A diversity receiver for the Pan-European mobile digital system

The performance of the diversity receiver that has been designed in the Italtel laboratories for the Groupe Speciale Mobile (GSM) digital mobile system is described. In the Italtel scheme, the base station receiver will systematically contain the diversity option to improve the network resistance to noise and interference. Simulation results show a very effective action of the adopted diversity scheme against interference. The effect of the correlation of the various signals and the improvement that can be achieved with a three-branch receiver have also been considered. The reported results offer a wide range of possible solutions, making it possible to find the most satisfactory tradeoff between performance improvement and implementation complexity.<
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