A Novel Spatial Autocorrelation Model of Shadow Fading in Urban Macro Environments

Yu Zhang, Jianhua Zhang, Di Dong, Xin Nie, Guangyi Liu and Ping Zhang
Global Telecommunications Conference, 2008. IEEE GLOBECOM 2008. IEEE
DOI: 10.1109/GLOCOM.2008.ECP.801
Publish Year: 2008

Abstract: In this paper, we propose a novel spatial autocorrelation model of the shadow fading process in urban macro environments. The proposed model is based on the empirical results obtained from extensive wideband radio channel measurement campaigns at 2.35 GHz in an urban area of a typical medium-sized Chinese city. The shadow fading component was extracted assuming a single-slope log-distance path loss model. The consistency with the level crossing theory of Gaussian processes is achieved by an implicit constraint on the parameters of the model. The proposed model gives a better fit to the empirical results in individual measurement routes than the widely reported exponential and double exponential models. An heuristic explanation of the proposed autocorrelation property is also presented.

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