Technical Report: Finger Replacement Schemes for RAKE Receivers in the Soft Handover Region with Multiple BSs over I.N.D. Fading Channels

TL;DR

This paper develops a comprehensive framework for evaluating finger replacement schemes in RAKE receivers within soft handover regions over realistic I.N.D. fading channels, extending previous idealized models.

Contribution

It introduces new closed-form expressions for performance analysis of finger replacement schemes over independent, non-identically distributed fading channels, enhancing practical applicability.

Findings

Derived closed-form expressions for i.n.d. exponential variables

Enhanced performance assessment methods for realistic fading environments

Applicable to various wireless communication system analyses

Abstract

A new finger replacement technique which is applicable for RAKE receivers in the soft handover (SHO) region has been proposed and studied in [1], [2] under the ideal assumption that the fading is both independent and identically distributed from path to path. To supplement our previous work, we present a general comprehensive framework for the performance assessment of the proposed finger replacement schemes operating over independent and non-identically distributed (i.n.d.) faded paths. To accomplish this object, we derive new closed-form expressions for the target key statistics which are composed of i.n.d. exponential random variables. With these new expressions, the performance analysis of various wireless communication systems over more practical environments can be possible.