Radio link performance and traffic capacity of indoor wireless systems integrated with outdoor cellular

We report on investigations of indoor cellular networks for wireless access in a corporate environment. The work is an evolution of that reported by Di Claudio, Graziosi, Luciani, Mecella and Santucci(see Proc. of IEEE VTC2000 Spring, Tokyo, p.1742-46, 2000), where the reference scenario of an integrated private/public environment was presented and preliminary performance results were obtained for a single floor building with simulcast coverage. While retaining the assumption of spectrum sharing between the outdoor cellular and the indoor system, in this paper the more general scenario of a multi-floor building is considered. In this context frequency reuse is required to achieve adequate capacities in large buildings and our investigation aims at evaluating the impact of an unwise choice of the carriers to be allocated to the indoor system. Performance results are reported in terms of performance degradation in the outdoor system due to the presence of the indoor coverage.