Modeling the Power Angular Profile of Dense Multipath Components Using Multiple Clusters

IEEE Access

Emmeric Tanghe¹  Wout Joseph¹  Luc Martens¹  Brecht Hanssens¹  Kentaro Saito²  Jun-Ichi Takada² 

[1] INTEC-WAVES, Ghent University-imec, Ghent, Belgium;School of Environment and Society, Tokyo Institute of Technology, Tokyo, Japan;

关键词: Channel modeling;    channel sounding;    DMC;    indoor;    multipath estimation;    polarization;   

DOI  :  10.1109/ACCESS.2018.2871618

来源: DOAJ

【 摘 要 】

In this paper, the power angular profile (PAP) of the dense multipath components (DMCs) was analyzed and characterized based on a channel sounding measurement campaign at 11 GHz in an indoor environment. The specular multipath components (SMCs) were estimated with the SAGE algorithm, and the RiMAX framework was applied for the estimation of the DMC in both the time-delay and the angular domain. After careful inspection of the spectrum of the residual signal components in the angular domain, we found that the DMC should be modeled by taking into account multiple angular clusters at different angles, to better characterize the diffuse scattering between transmitter and receiver, originating from multiple reflections in an environment. Therefore, we propose to extend the maximum likelihood estimation of the angular DMC parameters in the RiMAX framework so that the PAP of the DMC can be modeled with a multimodal von Mises distribution. We also validate our proposed method with the results of the measured channel sounding data.

【 授权许可】

Unknown