Combined Spatial and Temporal Equalization for Mobile Radio Applications

Erik Lindskog, Mikael Sternad and Anders Ahlén

Proceedings of Nordic Radio Symposium, Linköping, Sweden, October 26-27, 1994, pp 7-10.

Abstract:

A motivation for the method presented in this paper is the expansion of mobile radio communications. Here data are transmitted in bursts, where attached to each burst is a training sequence of short duration.

The purpose is to investigate what can be gained by combining spatial and temporal equalization in particular for short training sequences. The motivation for combining spatial and temporal equalization is the existence of multipath propagation and co-channel interference. Our main concern is to obtain good performance yet low complexity.

We will suggest a low complexity algorithm utilizing a circular antenna array. Although it has inferior performance in an asymptotic sense, it turns out to be superior to the general solution for short training sequences. This conclusion is supported by simulations where a number of algorithms are evaluated for different scenarios involving co-channel interference.

The suggested algorithm can also be extended to multi-user detection.

Related publications:

Licentiate Thesis by E Lindskog 1995.
Conference paper in IEEE VTC'95, which investigates related algorithms.

Source:

Pdf, 204K.