Positioning with Generalized Multi-Carrier Communications Signals

Abstract

This paper covers positioning techniques for cellular networks using generalized multi-carrier communications signals. These techniques are based on symbol-timing synchronization algorithms to find the starting point for the underlying orthogonal frequency division multiplexing symbols of the incident signals. Well known algorithms are, e.g., the Schmidl-Cox algorithm and the Minn algorithm. These algorithms are investigated w.r.t. their positioning capabilities. Furthermore, they are extended to improve the performance in multipath environments and to achieve a sufficient accuracy with weak signals from neighboring out-of-cell base stations.