Condensed parameters for characterizing wideband mobile radio channels

被引：67
作者：
Molisch A.F. [1 ,2 ]
Steinbauer M. [1 ,2 ]
机构：
[1] Inst. Nachrichtentechnik H., TU Wien Gusshausstrasse 25/389
[2] Technical University, Vienna
来源：
International Journal of Wireless Information Networks | 1999年 / 6卷 / 3期
关键词：
Coherence; Frequency Domain; System Simulation; Radio Channel; Mobile Radio;
D O I：
10.1023/A:1018895720076
中图分类号：
学科分类号：
摘要：
Condensed parameters are used for a concise description of wideband mobile radio channel measurements. The most popular are the delay spread, the coherence bandwidth, and the delay window. In this paper, we analyze their definitions, interrelations, and applicability under various circumstances. Similarily, we analyze condensed parameters in the Doppler frequency domain. There are important differences between instantaneous and averaged parameters, and we discuss the meaning of them. We show that ergodicity and WSSUS (wide-sense stationary uncorrelated scattering) are required so that average parameters can be defined. For overspread channels, delay spread and coherence bandwidth can be defined, but they are not meaningful. We demonstrate that the 'classical' descriptions, namely delay spread and coherence bandwidth, do not allow a system-independent characterization of the channel, and we propose a set of window parameters instead. Their meaning for channel characterization and system simulation is investigated.
引用
收藏
页码：133 / 154
页数：21
相关论文
共 33 条
[1]  
Bach Anderson, J., A note on definitions of terms for impulse responses (1989) EUROCOST 231 TD (89) 060
[2]  
Bello, P.A., Characterization of randomly time-variant linear channels (1963) IEEE Trans. Commun. Syst., 11, pp. 360-393
[3]  
Bello, P.A., Nelin, B.D., The effects of frequency selective fading on the binary error probabilities of incoherent and differentially coherent matched filter receivers (1963) IEEE Trans. Commun. Syst., 11, pp. 170-186
[4]  
Buehler, H., (1994) Estimation of Radio Channel Time Dispersion for Mobile Radio Network Planning, , Ph.D. thesis, INTHFT, TU Wien
[5]  
Chuang, J.C.I., The effects of time rms delay spread on portable radio communications channels with digital modulation (1987) IEEE J. Select. Areas Commun., SAC-5, pp. 879-889
[6]  
Clarke, R.H., Khoo, W.L., 3-D mobile radio channel statistics (1997) IEEE Trans. Veh. Techn., 46, pp. 798-799
[7]  
COST207 - Digital Land Mobile Radio Communications - Final Report
[8]  
Cox, D.C., Correlation bandwidth and delay spread multipath propagation statistics for 910 MHz urban mobile-radio channels (1975) IEEE Trans. Commun., COM-23, pp. 1271-1280
[9]  
Crohn, I., Schultes, G., Gahleitner, R., Bonek, E., Irreducible error performance of a digital portable communication system in a controlled time-dispersion indoor channel (1993) IEEE J. Select. Areas Commun., SAC-11, pp. 1024-1033
[10]  
De Weck, J.P., (1992) Real-time Characterization of Wideband Mobile Radio Channels, , Ph.D. thesis, INTHFT, TU Wien
1234