exchanges for scientific researchers and engineering and technical personnel engaged in basic research and applied research in signal processing, thereby promoting the development of information science and technology. At present, the journal has been included in the three major domestic core journal databases "China Science Citation Database (CSCD), China Science and Technology Core Journals (CSTPCD), Chinese Core Journals Overview" and Coaj. It is also included in many foreign databases such as Scopus, CSA, EBSCO host, INSPEC, JST, etc.