Estimation of the Radio Channel Parameters using the SAGE Algorithm
نویسندگان
چکیده
This paper presents the problem of estimating the parameters of a given number of superimposed signals, as is the case of the received signal in wireless communications. Based on the description of the received signal in the frequency domain, one version of the SAGE (Space-Alternating Generalized ExpectationMaximization) algorithm is presented, allowing the estimation, for each impinging ray, the delay, azimuth, elevation and complex amplitude. Ray retrieval results are presented in synthetic channels, using data generated with the extended Saleh-Valenzuela (ESV) model, and also in real channels.
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