Correlation properties of signal at mobile receiver for different propagation environments

TL;DR

This paper investigates how the correlation properties of signals received by mobile receivers vary across different environments and how adaptive delay selection in RAKE receivers can minimize signal correlation for improved performance.

Contribution

It provides an assessment of signal correlation in various environments and demonstrates adaptive delay selection's effectiveness in reducing correlation in complex propagation conditions.

Findings

Lower signal correlation achieved in urban environments.

Adaptive delay selection reduces correlation based on receiver speed.

Correlation properties vary significantly with environmental conditions.

Abstract

An issue of the parameter selection in various branches of a multi-antenna receiver system determines its effectiveness. A significant effect on these parameters are correlation properties of received signals. In this paper, the assessment of the signal correlation properties for different environmental conditions is presented. The obtained results showed that depending on the receiver speed, the adaptive selection of the delays in the different RAKE receiver branches provide minimization of the correlation between the signals. Particularly low levels of the signal correlation could be obtained in complex propagation environments such as urban and bad urban.