Microcell Hot Spot and Smart Antennas Evaluation in WCDMA Macrocell System

Carlos H. M. Lima, Francisco R. P. Cavalcanti, Vicente A. de Sousa Jr., Emanuel B. Rodrigues

DOI: 10.14209/its.2002.570

Evento: 2002 International Telecommunications Symposium (ITS2002)

Keywords:

Abstract

"The major purpose of this contribution is to analyze an hierarchical cell structure with a hot spot embedded in a WCDMA macrocellular system. Particular attention is paid to the impact of the introduction of smart antennas in this context. A system-level simulation approach is employed where we consider two main solutions to deal with the hot spot traffic: the placement of a microcell antenna or the adoption of smart antenna technology at the macrocell. Relative gains in signal-to-interference ratio (SIR) are then evaluated. Distinct scenarios are defined based on the proportion of users of different service classes. An evaluation of which solution is better suited for each scenario is then carried out."

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