Modeling the Multipath Cross-Polarization Ratio for 5-80-GHz Radio Links
Research output: Contribution to journal › Article › Scientific › peer-review
In this paper, we parameterize an excess loss-based multipath component (MPC) cross-polarization ratio (XPR) model in indoor and outdoor environments for above-5-GHz frequency bands. The results are based on 35 measurement campaigns in several frequency bands ranging from 5 to 80 GHz. A conventional XPR model of an MPC assuming a constant mean value fits our measurements very poorly and moreover overestimates the depolarization effect. Our measurements revealed a clear trend that the MPC XPR is inversely proportional to the excess loss in reference to the free-space path loss. The model is physically sound as a higher loss is attributed to more lossy interactions or to a greater number of interactions with objects, leading to a greater chance of depolarization. The measurements furthermore showed that the MPC XPR is not strongly frequency or environment dependent. In our MPC XPR model, an MPC with zero-dB excess loss has a mean XPR of 27 dB. The mean XPR decreases half-a-dB as the excess loss increases by every dB and the standard deviation around the mean is 7 dB. The model is applicable to existing channel models to reproduce realistic MPC XPRs for the above 5-GHz radio links.
|Number of pages||11|
|Journal||IEEE Transactions on Wireless Communications|
|Publication status||Published - Oct 2019|
|MoE publication type||A1 Journal article-refereed|
- Above-6 GHz, sub-6 GHz, geometry-based stochastic channel model (GSCM), channel models, cross-polarization ratio (XPR), maximum likelihood estimation, measurement, millimeter-wave, multipath channels, multipath component (MPC), radio propagation, CHANNEL MODEL