Capacity of a wireless local loop network based on GSM

摘要

This paper considers the use of GSM as an access technology for wireless local loop (WLL) applications. Two types of terminals were investigated: a standard GSM mobile station (MS) with limited mobility and a fixed MS using a roof-mounted directional antenna. The characteristics of these types of terminals make it possible to improve on the network configuration, implying a potential gain in traffic capacity. The goal of the paper is to find the capacity limit of a GSM WLL network and the discussion is based on simulation results obtained with a network simulation tool. Topics such as power control, frequency reuse, multi-layer cell structures and increased sectorization at the base station are be considered. The results show a capacity gain of up to a factor 2.5 compared to a standard GSM mobile network.