Practical implementation of a multisensor array receiver structure for wireless communications

Multisensor receivers are now acknowledged as a useful tool in the context of radio mobile communication, as well for equalization as for jammer rejection. Recall that due to multiple path propagation, an equalizer is needed whenever the propagation delays between paths are of the same order of magnitude as the symbol duration. Second, combatting jamming is the key to capacity improvement of a cellular network. Jamming can be caused by remote users in other cells, or by same cell users in the context of SDMA (spatial division multiple access). A receiver structure performing both equalization and jammer rejection is therefore needed. Such optimal structures have already been described. A practical implementation of such a receiver has been presented previously by Vila et al. Though being suboptimal, it is simple, and robust. This paper gives a theoretical justification of the approach. Simulation results are presented.